Stripe finalizes its OpenRouter agreement for an estimated $7.5 billion or more.

      Stripe has agreed to acquire OpenRouter, a startup that provides software to help companies manage their spending across numerous AI models. The payments company confirmed the acquisition on Wednesday, making official a deal that had been reported earlier this month.

      Neither Stripe nor OpenRouter disclosed the financial details of the transaction. However, various reports yield differing figures. The New York Times reported that Stripe is purchasing OpenRouter for $7.5 billion, based on information from a source familiar with the terms, which includes $1.5 billion for OpenRouter’s founders and $6 billion for its investors. In contrast, Axios, citing its sources, estimates the price to be over $8 billion, primarily in stock.

      Regardless of the exact amount, it represents a significant increase in value. Investors had valued OpenRouter at approximately $1.3 billion during a funding round earlier this year, according to Bloomberg. Major investors in the company include Andreessen Horowitz, Sequoia Capital, Nvidia, and CapitalG, one of Alphabet’s venture arms. If the New York Times' figure is accurate, the investors are cashing out at several times that valuation, just months later.

      About OpenRouter

      OpenRouter operates as a single gateway to the AI market. With one interface, developers can access more than 400 models from over 80 providers, allowing them to compare and route requests to the most suitable model based on cost, speed, and reliability. The company claims to process more than 10 trillion tokens daily and caters to over 10 million developers and businesses.

      This scale is central to OpenRouter's business model. Launched in 2023 with a limited number of models, its token volume has grown significantly, doubling approximately every few months, according to its investors. Many new prominent models are also introduced on the platform first, and AI researcher Andrej Karpathy referred to it as the “transfer switch” of AI, highlighting its role in managing data flow between systems.

      Tokens represent the billing unit for AI models, approximately a fragment of a word. As AI usage increases among companies, their spending on tokens also rises, making routing an essential method for managing costs. The strategy involves directing simpler tasks to less expensive, often open-source models, while reserving costly advanced models for more complex tasks. OpenRouter also enables customers to switch to a backup model when a provider encounters issues.

      The appeal of this routing method has grown with the emergence of robust open-source models, many stemming from China. The Times mentioned Kimi, from the startup Moonshot AI, as an example. Models like this have spurred companies' interest in utilizing different models for various tasks.

      Why Stripe is interested

      Stripe, already positioned between businesses and their finances by optimizing payments, authorizations, and fraud prevention, views OpenRouter as a parallel solution for managing AI expenditures. CEO Patrick Collison stated that tokens represent "the central currency for companies building with AI," asserting that together, they would assist businesses in using their tokens more efficiently.

      The acquisition is part of Stripe's expansion into the AI sector, which includes a Token Billing product launched last year. OpenRouter's founder, Alex Atallah, emphasized that intelligence would be “multi-model,” as no single model excels at all tasks, necessitating a neutral layer to manage them. Atallah is also a co-founder of the NFT marketplace OpenSea.

      Neutrality is key to OpenRouter's proposition, which raises critical questions regarding the acquisition. The company claims its routing decisions prioritize the user rather than favor any specific model or provider, a principle that it assures will remain intact under Stripe’s ownership. Stripe further noted that OpenRouter is already utilized by companies such as Nvidia, Zoom, and the coding startup Lovable.

      OpenRouter intends to continue its operations as it currently does, maintaining the same name, product, and roadmap. Founded in 2023, the company has grown rapidly. The deal still requires approval under standard closing conditions and is expected to finalize in the upcoming weeks.

      Stripe's broader strategy

      As one of the largest private tech firms, Stripe has opted to stay off the public markets, with its founders expressing a preference for remaining private. This approach aligns with what the company refers to as a pivotal moment, as detailed in a letter to investors this week. The company describes the beginning of the year as “the beginning of the singularity,” indicating a significant turning point. Reportedly, first-half revenue has surged 41 percent compared to the previous year, and 88 percent of the Forbes AI 50, including OpenAI and Anthropic, build on Stripe's platform.

      A share sale by employees in February valued Stripe at $159 billion, a jump from $91.5 billion the previous year, as reported by Axios. Furthermore, the company is pursuing a substantial acquisition, a bid for PayPal alongside investment firm Advent, estimated at around $53 billion.

      The market for routing that Stripe is entering is becoming increasingly competitive. Smaller companies like Switchboard,