Stripe agrees to buy AI model-router OpenRouter in mostly-stock deal above $7 billion

Stripe has agreed to acquire OpenRouter, the AI model-routing marketplace, in a mostly-stock deal, OpenRouter said on August 19, 2026 as it announced it is joining Stripe. Reports peg the price above $7 billion, and the transaction is expected to close within weeks.

The deal folds a fast-growing multi-model API gateway into the payments company. OpenRouter gives developers a single interface to route requests across competing AI models and choose on price, speed or capability. Stripe already handles the billing for much of the AI economy and can now meter the tokens flowing through it.

OpenRouter processes more than 10 trillion tokens a day across over 400 AI models and serves more than 10 million developers and companies, it said. Inference volume has grown roughly tenfold a year since the company was founded, and the team numbers about 90 people.

The price is unsettled. Initial reports pegged the deal at more than $7 billion, a roughly 5.4-times markup on the $1.3 billion valuation OpenRouter reached in its May 2026 Series B. Stripe’s own H1 2026 investor letter later valued the acquisition at more than $8 billion, mostly in stock.

Stripe framed the purchase as a way to help businesses optimize token routing and usage, according to its newsroom announcement. OpenRouter said it will keep operating independently under its own name, mission and roadmap after the deal closes.

For Stripe, buying the router is a bet that metering AI usage becomes as routine as processing a card payment. For OpenRouter’s customers, the open question is whether a neutral marketplace stays neutral inside a payments giant.