OpenRouter aggregates more than 500 models from over 80 providers behind one API and one bill, routing across providers for better prices and uptime. It reports 600 trillion+ monthly tokens and 10 million+ users.
Its catalog includes free endpoints - models with a :free variant that cost nothing within daily rate limits, among them the Venice Uncensored Dolphin Mistral 24B edition. That makes it a practical way to try less-restricted open-weight models in a hosted setting, though free tiers carry limits and prompts go through the hosting providers.
