DEV Community: Rohit Raj

DeepSeek V4 Pro vs Claude Sonnet 4.6 vs GPT-5.5: The Real MVP Cost in 2026

Rohit Raj — Sun, 24 May 2026 07:31:09 +0000

DeepSeek made its 75% V4 Pro discount permanent on 2026-05-22 — output tokens now sit at $0.87/M, roughly 34× below GPT-5.5 and 28× below Claude Sonnet 4.6. Here is the line-item math for a real India MVP, the benchmarks the pricing page hides, and the four production failure modes that decide whether the cheaper model actually saves you anything.

Read the full version with code samples, diagrams, and architecture details: DeepSeek V4 Pro vs Claude Sonnet 4.6 vs GPT-5.5: The Real MVP Cost in 2026

More engineering notes: rohitraj.tech/en/notes

Claude Code Plugins in 2026: The Context-Engineering Stack Indie Devs Are Actually Installing

Rohit Raj — Sat, 23 May 2026 17:43:49 +0000

Four of today\'s top 15 trending GitHub repos are Claude Code plugins. CodeGraph hit 2,434 stars in 24 hours. Karpathy\'s skills file: 3,372. This isn\'t noise — it\'s the moment context engineering became the differentiator. Here\'s what to install, what to skip, and why every listicle you\'ve read this month is already wrong.

Read the full version with code samples, diagrams, and architecture details: Claude Code Plugins in 2026: The Context-Engineering Stack Indie Devs Are Actually Installing

More engineering notes: rohitraj.tech/en/notes

PostHog vs Mixpanel vs Amplitude — Best Product Analytics for India MVP (2026)

Rohit Raj — Sat, 23 May 2026 09:30:35 +0000

PostHog wins for engineering-led India MVPs because it self-hosts on AWS Mumbai for DPDP compliance and bundles session replay + feature flags into one tier. Mixpanel wins for PM-heavy teams that want the lowest learning curve. Amplitude wins for funded teams with a dedicated analyst. The real cost gap at 10M events/month is 8×. Here is the math, the data-residency reality, and the exact stack I run on myFinancial.

Read the full version with code samples, diagrams, and architecture details: PostHog vs Mixpanel vs Amplitude — Best Product Analytics for India MVP (2026)

More engineering notes: rohitraj.tech/en/notes

Hire iOS Developer India 2026: Founding Engineer vs Agency vs Swift Freelancer (Real Cost)

Rohit Raj — Fri, 22 May 2026 12:53:49 +0000

A founding engineer in India ships a native iOS MVP in 6–8 weeks for ₹7.5–10.5L fixed — Swift, SwiftUI, TestFlight, both review submissions, all in. A Bangalore agency quotes ₹28–42L for the same scope, lands in 17 weeks, and hands you a codebase mixing UIKit and SwiftUI across screens. Here is the May 2026 rate card, the App Store review traps that bite native iOS specifically, and the decision tree I wish my last three FinTech and consumer-app founders had read.

Read the full version with code samples, diagrams, and architecture details: Hire iOS Developer India 2026: Founding Engineer vs Agency vs Swift Freelancer (Real Cost)

More engineering notes: rohitraj.tech/en/notes

Resend vs SendGrid vs AWS SES for India MVPs in 2026 — Real Cost on 10K Transactional Emails

Rohit Raj — Thu, 21 May 2026 11:06:35 +0000

Resend looks the friendliest, SendGrid looks the safest, and AWS SES looks the cheapest. Run a real 10K-email/month India MVP through each and the math, the deliverability to Indian Gmail inboxes, and the DLT-style compliance burden separate them by an order of magnitude. Here is which one survives a 50-user-to-5K-user growth curve, which one bankrupts you at scale, and the exact ₹ numbers I have logged across four client launches.

Read the full version with code samples, diagrams, and architecture details: Resend vs SendGrid vs AWS SES for India MVPs in 2026 — Real Cost on 10K Transactional Emails

More engineering notes: rohitraj.tech/en/notes

Hire Flutter Developer India 2026: Founding Engineer vs Agency vs FlutterFlow (Real Cost)

Rohit Raj — Wed, 20 May 2026 05:26:42 +0000

A founding engineer in India ships a Flutter MVP in 5–8 weeks for ₹6.5–9.5L fixed. A Bangalore agency quotes ₹24–38L for the same scope and lands in 16. FlutterFlow saves 3 weeks of UI work and then traps you in a no-code stack you cannot extend. Here is the real cost math for May 2026, which Flutter packages survive production, and the decision tree I wish my last two FinTech clients had read.

