Stripe buys OpenRouter for more than $7 billion

The payments specialist got its hands on the gateway that directs queries to more than 400 AI models, valued at $1.3 billion three months earlier.

On August 16, 2026, Stripe closed the acquisition of OpenRouter for more than $7 billion. Founded in 2023 by Alex Atallah, former co-founder of OpenSea, the company operates a gateway that allows a developer to interrogate more than 400 different AI models through a single interface, arbitrating between cost, latency and quality depending on the task. It claims about 8 million developers users.

The price paid marks a spectacular surge: OpenRouter had completed a round table a few months earlier, which valued it $1.3 billion, after raising in total more than 150 million from CapitalG, Andreessen Horowitz and Menlo Ventures. The Wall Street Journal had mentioned discussions around $10 billion before the operation ended.

For Stripe, the challenge is to position itself on the billing layer of AI transactions. Each model call is a micro-payment to measure, route and refactor: by absorbing OpenRouter, the payment group settles precisely where these flows flow, as companies seek to contain the invoice of their deployments.