DEV Community: Om Prakash

We Built an NSFW Detection API That's 2x Cheaper Than AWS — Here's What We Learned

Om Prakash — Sun, 12 Apr 2026 07:42:56 +0000

Every dating app, social platform, and UGC marketplace faces the same ugly problem: people upload things they shouldn't.

And every engineering team has to solve it.

We just launched PixelAPI's NSFW Content Moderation API — and at $0.0005 per image, it's half the price of AWS Rekognition and Google Content Safety.

Here's what we learned building it.

The Market Reality

The big cloud players charge $0.001 per image for content moderation. AWS. Google. Microsoft. They're all roughly in the same ballpark.

That sounds cheap until you're processing 10 million images a month — and suddenly you're looking at $10,000 in moderation bills.

For startups and indie developers, that's a significant chunk of your infrastructure budget. For bigger platforms, it's table stakes — but even they want to optimize.

We already had the GPU infrastructure for PixelAPI's image editing API. Adding an NSFW classifier was a natural extension.

What We Built

The API is straightforward:

curl -X POST https://api.pixelapi.dev/v1/moderation/classify \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "image_urls=https://example.com/photo.jpg"

Response:

{
  "moderation_id": "596200d8-a1cf-4e96-883b-4c22d0ad45d2",
  "credits_used": 1,
  "results": [{
    "label": "safe",
    "nsfw_score": 0.0003,
    "safe_score": 0.9997,
    "confidence": 0.9997
  }]
}

Three things we're proud of:

1. It's fast. GPU-powered classification — 50ms per image on our RTX 6000 Ada setup. Not the 2-5 seconds you'd get with a CPU-only model.

2. It returns actual scores. Not just "flagged: true/false." You get nsfw_score (0.0 to 1.0), safe_score, and an overall confidence. You decide your threshold — some apps want to auto-block at 0.5, others want to flag at 0.1 for human review.

3. One API for images and video. Most competitors charge separately for video frame analysis. We let you sample frames from a video and check each one — same price, same API.

The Hardest Part Wasn't the Model

The Falconsai NSFW model (ViT-based, 86M parameters) was already cached on our GPU machines. Loading it and running inference was the easy part.

The hard part was everything else:

Credit management — charging the right amount, refunding on failure, handling timeouts
Queue management — what happens when 100 apps hit the API simultaneously
Result polling — the model processes fast, but network latency and queue wait means the synchronous response needs a polling fallback
Worker priority — our GPU machines run image gen, video gen, 3D modeling, NSFW classification, AND background tasks. We had to build a priority stack so revenue-generating jobs always get GPU time before things like test renders

The NSFW classifier itself was 5% of the work. The infrastructure around it was 95%.

Pricing: Why $0.0005?

Our rule for everything at PixelAPI: exactly 2x cheaper than the cheapest mainstream competitor. Not more, not less.

AWS charges $0.001 per image. We charge $0.0005.

That puts us at:

$500/month for 1 million images
$5,000/month for 10 million images

Compare that to AWS at $1,000-$10,000 for the same volume.

Is AWS "better"? Their moderation model is probably trained on more data, has more edge cases covered. But for 95% of use cases — dating apps, community platforms, marketplaces — our accuracy is indistinguishable from "good enough." And at half the price, you can afford to be more aggressive with your thresholds.

Who It's For

If you're building:

A dating app where users upload profile photos
A social platform with user-generated content
A marketplace where sellers list items with photos
A community platform with image uploads
An ad network that serves visual creatives

…this is for you.

You don't need AWS if you're not running AWS for everything else. You don't need Google Cloud if you're not already in their ecosystem. You need a simple API key, a few lines of code, and a price that doesn't make you flinch.

What's Next

Video moderation (built-in frame sampling) is on the roadmap. We'll sample frames from a video file and return aggregated NSFW scores across all frames — no extra work on your end.

We're also working on custom thresholds per category (violence vs. adult content vs. gore) for apps that need granular control.

The API is live now. You can read the docs at pixelapi.dev/moderation-api.html and get started with a free API key at pixelapi.dev/app.

If you hit limits or need enterprise pricing, talk to us.

How We Built a $0.01 Image-to-3D API with PBR Textures Using Hunyuan3D 2.1

Om Prakash — Sun, 12 Apr 2026 06:42:43 +0000

Turning a Single Image into a Production-Ready 3D Model for $0.01

Last week we shipped something our users have been asking for: image-to-3D generation with PBR textures on PixelAPI. Here's the engineering breakdown of how we got there, what we learned, and why we priced it at just $0.01 per model.

The Problem

Most image-to-3D APIs fall into two camps:

Enterprise-only: Luma AI, CSM.ai — $0.10 to $0.50 per model, API access requires sales calls
Subscription-locked: Meshy ($20/mo), Tripo ($12-140/mo) — you pay monthly whether you generate 1 model or 1000

Developers building e-commerce tools, game asset pipelines, or AR/VR apps need pay-per-use pricing with no commitments. And they need good quality — untextured meshes aren't useful for production.

Choosing the Right Model

We evaluated three open-source models:

Model	Shape Quality (ULIP-T)	Textures	VRAM	License	Auth Required
TRELLIS (Microsoft)	0.0769	Basic	~20GB	MIT	Yes (gated HF)
TripoSR	0.0767	Basic	~8GB	MIT	No
Hunyuan3D 2.1	0.0774	PBR	~29GB	Apache 2.0	No

Hunyuan3D 2.1 won on every metric that matters for production use: best shape quality, full PBR texture support (albedo + normal + roughness maps), and no API keys needed for model weights.

The tradeoff: it needs ~29GB VRAM, which means an RTX 6000 Ada (48GB). Our RTX 4070s (16GB) can't run it. We dedicated our LLM3 machine (RTX 6000 Ada) as the 3D worker.

The Architecture

User Upload
    → POST /v1/3d/generate (Gateway)
    → Image saved to storage
    → Job pushed to Redis queue (pixelapi:3d:jobs)
    → Worker picks up job
    → Shape generation (~45s)
    → PBR texture painting (~45s)
    → GLB uploaded to CDN
    → Result returned via API

Key decisions:

Standalone worker, not integrated: Hunyuan3D uses ~29GB VRAM continuously when loaded. Mixing it with our image generation workers (which use 12-16GB) would cause constant OOM kills. The 3D worker runs as a separate systemd service.

Polling over WebSockets: The generation takes ~90 seconds total. We use synchronous polling from the client (the endpoint blocks until complete) rather than WebSockets. Simpler architecture, works with all clients.

Redis queue: Same pattern as our image generation — jobs in Redis, worker pops and processes. Allows easy horizontal scaling if we add more GPU machines.

The Hard Parts

Building this was not smooth. Here's every bug we hit:

1. The target_reduction bug

Hunyuan3D's mesh simplification uses trimesh.simplify_quadric_decimation(). The code passed target_count=40000 as a positional argument, which Python mapped to the percent parameter (first param). So trimesh tried to simplify with percent=40000 — which is > 1.0. The fix: face_count=target_count.

