Anthropic API vs OpenRouter
Anthropic API is listed under Frontier labs, OpenRouter under Gateways & routers. Each name links to the product's own site.
| Category | Frontier labs | Gateways & routers |
|---|---|---|
| Pricing | Paid | Freemium |
| Public code | No | No |
| Tags | claude, llm-api, tool-use, agents | openrouter, router, unified-api, fallback |
| Website | anthropic.com | openrouter.ai |
What Anthropic API does
Anthropic's API for the Claude model family. It supports tool use, long context, prompt caching and a batch endpoint, and is also sold through AWS Bedrock and Google Vertex AI.
What OpenRouter does
OpenRouter routes requests to models from many labs and hosts through a single OpenAI-compatible endpoint. It handles provider fallback and shows price and latency per provider.
Other options
See all Frontier labs, or alternatives to Anthropic API and OpenRouter.