Stripe clinches over $7 billion deal to buy AI firm OpenRouter

Stripe Inc. has locked in an agreement to buy OpenRouter Inc. for more than $7 billion, according to people familiar with the deal. The price could still move, but even the reported number marks a huge jump from the startup’s recent $1.3 billion valuation.

OpenRouter is not one of the model makers grabbing headlines. It sits one layer above them, helping companies route work across hundreds of AI models and pick whichever option is cheapest or best for the job. That pitch is suddenly very attractive, because AI bills are getting a lot more scrutiny.

Founded in 2023, the New York-based company says it serves 8 million developers and gives access to more than 400 models. It also helps customers set up backups when a model fails and see which options are being used across the wider tech world. That makes it useful for teams building agentic software, where switching between providers and data sources is part of the job.

Stripe is best known for payments, but this deal would push it deeper into AI at exactly the moment businesses are hunting for cost control. OpenRouter had already drawn backing from CapitalG, Andreessen Horowitz and Menlo Ventures, and it has raised more than $150 million so far. The company’s rise also reflects a messy truth in AI: the flashiest models are not always the ones companies can afford to use everywhere.

The Wall Street Journal had earlier said Stripe was in talks to buy OpenRouter for about $10 billion. Stripe wouldn’t comment beyond saying it does not respond to rumors or speculation, and OpenRouter also declined to comment. The final price may change, but the direction is clear: the plumbing around AI is becoming just as valuable as the models themselves.