Access 50+ Free AI Models with One API Key OpenRouter is a unified API gateway that gives you access to hundreds of AI models — including many free ones — through a single API key and a single OpenAI-compatible endpoint. Instead of signing up separately for Gemini, DeepSeek, Llama, Mistral, and a dozen others, you manage everything in one place. In this guide, we’ll cover the best free models on OpenRouter, how to use them in Python, how to connect OpenRouter to OpenClaw for a free AI agent, and how it compares to going direct with each provider. Why Use OpenRouter?…