OpenRouter
One API for Any Model
New York, Remote · Founded 2023 · $188.0M raised
- Headquarters
- New York
- Employees
- 1–10
- Founded
- 2023
- Business Model
- B2B
- Website
- openrouter.ai
- Total Funding
- $188.0M
- Last Round
- $113.0M Series BMay 2026
- Rounds
- 8
About
OpenRouter is a unified AI gateway that provides developers and enterprises access to 300+ large language models from 60+ providers through a single API endpoint. Founded in early 2023, it has grown to serve over 5 million global users and processes 30 trillion tokens monthly. The platform eliminates vendor lock-in by offering better prices, higher uptime, and automatic fallback routing across model providers. Backed by Andreessen Horowitz, Menlo Ventures, and Sequoia Capital, OpenRouter raised $40 million to become the largest AI model marketplace for developers.
Summary
OpenRouter is an Infrastructure company based in New York, Remote, founded in 2023. It has raised $188.0M in total across 8 rounds, most recently a $113.0M Series B round in May 2026. Investors include Andreessen Horowitz, Menlo Ventures and CapitalG.
Tech & App Stack
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Funding History
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May 2026
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Seed through Series B — per-round amounts, valuations, and who invested in each round.
Investors
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