OpenRouter
A unified API that gives you access to 400+ AI models from dozens of providers through a single endpoint and API key.
What is OpenRouter?
OpenRouter is a platform that connects you to over 400 AI models from OpenAI, Anthropic, Google, Meta, and dozens of other providers through one API.
Instead of managing separate API keys and billing for each AI company, you authenticate once and get access to everything from GPT-4 to Claude to Gemini through the same endpoint.
Most builders use it to test different models quickly, set up automatic fallbacks when one provider goes down, and compare pricing across providers in real-time. It works with existing OpenAI code by just changing the base URL.
Free tier available. Paid usage is pay-as-you-go at the same rates as going direct to providers, plus a small markup.
Good to Know
How Vibe Coders Use OpenRouter
Frequently Asked Questions
Your Idea to AI Business In Days
Join Dan, Zehra and 0 others building AI businesses in days with video tutorials and 1 on 1 support.
Related Terms
AI-powered search engine that answers questions with cited sources instead of showing a list of links.
A serverless platform for running AI image, video, and audio models with fast inference speeds and simple APIs for developers.
A set of rules that lets different software programs talk to each other and share data or functionality.
A unique string that authenticates your app when it calls an API, like a password that identifies who's making the request.
Controls how many API requests you can make in a time period to prevent abuse and keep servers stable.
Join 0 others building with AI