Stripe has confirmed it is acquiring OpenRouter, the AI model-routing startup, for a reported $7.5 billion, a huge jump from its $1.3 billion valuation just three months earlier. A leaked letter from Stripe's founders, Patrick and John Collison, jokingly cited the "singularity" as their rationale, but the real drivers appear to be the growing overlap between OpenRouter's developer customer base and Stripe's own, plus a strategic push into managing AI-related expenses rather than just processing incoming payments.

Of the total price, OpenRouter's founders will reportedly receive $1.5 billion, with investors sharing the remaining $6 billion, according to the New York Times. Stripe reportedly beat out other bidders, including Databricks, to secure the deal, which is expected to close within weeks; OpenRouter has said it will continue operating independently, with its "product, mission, and current commitments" unchanged. Stripe says 88% of the Forbes AI 50 and all of Brex's fastest-growing startups already use its products, and analysts view the purchase as an attempt to embed Stripe into AI-era capital flows, joining rivals such as Databricks, Rippling and Ramp in building AI expense-management tools.