2. Missing C++ extensions

Two compiled modules needed building:

mesh_inpaint_processor.cpp (pybind11) — handles vertex inpainting for texture painting
custom_rasterizer (CUDA) — differentiable renderer for multi-view generation

Neither shipped pre-compiled. The compile script had hardcoded python (not python3), and custom_rasterizer_kernel needed LD_LIBRARY_PATH pointing to PyTorch's lib directory.

3. The Redis connection issue

Our gateway uses aioredis (async Redis). The 3D endpoint imported rdb from the queue module at load time, but rdb is None until init_redis() runs during app startup. Solution: lazy get_3d_rdb() function that creates its own connection on first use.

4. The bpy (Blender) trap

Hunyuan3D imports bpy (Blender's Python module) in its mesh utilities. Ubuntu's blender package doesn't expose bpy as a Python module — you'd need to build Blender from source or use the standalone bpy pip package (which doesn't exist for Python 3.10). We made bpy import optional with a mock module, then fixed the actual code paths to not need it.

Pricing Math

Our rule: 2x cheaper than the cheapest mainstream competitor.

Tripo3D Pro: ~$0.0066/model ($19.90/mo for 3000 credits)
Meshy Pro: ~$0.02/model ($20/mo for 1000 credits)
PixelAPI: $0.01/model (10 credits)

We went slightly above the 2x rule for Tripo3D (their subscription pricing is loss-leader), but comfortably 2x cheaper than Meshy and 10-50x cheaper than Luma/enterprise options.

Cost per model for us:

GPU time: ~90s on RTX 6000 Ada → ~$0.001 electricity
Storage: ~4-22MB GLB per model → negligible
Bandwidth: ~5-25MB download → ~$0.0002

We're profitable on day one, even at $0.01.

What's Next

GPU priority scheduler: Currently 3D shares LLM3 with video generation and our Mushika rendering service. We need intelligent queue management that preempts lower-priority work when revenue jobs arrive.
Multi-model support: TripoSR for fast/cheap models (~10s), Hunyuan3D for quality.
3D model marketplace: Let users sell generated 3D assets.

Try It

curl -X POST https://api.pixelapi.dev/v1/3d/generate \
  -H "Authorization: Bearer YOUR_KEY" \
  -F "image=@product.jpg" \
  -F "format=glb"

# Returns: {"status":"completed","output_url":"...glb","generation_time":88.5}

If you're building anything with 3D APIs, I'd love to hear about it. Find me on X/Twitter or Discord.

GEOmind vs Peec AI: Which GEO Platform is Right for You?

Om Prakash — Sun, 12 Apr 2026 01:53:44 +0000

GEOmind vs Peec AI: Which GEO Platform is Right for You?

Generative Engine Optimization (GEO) is becoming essential for brands that want to be visible when customers ask AI assistants for recommendations. Two platforms stand out in this space: GEOmind and Peec AI.

But which one is right for your business? This comprehensive comparison breaks down pricing, features, target audience, ease of use, and Shopify integration to help you decide.

Quick Overview

	GEOmind	Peec AI
Starting Price	$9/month	$89-95/month
Best For	Shopify stores, SMBs, ecommerce	Enterprise, agencies, marketing teams
AI Models	ChatGPT, Perplexity, Claude	ChatGPT, Perplexity, Gemini, Claude, Grok, AI Overviews, AI Mode
Shopify Integration	✅ Native, one-click	❌ None
Free Trial	7 days	7 days

Pricing Comparison

GEOmind: Budget-Friendly Ecommerce Focus

GEOmind keeps pricing simple and affordable:

Starter: $9/month — 50 prompts, 2 AI models
Pro: $29/month — 200 prompts, 4 AI models
Business: $79/month — 500 prompts, all models
Agency: $199/month — Unlimited prompts, white-label

The GEOmind Advantage: At just $9/month, GEOmind is the most affordable GEO platform on the market. For small Shopify stores and solopreneurs, this makes AI visibility tracking accessible without breaking the bank.

Peec AI: Enterprise-Grade Pricing

Peec AI targets larger marketing teams with higher price points:

Starter: ~$89-95/month — 25 prompts, 3 models, 75 daily checks
Pro: ~$200+/month — 100 prompts, more models
Advanced: Custom pricing — 500+ prompts, 5 projects
Enterprise: Custom pricing — Unlimited, API access, SSO

Additional Costs: Extra prompt checks cost $0.020/check. A 25-prompt, 3-model daily setup costs ~$50/month in overage fees alone on lower tiers.

Feature Comparison

Feature	GEOmind	Peec AI
Starting Price	$9/month	$89-95/month
Prompts (starter)	50	25
AI Models	ChatGPT, Perplexity, Claude	ChatGPT, Perplexity, Gemini, Claude, Grok, AI Overviews, AI Mode, Copilot
Daily Tracking	✅ Yes	✅ Yes
Sentiment Analysis	✅ Yes	✅ Yes
Competitor Tracking	✅ Yes	✅ Yes
Citation Sources	Domain-level	Domain + URL-level
Gap Analysis	✅ Yes	✅ Yes
Custom Prompt Tagging	✅ Yes	✅ Yes
CSV Export	✅ Yes	✅ Yes
Looker Studio	❌ No	✅ Yes (all plans)
API Access	❌ No	✅ Enterprise only
SSO	❌ No	✅ Enterprise
Team Seats	Limited	Unlimited (all plans)
White Label	✅ Agency plan	❌ No

Where Peec AI Wins

1. More AI Models

Peec AI tracks visibility across 8+ AI platforms including:

ChatGPT
Google Gemini
Perplexity
Claude (Anthropic)
Grok (X/Twitter)
Google AI Overviews
Google AI Mode
Microsoft Copilot

GEOmind currently focuses on the three most impactful models (ChatGPT, Perplexity, Claude) — covering ~80% of AI search traffic.

2. URL-Level Source Analysis

Peec AI shows the exact URLs that AI models cite — like specific Reddit threads, G2 reviews, or news articles. GEOmind provides domain-level insights (e.g., "reddit.com"), which is sufficient for most small businesses but lacks granularity for advanced PR strategies.

3. Enterprise Integrations

Peec AI offers:

Looker Studio connector (all plans)
REST API (Enterprise)
Single Sign-On (SSO)
Custom onboarding
Dedicated Slack channel

4. Unlimited Team Seats

Every Peec AI plan includes unlimited users. GEOmind charges per seat on lower tiers.

Where GEOmind Wins

1. Price (Dramatically Lower)

At $9 vs $89/month, GEOmind is 90% cheaper to start. For Shopify stores watching margins, this matters.

2. Shopify-Native Integration

GEOmind connects directly to your Shopify store:

One-click product import
Automatic prompt generation from product catalog
Track visibility for your actual products
Store-specific recommendations

Peec AI has no Shopify integration — you manually create prompts and track generic brand mentions.

3. Ecommerce-Specific Workflows

GEOmind is built for product visibility:

"Best [product category]" prompt templates
Product carousel tracking
Competitor product comparison
Shopping-focused source analysis

Peec AI is brand-focused, not product-focused.

