OpenRouter
OpenRouter puts one OpenAI-compatible API in front of 400+ models served by many providers, and falls back to another provider when one fails before any output reaches you. Per-model prices are documented as passed through from the provider without markup; the platform charges its fee when you buy credits. Next to chat it now documents dedicated endpoints for image generation, asynchronous video, text-to-speech, transcription and embeddings, all on the same base URL.





