Stripe confirmed Wednesday that it will acquire OpenRouter. The company did not disclose the purchase price, but sources told The New York Times it paid $7.5 billion.
This is a significant increase from OpenRouter’s $1.3 billion valuation in May. To put this price into context, the founders alone will reportedly receive $1.5 billion from this sale, which is more than the entire startup was valued at just three months ago. Investors will receive the remaining $6 billion, according to the NYT. Stripe reportedly had to outbid other companies interested in the fast-growing startup, including Databricks.
But the question is: What does the payments giant want from a startup that routes prompts between different AI models?
The short and funny answer is “singularity,” according to a leaked letter from Stripe’s founders to investors regarding the deal.
“While it is a vague and perhaps overused term, we have determined that January 1st marks the beginning of the singularity, and we have acted accordingly,” they wrote in the letter (published by Eric Newcomer and verified by TechCrunch).
The singularity is thought to mean the point at which humans and the technologies we create merge to form a new species. This is clearly an ironic reference (as Patrick Collison acknowledged when he used the term at his company’s conference in April). We’re pretty sure Stripe’s founders, brothers Patrick and John Collison, didn’t think humans started turning into the Borg eight months ago.
But they cite the economic lift AI is bringing to Stripe. By leveraging AI, more companies are being founded and more companies are using Stripe’s products. Stripe says 88% of the Forbes AI 50 use its products, including OpenAI and Anthropic, and 100% of Brex’s fastest-growing startups. No one knows how AI and agents will change the future economy, but we are all certain that it will change dramatically.
Still, that still doesn’t explain why Stripe would want a company primarily known for helping developers manage the use of their models. Stripe’s founders acknowledged that their customer bases overlap.
“OpenRouter is extremely useful for all developers, and Stripe is one of the largest developer platforms in the world,” the founders wrote in the letter. Just using OpenRouter internally would probably bring significant benefits to Stripe, and would certainly make it easier to deploy model-agnostic agent products in the future.
OpenRouter will likely continue to operate independently after the deal closes in the coming weeks, but the company promised in a blog post that “our product, mission, and current commitments remain the same.”
Still, most of Stripe’s big acquisitions to date have been related to helping people collect and manage incoming cash. Purchasing OpenRouter also looks like a move to the other side of the ledger: expense management, including AI expenses.
The acquisition is “Stripe’s deliberate attempt to insert itself into the middle of capital flows in the AI era,” said PitchBook research analyst Franco Granda.
The company joins a rare group of companies that are also venturing into token expense management. Databricks has developed its own AI gateway. Rippling just launched a service focused on employee AI spending and ROI. Ramp just launched a service, also for AI expense management. And the list goes on.
For Stripe, purchasing the grandfather of its popular AI gateway for developers provides insight into how programmers are using AI. But it will also impact the demand for AI itself. OpenRouter gives “a degree of power over Frontier Labs itself and suppliers like hyperscalers and neoclouds,” Granda said.
It might not be Borg, but it’s a router for payments and token expense management and models? That’s a lot of power.
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