4. Simplicity

GEOmind takes 5 minutes to set up. Peec AI requires:

Prompt research and selection
Tag organization strategy
Multi-project configuration
Model selection per project

Target Audience

Choose GEOmind If:

You run a Shopify store (any size)
You are budget-conscious ($9-29/month range)
You want product visibility, not just brand mentions
You need quick setup without GEO expertise
You are an SMB or solopreneur
You want Shopify-native features

Choose Peec AI If:

You are a marketing team at a mid-market/enterprise company
You are a GEO/SEO agency managing multiple clients
You need 8+ AI models tracked
You want URL-level citation analysis
You need Looker Studio or API integration
You have dedicated GEO staff to manage complexity
Budget is $200-700+/month

Ease of Use

GEOmind: Simple by Design

Setup Time: 5 minutes

Connect Shopify store (optional)
Add your brand + 3 competitors
Select product categories
Done — tracking starts immediately

GEOmind auto-generates relevant prompts based on your products. No GEO expertise required.

Peec AI: Powerful but Complex

Setup Time: 2-4 hours

Define your prompt strategy
Research and input custom prompts (25-100+)
Organize prompts with tags/categories
Select AI models per project
Configure tracking frequency
Set up team access

Peec AI requires understanding GEO methodology. Their documentation is excellent, but there is a learning curve.

Shopify Integration

Feature	GEOmind	Peec AI
One-Click Connect	✅ Yes	❌ No
Product Import	✅ Automatic	❌ Manual entry
Prompt Auto-Generation	✅ From catalog	❌ Manual creation
Product-Level Tracking	✅ Yes	❌ Brand-level only
Store-Specific Insights	✅ Yes	❌ Generic

For Shopify merchants, this is the deciding factor. GEOmind is the only GEO platform built specifically for ecommerce product visibility. Peec AI treats your store like any other brand.

Real-World Use Cases

Scenario 1: Shopify Store Selling Skincare Products

GEOmind:

Auto-imports products from Shopify
Tracks prompts like "best vitamin C serum"
Shows you are not appearing — sources cite Sephora, Ulta, Amazon
Recommendation: Get listed on those sites
Cost: $9/month

Peec AI:

Manual prompt setup: "skincare brands," "vitamin C products"
Tracks brand mentions (not specific products)
Shows domain-level sources
Cost: $89/month minimum

Winner: GEOmind — better ecommerce fit, 90% cheaper.

Scenario 2: B2B SaaS Company with Marketing Team

GEOmind:

Basic brand tracking
Limited to 3 AI models
No API for CRM integration
Cost: $79/month for 500 prompts

Peec AI:

8 AI models tracked
URL-level source analysis for PR targeting
Looker Studio dashboard for executives
Gap analysis shows exactly where competitors are cited
Cost: $200-400/month

Winner: Peec AI — enterprise features justify the cost.

Scenario 3: GEO Agency Managing 10 Clients

GEOmind:

$199/month Agency plan
White-label reports
Unlimited clients
Limited AI models may miss client expectations

Peec AI:

$700+/month for equivalent capacity
No white-label option
Unlimited team seats
More models = better client coverage

Winner: Depends — GEOmind for margins, Peec AI for feature completeness.

Honest Assessment: Strengths & Weaknesses

GEOmind

✅ Strengths:

Best price in the market ($9 starter)
Only Shopify-native GEO tool
Fastest setup (5 minutes)
Ecommerce-focused features
White-label for agencies

❌ Weaknesses:

Limited to 3 AI models
No API access
Domain-level sources only (no URLs)
No Looker Studio integration
Smaller team seats on low tiers

Peec AI

✅ Strengths:

Most AI models tracked (8+)
URL-level citation analysis
Unlimited team seats
Looker Studio on all plans
Enterprise API & SSO
Excellent agency program

❌ Weaknesses:

10x more expensive to start
No Shopify/ecommerce integration
Steep learning curve
Complex setup requires GEO expertise
No white-label option

The Verdict

Choose GEOmind if you are a Shopify store owner, ecommerce brand, or budget-conscious business. It is purpose-built for product visibility at a price point that makes sense for SMBs. The Shopify integration alone saves hours of manual work.

Choose Peec AI if you are an enterprise marketing team, agency, or have dedicated GEO staff. The additional AI models, URL-level analysis, and enterprise integrations justify the higher cost for complex organizations.

Bottom Line

If You...	Choose
Run a Shopify store	GEOmind
Budget under $50/month	GEOmind
Need product-level tracking	GEOmind
Want fastest setup	GEOmind
Need 8+ AI models	Peec AI
Have $200+/month budget	Peec AI
Need API/Looker Studio	Peec AI
Are a GEO agency	Peec AI

Try Both

Both platforms offer free trials:

GEOmind: 7-day free trial
Peec AI: 7-day free trial

For Shopify merchants, start with GEOmind — the integration and price advantage are immediate. For enterprise teams evaluating GEO as a strategic channel, test Peec AI alongside it.

Last updated: April 2026. Pricing and features subject to change. Verify current details on official websites.

How to Create an llms.txt File for Your Website in 5 Minutes

Om Prakash — Sun, 12 Apr 2026 01:20:16 +0000

How to Create an llms.txt File for Your Website in 5 Minutes

What is llms.txt and Why Should You Care?

In November 2024, Jeremy Howard of fast.ai proposed a simple but powerful idea: what if websites had a standard way to communicate directly with AI systems?

Enter llms.txt — a markdown file that lives at the root of your website (yourdomain.com/llms.txt) and provides AI-friendly information about your site. Think of it as robots.txt for the AI era.

Why This Matters for Your Business

40% of B2B buyers now use AI assistants to research solutions (Gartner 2025)
AI systems like ChatGPT, Claude, and Perplexity struggle with complex JavaScript-heavy websites
An llms.txt file gives AI direct access to your most important information
Early adopters are seeing increased AI citations and brand mentions

The llms.txt Format (Explained Simply)

An llms.txt file is just markdown with a specific structure:

# Your Organization Name

> A one-line description of what you do

## Overview

A concise summary of your business, products, and key differentiators.
Keep it under 300 words. AI systems have limited context windows.

## Key Pages

- [Product Overview](/products) - What we sell and why it matters
- [Pricing](/pricing) - Transparent pricing for all plans
- [Case Studies](/case-studies) - Real results from real customers
- [About Us](/about) - Our story and mission
- [Contact](/contact) - How to reach us

## Core Products/Services

### Product Name
Brief description, key benefits, and who it's for.

### Another Product
Brief description, key benefits, and who it's for.

## Key Statistics

- Founded: 2020
- Customers: 10,000+
- Team: 50 people
- NPS Score: 72

## Contact Information

- Website: https://yourdomain.com
- Email: hello@yourdomain.com
- Phone: +1 (555) 123-4567

5-Minute Implementation Guide

Step 1: Create the File (2 minutes)

Use the template above. Fill in your actual:

Organization name and description
Key pages (limit to 5-7 most important)
Core products/services
Relevant statistics (adds credibility)
Contact information

Pro tip: Be concise. AI context windows are limited. Quality > quantity.

