OpenRouter

OpenRouter is an aggregation layer for LLMs: a single API and marketplace that routes requests across hundreds of models from dozens of providers, with unified billing, price and latency comparison, and automatic fallback. It has become a key piece of AI infrastructure for developers who want provider-agnostic access and real-time visibility into model pricing and performance.

OpenRouter launched in 2023 to solve a growing problem: with dozens of providers each serving many models at different prices and speeds, developers needed one interface rather than many integrations. It exposes an OpenAI-compatible endpoint that abstracts the underlying providers.

The platform lets developers compare price and throughput across providers for the same model, route to the cheapest or fastest option, and fall back automatically when a provider is degraded. Its public rankings of model usage and provider performance have become a widely cited barometer of what the market is actually running.

Because it aggregates demand, OpenRouter also serves as a distribution channel for smaller inference providers and new models. It is one of the clearest expressions of how the AI market is commoditizing model access — and its usage data feeds pricing intelligence across the industry.