OpenRouter, founded in 2023, operates a unified interface and marketplace that provides developers with seamless access to over 300 large language models from more than 60 providers through a single API. The platform is designed to eliminate vendor lock-in, offering features such as intelligent routing between models, automatic fallbacks, and consolidated billing. Its core product processes over 100 trillion tokens annually.
The company's technology operates across the domains of AI/ML, API integration, model routing, and cloud infrastructure. It serves a global user base of over five million, primarily within the software development and enterprise technology sectors. OpenRouter's infrastructure is built to handle significant scale, routing requests across a broad ecosystem of model providers.
OpenRouter has raised $40 million in Series A funding from investors including Andreessen Horowitz, Menlo Ventures, and Sequoia Capital. The company maintains a global geographic presence.