What OpenRouter does
OpenRouter (openrouter.ai) is an AI inference “gateway” that provides a single, OpenAI-compatible API interface for accessing many model providers. It sits between applications/agents and upstream model providers, abstracting provider-specific integrations while offering model-agnostic observability and cost controls, plus routing and failover intended to improve price, performance, and uptime across providers.
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OpenRouter positions itself as a multi-model layer that reduces vendor lock-in for teams that want to switch among models and providers over time, and it has expanded beyond text to multimodal inference (e.g., audio, speech, transcription, embeddings, and video). In 2026, OpenRouter announced it is joining Stripe, stating that OpenRouter will continue operating as it is and that its product and roadmap will remain unchanged for existing integrations.