OpenRouter API
Access multiple AI models from OpenAI, Anthropic, Google, Meta, and more through a unified API with competitive pricing and automatic routing.
Verified
2026-02-03
At a glance
Essential information
About
OpenRouter provides a unified gateway to access over 100 AI models from providers like OpenAI, Anthropic, Google, Meta, and open-source models. Get competitive pricing, automatic fallback, and model routing through a single OpenAI-compatible API.
What you can build
- Multi-model AI applications with fallback
- Cost-optimized AI services
- Model comparison and benchmarking tools
- AI assistants with model selection
- Applications requiring model diversity
- Prototype with multiple models easily
- Production apps with automatic failover
- Budget-conscious AI products
Pricing
View Pricing| Free tier | Yes |
| Starting from | $0.02/M tokens |
| Notes | Pay-per-use with credits. Pricing varies by model. Some models offer free tier. Supports model fallback and cost optimization. |
Last updated: 2026-02-03. Please refer to the official pricing page as pricing may have changed.
Alternatives
Similar APIs you might consider
Authentication & Limits
View Docs- Auth type
- api_key
- Rate limits
- Based on account credits and selected model; generous limits.
Steps to get API key
- 1Sign up at openrouter.ai
- 2Add credits to account (some free models available)
- 3Navigate to Keys section
- 4Generate new API key
- 5Use key in Authorization header as Bearer token
FAQ
Unified API for 100+ models from multiple providers. Single integration, automatic fallback, and often lower prices than direct access.