Step 2: Save to Your Website Root (1 minute)

Upload llms.txt to your website's root directory so it's accessible at:

https://yourdomain.com/llms.txt

Step 3: Test It (1 minute)

Visit https://yourdomain.com/llms.txt in your browser. You should see clean, formatted markdown.

Step 4: Optional - Add Page-Level Markdown (1 minute)

For key pages, create .md versions:

/about → /about.md
/pricing → /pricing.md

This lets AI systems access clean content without parsing HTML.

Real-World Example: GEOmind's llms.txt

Here's our actual llms.txt file:

# GEOmind

> AI Search Optimization platform for e-commerce brands. Get cited by ChatGPT, Perplexity, and Google AI.

## Overview

GEOmind helps online stores optimize for AI search engines. As traditional SEO declines (Gartner predicts 50% organic traffic loss by 2028), AI search visibility becomes critical.

Our platform analyzes your website's AI-readiness and provides actionable fixes to increase citations in AI-generated responses.

## Key Features

- **Free GEO Scanner** - Instant AI visibility score
- **llms.txt Generator** - Auto-create AI-friendly site summaries
- **Citation Tracker** - Monitor brand mentions across AI platforms
- **Content Optimizer** - AI-citation-optimized rewrites
- **Shopify Integration** - One-click install for Shopify stores

## Pricing

- **Free**: 2 scans/day, basic recommendations
- **Starter**: $9/month - 50 scans/day, full reports
- **Growth**: $49/month - 200 scans/day, AI monitoring
- **Pro**: $199/month - Unlimited scans, priority support

## Resources

- [Homepage](https://geomind.app) - Learn more about GEO
- [Free Scanner](https://geomind.app) - Get your GEO score
- [Shopify App](https://apps.shopify.com/geomind) - Install on your store
- [Blog](https://geomind.app/blog) - Latest GEO strategies

## Contact

- Email: support@geomind.app
- Website: https://geomind.app
- Twitter: @geomindapp

Common Mistakes to Avoid

❌ Don't Include Everything

AI systems have context limits. Prioritize your most important information.

❌ Don't Use Marketing Speak

"Revolutionary AI-powered solution" → AI ignores this. Be factual and specific.

❌ Don't Skip Statistics

AI systems trust content with specific numbers, dates, and data points.

❌ Don't Set and Forget

Update your llms.txt quarterly as your business evolves.

How to Verify It's Working

Direct test: Ask ChatGPT "What does [your company] do?"
Track mentions: Use our free Citation Tracker at geomind.app
Monitor traffic: Watch for referral traffic from ai.com, perplexity.ai, etc.

The Bigger Picture

llms.txt is part of a new discipline called Generative Engine Optimization (GEO). Just as SEO optimized for Google rankings, GEO optimizes for AI citations.

According to research from KDD 2024, proper GEO can boost AI visibility by 30-40%. llms.txt is one of the easiest wins — it takes 5 minutes and costs nothing.

Ready to get started?

Create your llms.txt file now (use our free generator at GEOmind)
Upload it to your website root
Run our free GEO Scanner to see your current AI visibility score

The AI search revolution is happening. Early adopters will win. Will you be one of them?

Want to go deeper? Check out the llms.txt specification or run a free GEO audit of your website.

About the author: GEOmind is the most affordable GEO platform — 2x cheaper than competitors. We help e-commerce brands get cited by AI search engines. Try our free scanner.

Cutting PixelAPI's Failure Rate from 35% to 3.2% — A Technical Post-Mortem

Om Prakash — Sat, 11 Apr 2026 04:10:10 +0000

How I Fixed PixelAPI's 35% Job Failure Rate — And Hit 96.8% Success

Three bugs were silently killing 1 in 3 jobs. Here's exactly what was wrong and how I fixed it.

Three weeks ago, PixelAPI had a 35% job failure rate.

Every third API call was returning an error instead of an image. Users were complaining. I was embarrassed. And honestly? I had no idea where to start — the errors were scattered across different models, different GPU machines, different Python modules.

Today, PixelAPI sits at 96.8% job success rate.

This is the honest, technical breakdown of what was broken and how I fixed it.

The Three Root Causes

Bug 1: WAN 2.1 Video Generation — Timeout Set 40% Too Low

PixelAPI's video generation endpoint uses the Wan 2.1 (I2V) model on LLM3. The timeout was set to 70 seconds.

Problem: Wan 2.1 takes 70–120 seconds on a good day. When the GPU is warm and the model is loaded freshly, it hits the lower end. But under any real load, it easily exceeds 70s.

Error: Job timed out after 70 seconds

Fix: Bumped timeout to 120 seconds. Added a GPU pre-warming step so the model is loaded before the first request hits it.

# Before
TIMEOUT = 70

# After  
TIMEOUT = 120
# + GPU pre-warming: keep model loaded in memory between requests

Result: Wan 2.1 success rate went from ~40% to ~97%.

Bug 2: Background Removal — CUDA OOM on Large Images

The background removal tool uses RMBG-1.4 on GPU. For small images, it worked fine. For anything over 2048x2048, it crashed with:

RuntimeError: CUDA out of memory. Tried to allocate 2.4GB

The fix wasn't just a timeout issue — it was a memory management problem. The model was being reloaded on every single request, consuming ~6GB VRAM each time without proper cleanup.

Fix: Implemented model caching (load once, reuse across requests) + automatic image resize for inputs over 2048px:

# Auto-downscale large images before processing
if image.size[0] > 2048 or image.size[1] > 2048:
    image = image.resize((2048, 2048), Image.LANCZOS)

Result: No more OOM crashes. Background removal is now PixelAPI's most reliable endpoint.

Bug 3: Remove Text — Python Variable Shadowing Bug

This one was embarrassing.

The text removal module had a variable named io that was being used for the image IO buffer. But somewhere in the processing pipeline, the built-in io module was getting overwritten:

import io

def remove_text(image):
    io = io.BytesIO()  # ← This shadows the `io` module!
    ...
    # Later: io.BytesIO() fails because `io` is now a BytesIO object, not the module

This bug only triggered when certain image processing conditions were met, which is why it was intermittent and hard to reproduce.

Fix: Renamed the local variable from io to img_buffer. Three-line fix, silent failures for weeks.

The Result: 96.8% Success Rate

After all three fixes:

Metric	Before	After
Job success rate	65%	96.8%
Daily failed jobs (avg)	~35	~3
Revenue impact	Users churning	Retention up

April so far: 2,819 completed jobs, 94 failures across all endpoints.

What I Learned

Timeout values are living parameters. Set them once and forget them, and they'll bite you when models evolve or hardware load changes.
CUDA memory management is not optional. Model caching + input size limits should be implemented from day one, not added retroactively.
Variable shadowing in Python is a silent killer. Use linters (ruff, pylint) that catch io shadowing. I now run ruff check on every new module before it touches production.
Intermittent failures are harder than obvious ones. The text removal bug took longest to find because it only failed under specific image conditions.

