Who founded OpenRouter?

OpenRouter was founded by Alex Atallah, Louis Vichy in 2023.

Who are OpenRouter's investors?

OpenRouter's investors include Andreessen Horowitz, CapitalG, Menlo Ventures, Raptor Group, Soma Capital, Transpose Platform Management, Databricks Ventures, MongoDB Ventures and 5 more.

How much funding has OpenRouter raised?

OpenRouter has disclosed $143.1M raised across 2 rounds.

Where is OpenRouter headquartered?

OpenRouter is headquartered in New York, US.

OpenRouter

Unicorn exit · $7.5B

New York, US · Founded 2023 · Delaware corporation · 45 employees · 15 known investors

Find your way into OpenRouter

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Acquisition announced by Stripe August 2026 · terms undisclosed — press reports $7-8B, most precisely $7.5B per NYT · source ↗

OpenRouter operates an AI gateway that allows developers to access and compare hundreds of language models from multiple providers in a single platform. The service eliminates vendor lock-in while offering improved pricing, uptime, and reliability for companies and developers.

AI & Machine Learning Cloud Computing Developer Tools

Founders & leadership

OpenRouter was founded in 2023 by Alex Atallah and Louis Vichy.

Alex Atallah CEO, Co-FounderAlex Atallah is co-founder and CEO of OpenRouter, an AI gateway that lets developers access and compare language models from multiple providers; he founded the company in early 2023. He previously co-founded the NFT marketplace OpenSea, where he helped grow the platform's monthly volume between 2017 and 2022.

Louis Vichy Co-FounderCo-Founder of OpenRouter

Board

Christopher ClarkBoard director

Matthew Murphy Board directorPartner at Menlo Ventures

Anjney Midha Board directorGeneral Partner at Andreessen Horowitz

Investors · 15

Andreessen Horowitzlisted by Andreessen HorowitzMenlo Park · $500K – $50Mvia Anjney Midha · board

How we know: a16z's portfolio · a partner's Signal profile · board seat on SEC Form D · offering press articles · kucoin.com · open dataset · 5k.vc investor directory · Not right? Tell us

CapitalGlisted by CapitalGSan Francisco · $75M – $100M

How we know: CapitalG's portfolio page · a partner's Signal profile · offering press articles · businesswire.com · open dataset · 5k.vc investor directory · Not right? Tell us

Menlo Ventureslisted by Menlo VenturesSan Francisco · $1M – $20Mvia Matt Murphy · led

How we know: Menlo Ventures's portfolio page · offering press articles · kucoin.com · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us

Raptor Grouplisted by Raptor GroupMiami Beach

Soma Capitallisted by Soma CapitalSacramento · $100K – $300K

How we know: Soma Capital's portfolio page · somacap.com · open dataset · 5k.vc investor directory · Not right? Tell us

Transpose Platform Managementlisted by Transpose Platform ManagementSan Francisco

How we know: Transpose Platform Management's portfolio page · Not right? Tell us

Databricks VenturesreportedSan Francisco

How we know: offering press articles · kucoin.com · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us

MongoDB Venturesreported

How we know: kucoin.com · Not right? Tell us

NVIDIAreportedSanta Clara

How we know: open dataset · 5k.vc investor directory · Not right? Tell us

Pace CapitalreportedNew York

How we know: offering press articles · openrouter.ai · Not right? Tell us

Sequoia CapitalreportedMenlo Park · $100K – $50M

How we know: open dataset · 5k.vc investor directory · Not right? Tell us

ServiceNow VenturesreportedSanta Claravia Yoni Douek · inferred

How we know: offering press articles · kucoin.com · Not right? Tell us

Snowflake VenturesreportedMenlo Park · $1M – $20M

How we know: offering press articles · kucoin.com · open dataset · 5k.vc investor directory · Not right? Tell us

Also in the syndicate · 2

AMP PBCNVentures

Reported raises · per SEC filings

Form D private placements

$143.1M disclosed across 2 rounds · 2025–2026

▶$113.5MraisedJul 2026 · 20 investors · Other

Rule 506(b)

