OpenRouter

Summary active Updated May 27, 2026

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Location New York, NY
Founded 2023
Latest Stage Series B
Total Raised $153M

Investors

andreessen-horowitz series-a (2025)
menlo-ventures series-a (2025)
capitalg series-b (2026)
andreessen-horowitz series-b (2026)
menlo-ventures series-b (2026)
Matt Murphy Early
Deedy Das 2025 (2025)
Andreessen Horowitz series-a (2025)
Menlo Ventures series-a (2025)
CapitalG series-b (2026)
Andreessen Horowitz series-b (2026)
Menlo Ventures series-b (2026)

Founders

Alex Atallah CEO & Co-Founder

About

OpenRouter is a New York-based AI model exchange that lets developers and enterprises access, route, and optimize across hundreds of AI models through a single API 1. Founded in 2023 by Alex Atallah (a co-founder of OpenSea), the platform sits between application developers and the major model providers, abstracting away differences in pricing, capacity, and capability 12.

By May 2026, OpenRouter was processing roughly 25 trillion tokens per week — about 100 trillion per month — representing a 5x increase from six months prior 13.

Funding History

Date Round Amount Lead Co-investors
2025-06 Series A $40M Andreessen Horowitz Menlo Ventures 1
2026-05-26 Series B $113M CapitalG NVentures, ServiceNow Ventures, MongoDB Ventures, Snowflake Ventures, Databricks Ventures, Andreessen Horowitz, Menlo Ventures 123

The Series B valued the company at approximately $1.3B post-money, more than double its $547M post-money valuation a year earlier 1.

What Investors Say

No independently sourced investor quotes found at this time.

What Founders Say

No independently sourced founder testimonials found at this time.

Sources


  1. “OpenRouter more than doubles valuation to $1.3B in a year,” TechCrunch, May 26, 2026. https://techcrunch.com/2026/05/26/openrouter-more-than-doubles-valuation-to-1-3b-in-a-year/

  2. “OpenRouter raises $113M to bring order to enterprise AI inference routing,” SiliconANGLE, May 26, 2026. https://siliconangle.com/2026/05/26/openrouter-raises-113m-bring-order-enterprise-ai-inference-routing/

  3. “OpenRouter Raises $113 Million CapitalG-led Series B as Weekly Volume Explodes to 25T Tokens,” Yahoo Finance / PR Newswire, May 26, 2026. https://finance.yahoo.com/sectors/technology/articles/openrouter-raises-113-million-capitalg-131500093.html