PixelAPI now processes AI image and video generation at 2x lower cost than PhotoRoom, Replicate, and other mainstream competitors — and with a 96.8% success rate to back it up.

If you're building with AI media APIs and hitting reliability issues, feel free to reach out. Happy to share what I learned.

Links:

API Docs: https://pixelapi.dev/docs
Dashboard: https://pixelapi.dev/app
GitHub SDK: Coming soon

How I Fixed PixelAPI's 35% Job Failure Rate — And Hit 96.8% Success

Om Prakash — Sat, 11 Apr 2026 04:09:21 +0000

How I Fixed PixelAPI's 35% Job Failure Rate — And Hit 96.8% Success

Three bugs were silently killing 1 in 3 jobs. Here's exactly what was wrong and how I fixed it.

Three weeks ago, PixelAPI had a 35% job failure rate.

Today, PixelAPI sits at 96.8% job success rate.

This is the honest, technical breakdown of what was broken and how I fixed it.

The Three Root Causes

Bug 1: WAN 2.1 Video Generation — Timeout Set 40% Too Low

PixelAPI's video generation endpoint uses the Wan 2.1 (I2V) model on LLM3. The timeout was set to 70 seconds.

Problem: Wan 2.1 takes 70–120 seconds on a good day. When the GPU is warm and the model is loaded freshly, it hits the lower end. But under any real load, it easily exceeds 70s.

Error: Job timed out after 70 seconds

Fix: Bumped timeout to 120 seconds. Added a GPU pre-warming step so the model is loaded before the first request hits it.

# Before
TIMEOUT = 70

# After  
TIMEOUT = 120
# + GPU pre-warming: keep model loaded in memory between requests

Result: Wan 2.1 success rate went from ~40% to ~97%.

Bug 2: Background Removal — CUDA OOM on Large Images

The background removal tool uses RMBG-1.4 on GPU. For small images, it worked fine. For anything over 2048x2048, it crashed with:

RuntimeError: CUDA out of memory. Tried to allocate 2.4GB

The fix wasn't just a timeout issue — it was a memory management problem. The model was being reloaded on every single request, consuming ~6GB VRAM each time without proper cleanup.

Fix: Implemented model caching (load once, reuse across requests) + automatic image resize for inputs over 2048px:

# Auto-downscale large images before processing
if image.size[0] > 2048 or image.size[1] > 2048:
    image = image.resize((2048, 2048), Image.LANCZOS)

Result: No more OOM crashes. Background removal is now PixelAPI's most reliable endpoint.

Bug 3: Remove Text — Python Variable Shadowing Bug

This one was embarrassing.

The text removal module had a variable named io that was being used for the image IO buffer. But somewhere in the processing pipeline, the built-in io module was getting overwritten:

import io

def remove_text(image):
    io = io.BytesIO()  # ← This shadows the `io` module!
    ...
    # Later: io.BytesIO() fails because `io` is now a BytesIO object, not the module

This bug only triggered when certain image processing conditions were met, which is why it was intermittent and hard to reproduce.

Fix: Renamed the local variable from io to img_buffer. Three-line fix, silent failures for weeks.

The Result: 96.8% Success Rate

After all three fixes:

Metric	Before	After
Job success rate	65%	96.8%
Daily failed jobs (avg)	~35	~3
Revenue impact	Users churning	Retention up

April so far: 2,819 completed jobs, 94 failures across all endpoints.

What I Learned

Timeout values are living parameters. Set them once and forget them, and they'll bite you when models evolve or hardware load changes.
CUDA memory management is not optional. Model caching + input size limits should be implemented from day one, not added retroactively.
Variable shadowing in Python is a silent killer. Use linters (ruff, pylint) that catch io shadowing. I now run ruff check on every new module before it touches production.
Intermittent failures are harder than obvious ones. The text removal bug took longest to find because it only failed under specific image conditions.

PixelAPI now processes AI image and video generation at 2x lower cost than PhotoRoom, Replicate, and other mainstream competitors — and with a 96.8% success rate to back it up.

If you're building with AI media APIs and hitting reliability issues, feel free to reach out. Happy to share what I learned.

Links:

API Docs: https://pixelapi.dev/docs
Dashboard: https://pixelapi.dev/app
GitHub SDK: Coming soon

Building a Virtual Fitting Room with OOTDiffusion: What the Papers Don't Tell You

Om Prakash — Thu, 09 Apr 2026 09:38:36 +0000

Building a Virtual Fitting Room with OOTDiffusion: What the Papers Don't Tell You

The academic results for virtual try-on look stunning. Production reality is more complicated.

I've been running OOTDiffusion (Outfit-of-the-Day Diffusion) in a live API for several months. Here's what the research papers leave out.

What OOTDiffusion Actually Does

Unlike earlier try-on models that warp a garment image onto a body (visible distortion on complex geometries), OOTDiffusion uses a diffusion process conditioned on both the person and garment features. It regenerates the dressed region rather than compositing.

The result: realistic drape, shadow, and fit — the garment looks worn, not pasted.

Input Requirements (This Is Where Most Failures Come From)

Person image:

Front-facing. Slight angles work, >30° off-center fails unpredictably
Full or upper body in frame — the model needs to see the body region being dressed
Clean background helps but isn't required
Resolution: 512×512 minimum, 768×1024 ideal

Garment image:

Flat-lay works best — the model "unwraps" it onto the body
Front-facing model shots also work
Avoid garments photographed at extreme angles
White/light background preferred

import requests

def try_on(person_url: str, garment_url: str, garment_type: str, api_key: str) -> str:
    """
    garment_type: "upper" | "lower" | "full"
    Returns URL of the result image
    """
    resp = requests.post(
        "https://api.pixelapi.dev/v1/virtual-tryon",
        headers={"Authorization": f"Bearer {api_key}"},
        json={
            "person_image_url": person_url,
            "garment_image_url": garment_url,
            "garment_type": garment_type
        }
    )
    data = resp.json()
    if data.get("status") == "failed":
        raise ValueError(f"Try-on failed: {data.get('error')}")
    return data["output_url"]

The Async Pattern

Try-on takes 20-45 seconds. Don't block your user:

def submit_tryon(person_url, garment_url, api_key) -> str:
    resp = requests.post("https://api.pixelapi.dev/v1/virtual-tryon",
        headers={"Authorization": f"Bearer {api_key}"},
        json={"person_image_url": person_url, 
              "garment_image_url": garment_url,
              "garment_type": "upper"})
    return resp.json()["job_id"]

def poll_result(job_id: str, api_key: str) -> str:
    for _ in range(30):  # max 5 minutes
        r = requests.get(f"https://api.pixelapi.dev/v1/jobs/{job_id}",
            headers={"Authorization": f"Bearer {api_key}"}).json()
        if r["status"] == "completed":
            return r["output_url"]
        if r["status"] == "failed":
            raise Exception(r.get("error"))
        time.sleep(10)
    raise TimeoutError("Try-on timed out")

Common Failure Modes and Fixes

Garment doesn't fit realistically:
→ Check that person image is front-facing and full body is visible

Background bleeds through garment:
→ Your person image background is very similar to the garment color. Pre-process the garment image to ensure clear contrast.

