Stripe is in talks to buy buzzy AI-model marketplace OpenRouter for ~$10bn – Wall Street Journal

Stripe is in talks to acquire OpenRouter, a buzzy startup that helps developers choose between artificial-intelligence models, according to Wall Street Journal. „A transaction could be announced soon, though the talks could still fall apart or another suitor could emerge, the people said. The exact price being discussed couldn’t be learned, but some of the people said the business could fetch about $10 billion in a sale.” – WSJ reports.

Simon Taylor, Founder Fintech Brainfood, commented:

In May, OpenRouter was valued at $1.3bn. That’s a near-8x markup on the last round valuation that fast reads like a HUGE over payment.

Except Stripe tends to acquire with a long-term perspective, and is the most AI-forward payments company by far. Remember Stripe already collects OpenRouter’s payments. They can see the revenue trend.

So what is the strategic rationale? This is very clearly not pure payments.

OpenRouter is a single API in front of hundreds of AI models, with 5m+ developers using it to compare prices, switch providers, and route each request to the cheapest model that can do the job. For example, if Opus is too expensive, send that task to Gemini 3.5 Flash or Deepseek.

For an AI startup, tokens are usually the biggest input cost, prices move constantly, and new models ship every week. OpenRouter is where that spend gets managed.

Stripe grew TPV 30% YoY, and is accelerating. OpenAI, Anthropic and all of the AI companies default to Stripe. They’re all about betting on the next tech category and serving it.

The recent acquisition of metronome shows an expanding reach into the AI ecosystem:

First Stripe Payments collects an AI company’s revenue (money in)

Then Metronome (bought in December, reported ~$1bn) meters the usage that drives it. Customers included OpenAI (money in)

Now OpenRouter routes the tokens all of it runs on, to the best price / model. (spend)

If you’ve bought the metering, next up buy the routing.

Stripe earns on money coming INTO AI companies today. OpenRouter puts it on the money going OUT: the model bill.

Both sides of the P&L.

Stripe built a $159bn company taking basis points on payment flows.

OpenRouter takes a cut of token flows. Same business model, new commodity.

Ramp is working toward the same destination from the spend side. Stripe is arriving from the money-in side.

(Per WSJ, talks could still collapse and other bidders are circling.)

Most PSPs are competing for the AI company’s checkout. Stripe is competing for the whole income statement.