Stripe is buying OpenRouter, the AI model marketplace and gateway, in one of the payments company’s largest moves into artificial intelligence infrastructure. CNBC reported that Stripe said Wednesday it plans to acquire the startup, while TechCrunch said Stripe confirmed the purchase. OpenRouter separately announced that it is “joining forces” with Stripe. The companies did not disclose financial terms. Bloomberg first reported that Stripe had finalized an agreement to acquire OpenRouter for more than $7 billion, citing people familiar with the matter. CNBC and TechCrunch later cited The New York Times reporting that the price is about $7.5 billion, including $1.5 billion allocated to OpenRouter’s founders. The price marks a sharp step-up from OpenRouter’s last reported private-market valuation. The Decoder and CNBC report that OpenRouter raised $113 million in May at about a $1.3 billion valuation. The Decoder names Sequoia, Andreessen Horowitz, Menlo Ventures, and Alphabet’s CapitalG among OpenRouter’s investors. OpenRouter’s core product is a single access layer for many AI models. Bloomberg describes the company as helping developers access, switch between, and optimize hundreds of models. OpenRouter says its service includes broad provider choice, model-agnostic observability, cost management, and routing designed to improve price, performance, and uptime. The startup says it now processes more than 10 trillion tokens per day across 400+ AI models for more than 10 million developers and companies. The Decoder’s earlier write-up reported more than 400 models and eight million users. OpenRouter says it has grown inference volume by at least 10x each year since its founding in early 2023. The strategic rationale, as described by the companies and the reports, centers on AI usage costs and model choice. CNBC reports that Stripe has been working with companies to optimize token costs and route tokens efficiently, and that Stripe sees model release and repricing cycles as making cost-performance management difficult. In a statement cited by CNBC, Stripe CEO Patrick Collison said Stripe is building “economic infrastructure for AI” and that OpenRouter will help businesses route requests and spend tokens efficiently. OpenRouter is also trying to reassure users that the acquisition will not immediately change how its platform works. In its announcement, the company said it will continue with the same name, mission, product, and roadmap, and that current integrations will not change. It also said routing decisions will remain based on what is best for users, not on a particular model, provider, or parent company. TechCrunch reports that OpenRouter appears set to operate independently after the deal closes, citing the startup’s own post, and frames the transaction as a move by Stripe beyond payments into AI expense management. The acquisition puts Stripe closer to the layer where developers choose models, manage inference costs, and route machine-generated workloads — a different but adjacent position to the financial infrastructure Stripe is already known for. Who benefits: OpenRouter’s investors and founders appear to benefit from the reported jump from a $1.3 billion May valuation to a $7 billion-plus exit. Stripe gains a developer-facing AI infrastructure asset tied to model choice and token-cost management. Who's exposed: Model providers may face a stronger intermediary if more developers route workloads through OpenRouter under Stripe. Current OpenRouter users are exposed to execution risk, though OpenRouter says the product, roadmap, name, and integrations remain unchanged.