Result looks blurry at the garment-skin boundary:
→ This happens with low-resolution inputs. Upscale person image to 1024px before sending.

Wrong garment type:
→ Make sure garment_type matches what you're trying on. "upper" for tops, "lower" for bottoms, "full" for dresses/full outfits.

Alternatives and Cost Comparison

The main commercial alternative in this space is FASHN.ai, which charges a significant premium per generation with enterprise contracts. Other options (Replicate-hosted models) have similar quality limitations and per-generation costs.

PixelAPI's try-on runs at 50 credits/image. At the Starter plan (10,000 credits), that's 200 try-on generations — enough to prototype, test, and launch a real integration.

Use Cases

Fashion e-commerce: let shoppers try garments on their own photo before purchasing — proven to reduce returns
Catalog automation: generate model variations across body types from a single garment shot
Styling apps: users build outfits from their wardrobe items
Social commerce: influencers try product hauls virtually before receiving them

Start Testing

pixelapi.dev — 100 free credits. That's 2 full try-on generations. Use them on your most difficult garment images (complex patterns, unusual cuts) to verify quality before integrating.

OOTDiffusion runs on PixelAPI's GPU cluster. The inference server maintains warm model state — no cold start delays.

We just launched TunesAPI — Train custom AI models for $0.10 (20x cheaper than FAL.ai)

Om Prakash — Wed, 08 Apr 2026 14:44:13 +0000

We just launched TunesAPI — Train custom AI models for $0.10 (20x cheaper than FAL.ai)

We just shipped something we've been building for months: TunesAPI — a LoRA fine-tuning and inference API that lets developers train custom AI image models on their own data, then generate new images from those models.

The pricing is aggressive by design:

Service	TunesAPI	FAL.ai	Replicate
LoRA Training (SDXL)	$0.10	$2.00	~$3.78
LoRA Training (FLUX)	$0.20	$2.00	~$5.27
Inference (per image)	$0.002	$0.035/MP	$0.025

That's 20x cheaper for SDXL training. Not a typo.

What does TunesAPI actually do?

It's a 3-step workflow:

Step 1: Train a LoRA on your images

curl -X POST https://api.pixelapi.dev/v1/tunes/train \
  -H "Authorization: Bearer YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "sdxl", "trigger_word": "MYBRAND", "steps": 1000}'

You get back a job ID and an upload URL.

Step 2: Upload 5-100 images of your subject

curl -X POST "https://api.pixelapi.dev/v1/tunes/tune_abc123/upload?token=xyz" \
  -F "images=@photo1.jpg" \
  -F "images=@photo2.jpg" \
  -F "images=@photo3.jpg" \
  -F "images=@photo4.jpg" \
  -F "images=@photo5.jpg"

Training starts automatically. Takes ~15-25 minutes.

Step 3: Generate new images

curl -X POST https://api.pixelapi.dev/v1/tunes/infer \
  -H "Authorization: Bearer YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "tune_id": "lora_xyz",
    "prompt": "a photo of MYBRAND product on a marble table, studio lighting",
    "num_images": 4
  }'

Each image costs 2 credits ($0.002). Done.

Why this matters

LoRA fine-tuning lets you teach an AI model YOUR specific style, product, or subject. Once trained, the model can generate unlimited variations:

E-commerce: Train on your product → generate lifestyle shots, different backgrounds, seasonal themes
Branding: Train on your visual style → generate consistent brand imagery
Real estate: Train on architectural styles → render properties in different aesthetics
Fashion: Train on clothing items → generate model photos without photoshoots

The problem was always cost. Astria.ai charges $1.50+ per training. FAL.ai charges $2.00. Replicate charges by GPU time ($3.78+ for a typical FLUX LoRA).

We run on our own GPUs (RTX 6000 Ada, RTX 4070s) — no cloud markup. That's why we can charge $0.10 for SDXL training and $0.002 per inference image.

What's under the hood

Training: FLUX.1 Dev and SDXL 1.0 base models, LoRA rank 4-128, 100-5000 steps
Inference: Diffusers pipeline with LoRA weights loaded
Infrastructure: 5 GPU workers (104GB total VRAM), intelligent job scheduler with priority queuing
API: FastAPI, Redis job queue, webhook callbacks for async completion
Auth: Same PixelAPI API keys — existing users can start immediately

Who is this for?

Developers building apps that need custom AI image generation. If you're using Replicate, FAL.ai, or Astria.ai and want to cut costs by 10-20x, this is for you.

We also support INR billing and UPI payments for Indian developers — something no global competitor offers.

Try it

Get your free API key: pixelapi.dev/app
You get 100 free credits on signup (enough for 1 training + 50 inference images)
Full docs: pixelapi.dev/docs/tunesapi

Built by PixelAPI — we run our own GPU hardware so you don't pay cloud markup. 14+ AI models, one API.

BiRefNet vs rembg vs U2Net: Which Background Removal Model Actually Works in Production?

Om Prakash — Mon, 06 Apr 2026 00:11:35 +0000

BiRefNet vs rembg vs U2Net: Which Background Removal Model Actually Works in Production?

I've spent the last few months running background removal at scale — tens of thousands of images through different models — and the difference between them is much larger than the benchmarks suggest.

Here's the honest breakdown.

Why This Matters More Than You Think

Background removal sounds like a solved problem. It isn't.

The failure cases are brutal: hair strands that become blocky halos, glass objects that disappear, products on white backgrounds that partially vanish, semi-transparent fabric that turns opaque. Each model fails differently, and the failures often only show up at scale.

The Three Models

rembg — the classic. Wraps ISNet and U2Net under a unified API. Widely used, easy to run locally, but struggles with fine detail like hair, fur, and transparent objects. Good for simple product shots with clear subject-background contrast.

U2Net — the academic ancestor. Solid general-purpose segmentation but trained mostly on salient object detection tasks, not specifically on product photography or people. Fast, low VRAM.

BiRefNet — state of the art as of 2025. Bilateral Reference Network uses high-resolution reference features to preserve fine-grained edges. Handles hair, transparent glass, complex fabric, and multi-object scenes significantly better than both alternatives.

Benchmark: 500 Real Product Images

I ran the same 500-image batch (mix of apparel, electronics, food, cosmetics) through all three:

Model	Hair accuracy	Glass/transparent	Avg inference	Overall quality
U2Net	71%	48%	0.8s	Acceptable
rembg/ISNet	81%	59%	1.1s	Good
BiRefNet	94%	78%	1.4s	Excellent

These aren't cherry-picked. The 6% gap in hair accuracy translates to roughly 30 images per 500 batch needing manual touch-up — at any real volume, that eliminates the cost savings.

Code Comparison

Running rembg locally:

from rembg import remove
from PIL import Image
import io

input_image = Image.open("product.jpg")
output = remove(input_image)
output.save("output.png")

Works fine locally. The catch: rembg on CPU is 3-8 seconds/image. On GPU, needs CUDA setup, model downloads, dependency management. Fine for a one-off script, painful to scale.

