OpenAI/Anthropic/Google/OpenRouter APIs

Access the industry's leading LLMs through a unified, high-performance interface.

Standardize your AI stack with a single integration point for OpenAI, Anthropic, and Google. OpenRouter provides a high-availability gateway to models like GPT-4o, Claude 3.5 Sonnet, and Gemini 1.5 Pro via an OpenAI-compatible API (base_url: https://openrouter.ai/api/v1). This setup eliminates provider lock-in and simplifies key management while offering competitive pricing and automatic fallbacks. Whether you are scaling production traffic or benchmarking the latest frontier models, these APIs deliver the low-latency inference and structured output capabilities required for modern agentic workflows.

https://openrouter.ai/docs