How it works
OpenRouter offers an OpenAI-compatible API in front of models from OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek and many more, so trying a different model means changing one name. For open models served by several hosts it can route by price, speed or uptime and fall back to another host when one fails, and account settings can exclude hosts that log prompts or train on them.
Model prices are passed through at each provider's own rates, and OpenRouter charges a fee when you buy credits. Some models are free with low daily request limits, which suits experiments rather than production, and you can bring your own provider keys. The trade-off is one more company in the path of every request, and hosts of the same open model can differ in speed and quality, for example in how heavily they compress it.
OpenRouter pros and cons
Pros
- One key, one bill and one API for hundreds of models
- Compare or switch models by changing a name
- Automatic fallback when a provider is down
- Free models for experiments, and privacy filters per account
Cons
- A fee on every credit purchase, on top of model prices
- Adds a middleman to your data path and your uptime
- Quality and speed can vary between hosts of the same open model
When to use OpenRouter
Pick it when
- You want to test many models before settling on one
- An app needs several providers without separate contracts
- Fallback across providers matters for uptime
Skip it when
- You use one provider and want the shortest data path
- A contract requires a direct agreement with the model vendor
OpenRouter pricing
Pay as you go
Model prices match the providers' own. Buying credits carries a fee (about 5.5% on the standard plan). Free models allow about 50 requests a day, or 1,000 after $10 of credit.
OpenRouter pricing page (opens in a new tab)Approximate, checked September 2026.What the other tools cost
OpenRouter vs the alternatives
- OpenAI vs Gemini vs Claude vs OpenRouterThree model makers and one gateway in front of them all. Prices are rough ranges per million input tokens; output tokens cost about four to six times more.
- Cloud API vs gateway vs running it yourselfThree ways to get a model's answers into an app: sign up with one provider, go through a gateway to many, or run an open model on hardware you control.
Related terms
More in AI and LLMs
Model providers