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OpenRouter
Unified API for 200+ AI models — route to the best model for each task with automatic fallbacks.
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OpenRouter provides a single OpenAI-compatible API that routes requests to 200+ AI models from OpenAI, Anthropic, Google, Meta, Mistral, and others. Switch between models without code changes, set automatic fallbacks, compare costs in real time, and only pay for what you use. Essential infrastructure for AI developers.
Key Features
- 200+ models from all major providers
- OpenAI-compatible API (drop-in replacement)
- Automatic fallback routing on model failures
- Real-time cost comparison across models
- Free models available (Llama 3, Gemma, etc.)
- Usage analytics and spend tracking
Pricing
- Free: Several free models available
- Pay-as-you-go: Competitive per-token pricing matching providers
Best For
AI developers and teams building LLM applications who want multi-model flexibility, automatic failover, and the ability to optimize cost vs. performance across dozens of models.
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