OpenRouter raises $113M Series Bopenrouter.ai · May 2026

OpenRouter Raises $113M Series B — OpenRouter Blogopenrouter.ai · May 2026

Officers, directors & promoters on the filing

Alexander AtallahExecutive Officer, Director
Christopher ClarkExecutive Officer, Director
Matthew MurphyDirector
Anjney MidhaDirector

Offering amount: $117M
Amount sold: $113.5M
First sale: Mar 2026
Incorporated: Corporation, Delaware, 2023
Federal exemptions: 06b

Full filing on SEC EDGAR ↗

▶$29.6MraisedAug 2025 · 30 investors · Other

Rule 506(b)

Officers, directors & promoters on the filing

Christopher ClarkDirector
Alexander AtallahExecutive Officer, Director
Matthew MurphyDirector
Anjney MidhaDirector

Offering amount: $47.6M
Amount sold: $29.6M
First sale: May 2025
Incorporated: Corporation, Delaware, 2023
Federal exemptions: 06b

Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Valuation · disclosed

Disclosed events

$1.3Bvaluation at Series BMay 2026

filing ↗

Source: SEC prospectus filings, and round valuations the company or its investors disclosed — follow each entry's link for the claim.

Founder mafia

2 people who came through OpenRouter went on to found or lead other companies.

Alex BangashInvestorFounded Transpose Platform Management +1 Alex AtallahFounderFounded Opensea

Related companies · 7

Hugging FaceHugging Face is a collaboration platform that hosts and provides access to machine learning models, datasets, and applications. It offers both open-source tools for the ML community and paid compute and enterprise solutions for teams building AI applications.

OpenAIOpenAI is an AI research and deployment company focused on developing artificial general intelligence (AGI) with emphasis on safety and beneficial outcomes for humanity.

DataCampDataCamp is a learning platform for teams that teaches data and AI skills through hands-on coursework accessible via web browser and mobile app. It serves enterprise customers and development teams seeking to build technical capabilities.

OllamaOllama provides a platform for building with and running open-source language models locally and in the cloud. It enables developers to quickly deploy and access models like Claude Code and OpenClaw.

LLM Statsllm-stats.com provides open, reproducible evaluation and benchmarking infrastructure for large language models and AI systems. The platform aggregates 200+ benchmarks and enables performance comparisons across frontier AI models to support informed decision-making by researchers, enterprises, and model developers.

NVIDIANVIDIA designs GPUs, AI computing hardware, and software platforms for AI development, data centers, autonomous vehicles, and robotics, serving developers, researchers, and enterprises. Its offerings include AI models, power architecture for AI factories, and compute infrastructure used across industries such as manufacturing, healthcare, and automotive.

Together AITogether AI builds a full-stack platform for production AI systems, serving teams that need to deploy and scale machine learning models reliably. The company provides infrastructure and tools for AI development and deployment.

Companies working in the same space as OpenRouter.

In the news

OpenRouter raises $113M Series Bopenrouter.ai · May 2026

OpenRouter Raises $113M Series B — OpenRouter Blogopenrouter.ai · May 2026

OpenRouter more than doubles valuation to $1.3B in a year | TechCrunchtechcrunch.com · May 2026

Frequently asked questions

What does OpenRouter do?: OpenRouter operates an AI gateway that allows developers to access and compare hundreds of language models from multiple providers in a single platform. The service eliminates vendor lock-in while offering improved pricing, uptime, and reliability for companies and developers.
Who founded OpenRouter?: OpenRouter was founded by Alex Atallah, Louis Vichy in 2023.
Who are OpenRouter's investors?: OpenRouter's investors include Andreessen Horowitz, CapitalG, Menlo Ventures, Raptor Group, Soma Capital, Transpose Platform Management, Databricks Ventures, MongoDB Ventures and 5 more.
How much funding has OpenRouter raised?: OpenRouter has disclosed $143.1M raised across 2 rounds.
Where is OpenRouter headquartered?: OpenRouter is headquartered in New York, US.