Organisation
OpenRouter
A unified API and marketplace that routes requests across many LLM providers through a single endpoint.
OpenRouter is a US company that runs a unified API and marketplace for large language models, letting developers reach hundreds of models from different providers through a single endpoint and billing account and routing each request to whichever provider is cheapest or fastest. Founded in 2023 by Alex Atallah, a co-founder of the NFT marketplace OpenSea, it positions itself as a neutral routing layer between application builders and the labs, and its published usage rankings have become a widely cited read on which models developers actually use. It raised a Series B led by CapitalG that reporting put at a valuation of about $1.3bn, and in 2026 was the subject of reports that the payments company Stripe was in talks to acquire it.
- Category
- Open source & ecosystem
- Founded
- 2023
- HQ
- New York, US
- Funding
- ~$1.3bn valuation (Series B led by CapitalG); ~$174m raised
- Key people
- Alex Atallah
Appears alongside
Featured in threads
Tracks
- Open weights & ecosystem 2
- Models & capabilities 1
- Money & business 1
Zhipu reveals GLM-5.3-Flash after testing it anonymously online for a week
Priced at roughly a tenth of GLM-5.2 and released under an MIT licence, it is the first natively multimodal model in the GLM-5 series.
Models & capabilities · Open weights & ecosystem
Stripe confirms its acquisition of OpenRouter
Bloomberg had reported the deal at more than $7bn three days earlier; OpenRouter was valued at $1.3bn in a Series B round only three months before.
Money & business · Open weights & ecosystem