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Natalie Yevtushyna
Natalie Yevtushyna

Posted on • Originally published at gonkarouter.io

AI Model Router vs AI Gateway vs Inference Cloud: What's the Actual Difference?

"AI gateway," "model router," "inference cloud," and "AI platform" get used interchangeably in a lot of marketing copy, which makes evaluating any specific product harder than it needs to be. They're not the same thing, and knowing which category something actually falls into tells you what to expect before you read a single feature list.

The four categories, roughly

Category What it actually is Example shape
Consumer AI app A ready-made chat interface for talking to a model ChatGPT, Claude.ai
Inference cloud Broad infra: deployment, GPUs, fine-tuning, hosting your own models Together AI, Replicate
AI gateway Enterprise-facing control layer: routing + policy + governance + observability across providers Portkey, Kong AI Gateway
Model router Developer-facing: one API, multiple models, minimal ceremony OpenRouter, GonkaRouter

The line between "gateway" and "router" is genuinely blurry in practice, a lot of products are both. But the useful distinction is intent: a gateway usually markets itself on governance and policy controls for platform teams, a router markets itself on developer speed, get one endpoint working against multiple models fast.

Where this actually matters: picking the right tool for the job

You need Reach for
A/B testing models for a specific agent step A router, not a full gateway
Org-wide policy enforcement, PII masking, audit logs across teams A gateway, not just a router
Deploying and fine-tuning your own model weights An inference cloud, neither of the above
Just talking to a model in a UI A consumer app, you don't need an API layer at all

Picking the wrong category wastes time. Adopting a governance-heavy gateway when you just want to A/B test two models for one agent step adds ceremony you don't need yet. Adopting a lightweight router when you actually need org-wide policy enforcement means you'll outgrow it and migrate later.

GonkaRouter as a worked example of the "router" category

GonkaRouter is a clean example of the developer-first router shape: one OpenAI- and Anthropic-compatible endpoint, currently routing to Qwen, Kimi, and MiniMax model families, built on the Gonka decentralized compute network. It's explicitly not positioning itself as an inference cloud (it doesn't host your custom model weights) or a governance-heavy gateway (no enterprise policy engine mentioned), it's the "get one endpoint working against several models, fast" category.

Use-case fit, concretely:

Use case Fits a router like this?
Agent steps needing different models (planning vs. summarization) Yes, this is the core case
A/B testing model quality for one feature Yes
Enterprise-wide policy enforcement across many teams No, that's gateway territory
Hosting your own fine-tuned model No, that's inference-cloud territory
Just prototyping, no real traffic yet Yes, especially with a trial credit to test before committing

Getting started, if the fit is right

from openai import OpenAI

client = OpenAI(
    api_key="sk-xxxxxx",
    base_url="https://api.gonkarouter.io/v1",
)

response = client.chat.completions.create(
    model="Qwen/Qwen3-235B-A22B-Instruct-2507-FP8",
    messages=[{"role": "user", "content": "Hello!"}],
)
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If you're OpenAI-client-shaped already, that's the entire integration. Current model list and live pricing: gonkarouter.io/models.

Curious how others here draw the router-vs-gateway line in practice, is it purely about governance features, or does self-hosted vs. hosted matter more to how you'd categorize a given tool?

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