One API for 500+ AI models across 80+ providers — pay with credits that work anywhere, with automatic fallback when a provider goes down.
OpenRouter is a unified API for AI models: 500+ models from 80+ providers, including Anthropic, OpenAI, Google, Meta, Mistral, and Microsoft, all behind one OpenAI-compatible interface. Because routing is distributed, a failing provider falls back to another automatically, and edge infrastructure keeps latency low. Billing is credit-based rather than per-provider subscriptions, so the same balance works across every model, and custom data policies let you control which models and providers ever see your prompts. It also surfaces live pricing and throughput per provider, so you can compare the real cost of the same model across hosts. The platform reports 200T+ monthly tokens, 10M+ users, and 250k+ apps built on it, including Replit, Hermes Agent, and Kilo Code.
OpenRouter is a unified API for AI models: 500+ models from 80+ providers, including Anthropic, OpenAI, Google, Meta, Mistral, and Microsoft, all behind one OpenAI-compatible interface. Because routing is distributed, a failing provider falls back to another automatically, and edge infrastructure keeps latency low. Billing is credit-based rather than per-provider subscriptions, so the same balance works across every model, and custom data policies let you control which models and providers ever see your prompts. It also surfaces live pricing and throughput per provider, so you can compare the real cost of the same model across hosts. The platform reports 200T+ monthly tokens, 10M+ users, and 250k+ apps built on it, including Replit, Hermes Agent, and Kilo Code.
Tags: AI, API, Developer Tools, LLM
Try OpenRouterYou buy credits that work across any model or provider, instead of holding a subscription with each vendor. Per-token prices vary by model and are shown alongside each one.
The API is OpenAI-compatible, so most integrations work by changing the base URL and key. Switching models is then a string change rather than a rewrite.
Requests fall back to another provider serving the same model automatically, which is the main reason teams route through OpenRouter rather than calling vendors directly.