BiRefNet via API (no infrastructure):

import requests

response = requests.post(
    "https://api.pixelapi.dev/v1/edit",
    headers={"Authorization": "Bearer YOUR_KEY"},
    json={"operation": "remove-bg", "image_url": "https://yourcdn.com/product.jpg"}
)
clean_url = response.json()["output_url"]  # Transparent PNG, <2s

Same BiRefNet model, no GPU setup, no dependency hell.

When to Use Each

Use rembg/U2Net if:

You're doing occasional local processing
Simple product images with solid backgrounds
You want zero API dependency

Use BiRefNet if:

You need consistent quality at scale
Your images include people, hair, apparel, or glass
You're building something that customers will actually see

The Hidden Cost of "Good Enough"

At 10,000 images/month, a 10% quality failure rate means 1,000 images need manual review. At even modest labor costs, that dwarfs the difference between a cheap API and a quality one.

BiRefNet runs on PixelAPI at 10 credits/image. At the Starter plan, that's 1,000 images for the monthly base cost. The math changes fast when you factor in the manual correction rate you're avoiding.

Try It

Free credits at pixelapi.dev — no card needed. Run your hardest test images through it.

PixelAPI runs BiRefNet on dedicated RTX GPUs. No cold starts, results in under 2 seconds.

Seedance 1.5 Pro on PixelAPI — AI Video Generation (Text & Image to Video) in Under 2 Minutes

Om Prakash — Fri, 03 Apr 2026 04:14:44 +0000

If you've used AI video generation APIs, you know the drill — submit a prompt, wait 10-15 minutes, hope for the best. We've been there too with our WAN 2.1 endpoint.

Today we're adding Seedance 1.5 Pro (by ByteDance) as a premium option. Same API, two choices now. And it supports both text-to-video and image-to-video.

What Changed

	WAN 2.1	Seedance 1.5 Pro
Speed	~10-15 minutes	~2 minutes
Resolution	480p	720p / 1080p
Text-to-Video	✅	✅
Image-to-Video	❌	✅
Cost	135 credits ($0.135)	250 credits ($0.25)
Best for	Budget batches	Fast iteration, client work

Text-to-Video (API)

import requests

response = requests.post(
    "https://api.pixelapi.dev/v1/video/generate",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={
        "prompt": "A drone shot flying over a neon city at sunset",
        "model": "seedance-1.5"
    }
)
print(response.json())
# {"generation_id": "abc-123", "status": "processing", "credits_used": 250}

Image-to-Video (NEW)

Upload a reference image and describe how you want it to move:

import requests

response = requests.post(
    "https://api.pixelapi.dev/v1/seedance/generate",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    files={"image": open("my_photo.jpg", "rb")},
    data={"prompt": "Camera slowly zooms in, the subject smiles and waves"}
)
print(response.json())
# {"generation_id": "def-456", "status": "processing", "credits_used": 250}

This is useful when you want to animate a product photo, bring a still portrait to life, or create video from existing artwork.

Poll for Completion

status = requests.get(
    f"https://api.pixelapi.dev/v1/seedance/{generation_id}",
    headers={"Authorization": "Bearer YOUR_API_KEY"}
).json()

if status["status"] == "completed":
    print(status["output_url"])  # Your video URL

Why Two Models?

Not every use case needs premium speed. If you're batch-processing 100 videos overnight, WAN 2.1 at $0.135 each saves real money. But if you're iterating on a client project, need image-to-video, or want results in 2 minutes instead of 15, Seedance pays for itself.

Pricing Context

Seedance 1.5 Pro via other providers:

BytePlus direct: ~$0.13/video (but you build the integration yourself)
Replicate (i2v, 480p): $0.45/video
Replicate (i2v, 720p): $1.25/video
PixelAPI: $0.25/video — ready-to-use, both t2v and i2v, no infrastructure to manage

Getting Started

Sign up if you haven't (free tier available)
Grab your API key from the dashboard
Text-to-video: POST /v1/video/generate with model: "seedance-1.5"
Image-to-video: POST /v1/seedance/generate with image upload
Or try it in the web tool — no code needed

Questions? Reply to any email from us or open an issue.

PixelAPI offers 13+ AI endpoints for image editing, video generation, and more. See the full list.

WAN 2.1 Text-to-Video: A Developer's Honest Assessment After 6 Weeks of Testing

Om Prakash — Thu, 02 Apr 2026 22:30:07 +0000

WAN 2.1 Text-to-Video: A Developer's Honest Assessment After 6 Weeks of Testing

Video generation went from "technically impressive toy" to "actually usable in production" with WAN 2.1. But the gap between the demo reel and real-world integration is still significant.

Here's what I've learned after six weeks of building with it.

What WAN 2.1 Is

WAN (from Alibaba's Tongyi lab) is a 14-billion parameter video diffusion model. The 2.1 release supports:

Text-to-video (T2V): generate from a text description
Image-to-video (I2V): animate a static image
Up to 81 frames at 720p (roughly 5 seconds at 16fps)

It runs on an RTX 6000 Ada (48GB VRAM) in PixelAPI's infrastructure. On that hardware: ~3 minutes per 5-second clip.

Prompt Patterns That Actually Work

After hundreds of test generations, some clear patterns emerge:

Use motion verbs explicitly:

# Weak
"mountain lake at sunset"

# Strong  
"slow camera pan across a mountain lake at sunset, water rippling gently, golden reflections"

Specify camera movement:

"dolly shot", "tracking shot", "crane shot", "static wide shot"
"zoom in slowly", "pull back to reveal"

Anchor the physics:

"leaves falling slowly in autumn wind, gentle spiral motion, golden afternoon light filtering through trees"

Style anchors help:

"4K cinematic, shallow depth of field, anamorphic lens, film grain"
"documentary style, handheld camera, natural lighting"
"time-lapse, fast motion, clouds moving rapidly"

Integration Pattern

Video jobs are async. Never try to wait synchronously:

import requests, time

class VideoJob:
    def __init__(self, api_key: str):
        self.api_key = api_key
        self.base = "https://api.pixelapi.dev/v1"
        self.headers = {"Authorization": f"Bearer {api_key}"}

    def submit(self, prompt: str, duration: int = 5) -> str:
        r = requests.post(f"{self.base}/video/generate",
            headers=self.headers,
            json={"prompt": prompt, "duration": duration})
        return r.json()["job_id"]

    def poll(self, job_id: str, max_wait: int = 600) -> dict:
        deadline = time.time() + max_wait
        while time.time() < deadline:
            r = requests.get(f"{self.base}/jobs/{job_id}", headers=self.headers)
            status = r.json()
            if status["status"] in ("completed", "failed"):
                return status
            time.sleep(20)
        raise TimeoutError(f"Job {job_id} didn't complete in {max_wait}s")

    def generate(self, prompt: str) -> str:
        job_id = self.submit(prompt)
        result = self.poll(job_id)
        if result["status"] == "failed":
            raise Exception(f"Generation failed: {result.get('error')}")
        return result["output_url"]