Read the full version with code samples, diagrams, and architecture details: Hire Flutter Developer India 2026: Founding Engineer vs Agency vs FlutterFlow (Real Cost)

More engineering notes: rohitraj.tech/en/notes

Hire React Native Developer India 2026: Founding Engineer vs Agency vs Freelance (Real Cost)

Rohit Raj — Mon, 18 May 2026 17:26:08 +0000

A founding engineer in India ships your React Native MVP for ₹6–9L in 6 weeks. The same scope from a Bangalore agency quotes ₹22–35L and lands in 16. A Toptal freelancer is ₹4,500/hr and a 3-week hiring loop. Here is the real cost math for 2026, which model fails on which kind of app, and the decision tree I wish my last three clients had read.

Read the full version with code samples, diagrams, and architecture details: Hire React Native Developer India 2026: Founding Engineer vs Agency vs Freelance (Real Cost)

More engineering notes: rohitraj.tech/en/notes

LangGraph vs CrewAI vs AutoGen: Which Multi-Agent Framework Wins for India MVPs in 2026

Rohit Raj — Mon, 18 May 2026 04:12:27 +0000

LangGraph, CrewAI, and AutoGen all promise the same thing — orchestrate three or four LLM calls into something that feels like an agent. Real cost, real latency, and real failure modes split them sharply once you ship. Here is which one survives a 200-user India MVP, which one bankrupts you, and which one I have spent ₹40K of OpenAI credits learning to avoid.

Read the full version with code samples, diagrams, and architecture details: LangGraph vs CrewAI vs AutoGen: Which Multi-Agent Framework Wins for India MVPs in 2026

More engineering notes: rohitraj.tech/en/notes

Drizzle vs Prisma vs TypeORM — Real ORM Pick for India MVP 2026

Rohit Raj — Sun, 17 May 2026 06:28:43 +0000

A Postgres-backed Next.js MVP shipping in 6 weeks: Drizzle cold-starts in ~40ms on Vercel Mumbai, Prisma at ~280ms (after the engine binary downloads), TypeORM at ~520ms with decorators bloating bundle size. Here is the real ORM math for an India MVP — cold start, type safety, migration story, edge runtime support, and which one to actually pick.

Read the full version with code samples, diagrams, and architecture details: Drizzle vs Prisma vs TypeORM — Real ORM Pick for India MVP 2026

More engineering notes: rohitraj.tech/en/notes

Founding Engineer Equity 2026 — How Much to Negotiate (India)

Rohit Raj — Sat, 16 May 2026 07:52:04 +0000

Carta says 1.5% for hire #1, dropping to 0.33% by hire #5. Pave median is 1%. AI talent pressure pushed the floor up since March 2026. Honest 2026 numbers — plus the $0-equity alternative most pre-seed founders should default to.

Read the full version with code samples, diagrams, and architecture details: Founding Engineer Equity 2026 — How Much to Negotiate (India)

More engineering notes: rohitraj.tech/en/notes

OpenAI vs Claude vs Gemini API — Real Cost for India MVP 2026

Rohit Raj — Sat, 16 May 2026 05:48:31 +0000

A WhatsApp support bot doing 10K conversations a month costs roughly ₹1,250 on Gemini 2.5 Flash, ₹3,800 on GPT-5-mini, and ₹7,200 on Claude Sonnet 4 — before GST, FX margin, and the 2% TDS your CA will flag on foreign invoices. Here is the line-item cost math, the latency truth from a Mumbai-based MVP, and which API actually wins for which India use case.

Read the full version with code samples, diagrams, and architecture details: OpenAI vs Claude vs Gemini API — Real Cost for India MVP 2026

More engineering notes: rohitraj.tech/en/notes

Pinecone vs Qdrant vs pgvector — Which Vector DB for India RAG MVP (2026)

Rohit Raj — Fri, 15 May 2026 10:51:10 +0000

At 500K embeddings for an Indian RAG MVP, Pinecone Standard costs ~₹6,200/month, self-hosted Qdrant runs ~₹1,400/month on Hetzner, and pgvector inside the Postgres you already pay for adds ₹0. Here is the real cost math, recall benchmark on a Hindi+English corpus, and the migration story when you outgrow each.

Read the full version with code samples, diagrams, and architecture details: Pinecone vs Qdrant vs pgvector — Which Vector DB for India RAG MVP (2026)

More engineering notes: rohitraj.tech/en/notes