What is OpenRouter
OpenRouter gives developers a single interface to reach hundreds of large language models from dozens of providers. It removes the need to juggle separate accounts across AI platforms. Teams pay only for what they use with no recurring subscriptions.
Overview
OpenRouter is a backend API layer that connects your application to large language models from OpenAI, Anthropic, Google, and many other providers. It works with the standard OpenAI SDK, so existing integrations require minimal code changes. Requests route through distributed infrastructure built to keep latency low and availability high. Pricing operates on a credit system with no fixed monthly fees, which can lower costs for teams with variable usage. The platform is designed for developer integration and does not function as a standalone chatbot or AI application on its own.
How to use OpenRouter
Developers sign up, purchase credits, and generate an API key from the dashboard. They then point their existing OpenAI-compatible SDK or HTTP client at the OpenRouter endpoint and begin routing requests to whichever model suits the task. Credits apply across all available models, so teams can switch providers without changing billing setups.
Key Features
- Single API for hundreds of LLMs
- Compatible with the OpenAI SDK
- Distributed infrastructure for low latency
- Credit-based billing with no subscriptions
- Access to models from 60+ providers
- Custom data protection policies
- Fast API key provisioning
- High availability across regions
Ideal Customer Profile
Developers and engineering teams at startups and growing companies who need flexible, multi-model AI access through one integration.
Best for: Seed, Series A, SMB