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OpenRouter vs vLLM

A factual side-by-side comparison of OpenRouter and vLLM. We compare pricing, categories, free tiers and official websites — no invented scores.

Updated 2026-10-22

Quick take

OpenRouter is Freemium; vLLM is Free. If you want to start free, check the free or freemium option first; otherwise compare the categories and taglines below.

OpenRouter
Freemium
OpenRouter

One API, hundreds of models

AI Dev Platforms
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vLLM
Free
vLLM

The inference-performance king, an industry default

AI Dev Platforms
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PricingFreemiumFree
CategoriesAI Dev PlatformsAI Dev Platforms
Best forOne API, hundreds of modelsThe inference-performance king, an industry default
Free tierYes — free or freemiumYes — free or freemium
Websiteopenrouter.aidocs.vllm.ai