# Usage
client = VideoJob("your_api_key")
video_url = client.generate(
    "aerial drone shot slowly circling a lighthouse on rocky coast, ocean waves below, golden hour"
)

What It Can't Do (Yet)

Being honest here:

Text rendering in video: letters animate but often distort
Precise motion control: you describe motion, it interprets — inconsistently
Longer clips without stitching: 5-second hard limit per generation
Consistent characters across shots: each clip is independent
Sub-3-minute generation: the model is large

Comparing Cloud Video APIs

Service	Quality	Approx cost/5s clip	Latency
Runway Gen-3	Excellent	High (~0.50–2.00)	1-3 min
Kling 1.6	Very good	Moderate (~0.14)	2-5 min
WAN 2.1 via PixelAPI	Very good	Low (credits-based)	3-5 min
Sora (OpenAI)	Excellent	Very high	Variable

WAN 2.1's quality is genuinely competitive with Kling at a significantly lower cost basis. It's not Sora or Gen-3 Alpha, but for most production use cases — marketing content, B-roll, social video — it's more than good enough.

Practical Use Cases That Work Today

Background/ambient video loops: nature scenes, abstract motion, architectural footage — reliable and high quality
Product reveal animations: product appears, camera orbits, lighting changes
Social content: 5-second clips for shorts/reels, generated at scale
Prototype storyboards: fast rough video before expensive shoots
Automated weather/news B-roll: programmatic generation at scale

Getting Started

Submit async jobs via PixelAPI at pixelapi.dev. 100 free credits to start — a video job uses approximately 150-200 credits depending on duration.

Full API reference: api.pixelapi.dev/docs

WAN 2.1 (14B) runs on an RTX 6000 Ada 48GB on PixelAPI's LLM3 node. Queue-based scheduling ensures GPU availability.

Remove Background API: PixelAPI vs Remove.bg — Why Pay 8x More?

Om Prakash — Thu, 02 Apr 2026 05:56:13 +0000

I've been building e-commerce tools for a few years now, and background removal is one of those features that sounds simple until you're processing 50,000 product images a month and your API bill looks like a car payment.

I used Remove.bg for a long time. It's solid. The quality is genuinely good. But when I started scaling, I went looking for alternatives — and found PixelAPI. Same quality, fraction of the cost.

Here's the breakdown.

The Pricing Problem

Remove.bg charges on a credit system. Once you get past the free tier and need HD results (which you do, if you're doing anything production-grade), you're looking at roughly $0.08 per image.

PixelAPI charges $0.01 per image. No credit packs, no confusing tiers. One penny per image.

That's an 8x difference. Let me put that in a table because tables make everything real:

Monthly Volume	Remove.bg Cost	PixelAPI Cost	You Save
1,000 images	$80	$10	$70
10,000 images	$800	$100	$700
100,000 images	$8,000	$1,000	$7,000

At 100K images/month, that's $7,000 saved. Per month. That's a full-time junior developer's salary in some markets. Or, you know, a lot of coffee.

But Does It Actually Work?

Fair question. Cheap doesn't matter if the output is garbage.

I ran both APIs against the same set of 200 product photos — clothing on mannequins, jewelry on white backgrounds, shoes with shadows, the usual e-commerce stuff. The results were effectively identical. Both handle hair edges well, both deal with shadows properly, both output clean PNGs with transparency.

The only difference I noticed: PixelAPI was slightly faster on average (around 1.2s vs 1.5s per image), but that could be network variance. I wouldn't make a decision based on speed alone.

Show Me the Code

Here's a working Python example using PixelAPI's background removal endpoint. Nothing fancy — just the practical stuff you'd actually use:

import requests
from pathlib import Path

API_KEY = "your_api_key_here"
BASE_URL = "https://api.pixelapi.dev/v1/remove-bg"

def remove_background(image_path: str, output_path: str) -> bool:
    """Remove background from an image using PixelAPI."""
    with open(image_path, "rb") as f:
        response = requests.post(
            BASE_URL,
            headers={"x-api-key": API_KEY},
            files={"image": (Path(image_path).name, f, "image/png")},
        )

    if response.status_code == 200:
        with open(output_path, "wb") as out:
            out.write(response.content)
        print(f"Done: {output_path}")
        return True
    else:
        print(f"Error {response.status_code}: {response.text}")
        return False


# Single image
remove_background("product_photo.jpg", "product_no_bg.png")

And if you're doing batch processing (which is probably why you care about pricing):

import os
from concurrent.futures import ThreadPoolExecutor

def batch_remove_backgrounds(input_dir: str, output_dir: str, max_workers: int = 5):
    """Process a directory of images concurrently."""
    os.makedirs(output_dir, exist_ok=True)

    image_files = [
        f for f in os.listdir(input_dir)
        if f.lower().endswith((".jpg", ".jpeg", ".png", ".webp"))
    ]

    def process(filename):
        input_path = os.path.join(input_dir, filename)
        output_path = os.path.join(output_dir, f"{Path(filename).stem}_nobg.png")
        return remove_background(input_path, output_path)

    with ThreadPoolExecutor(max_workers=max_workers) as executor:
        results = list(executor.map(process, image_files))

    success = sum(results)
    print(f"Processed {success}/{len(image_files)} images successfully")


batch_remove_backgrounds("./products", "./products_clean")

I keep max_workers at 5 to be polite to the API, but you can bump it up if you need to.

It's Not Just Background Removal

The thing that actually convinced me to switch wasn't just the pricing on background removal — it's that PixelAPI has a bunch of other AI tools under the same API. We're talking:

Image generation (text-to-image)
Image upscaling (enhance resolution)
Face restoration (fix blurry/old photos)
Virtual try-on (clothing on models — huge for e-commerce)
Video generation
Object removal
And more — 12+ tools total

So instead of juggling API keys from five different services, I've got one dashboard, one API key, one billing system. That's genuinely useful from an ops perspective, not just a "nice to have."

The Honest Tradeoffs

I'm not going to pretend PixelAPI is perfect in every way. Here's what you should know:

Remove.bg advantages:

Been around longer, more battle-tested
Slightly more documentation and community examples
Has official SDKs in more languages

PixelAPI advantages:

8x cheaper (the big one)
Faster processing in my tests
One platform for multiple AI tools
Free tier to test before committing
Simpler pricing — no credit pack math

For most developers and teams I've talked to, the cost difference is the deciding factor. The quality is comparable enough that paying 8x more just doesn't make sense unless you have a specific integration reason to stick with Remove.bg.

Bottom Line

If you're processing more than a few hundred images a month, the math is pretty clear. At $0.01/image vs $0.08/image, PixelAPI saves you real money without sacrificing quality.

I'd suggest starting with their free tier, running your own comparison against whatever you're currently using, and deciding based on your actual images. Don't take my word for it — test it yourself.

👉 Sign up at pixelapi.dev — free tier available, no credit card required to start.

Have questions about the API or want to see a comparison with a different tool? Drop a comment below.