Stripe to Acquire AI Gateway OpenRouter for Over $7 Billion

Stripe has finalized a deal to acquire OpenRouter, the AI model routing gateway, for more than $7 billion, according to Bloomberg. The acquisition, arriving just months after OpenRouter raised a $113 million Series B at a $1.3 billion valuation, marks one of the largest exits in AI infrastructure to date and hands Stripe ownership of the layer where developers actually spend money on AI.

What happened

Stripe reached an agreement to buy OpenRouter, the startup that lets developers access more than 400 AI models through a single API, according to TechCrunch. OpenRouter CEO Alex Atallah, who previously co-founded the NFT marketplace OpenSea, has described the company as "the equivalent of Stripe for AI" - a neutral routing layer that prevents vendor lock-in across OpenAI, Anthropic, DeepSeek, Alibaba Qwen, and other providers.

The Wall Street Journal first reported the talks last month, with the price reportedly near $10 billion. Bloomberg now reports the deal closed at more than $7 billion - roughly five times OpenRouter's $1.3 billion valuation from its May funding round, which drew Sequoia, Andreessen Horowitz, Menlo Ventures, and Alphabet's Capital G.

Why it matters

OpenRouter has scaled to a claimed 8 million global users by becoming the neutral marketplace where developers compare models on cost, speed, and capability. AI Weekly reports its annualized revenue climbed from roughly $19 million at the end of 2025 to $50 million by March 2026, on the back of roughly 25 trillion tokens routed per week.

For Stripe, the deal converts an existing payments relationship into ownership of the metering and billing surface for AI inference. Stripe was already OpenRouter's payment processor; now it owns the routing layer itself.

Builder impact

For AI builders, the acquisition signals that model routing and cost management are becoming core infrastructure rather than a commodity add-on. Owning the gateway lets Stripe bundle payments, metering, and model access into a single surface - while raising open questions about whether a billing company can stay neutral when it also controls which models get routed. Teams already leaning on multi-model routing to control inference costs, a pattern we explored in our look at Kog's GPU inference push, should watch closely as the "Stripe for AI" becomes part of actual Stripe.