Stripe buys AI routing startup OpenRouter for a reported $7.5B
Payments giant Stripe has confirmed acquiring OpenRouter for a reported $7.5 billion, far above the startup's $1.3 billion valuation from May. A leaked founders' letter frames the deal around AI's growing role in the economy, jokingly citing the 'singularity.'
Stripe confirmed on Wednesday that it is acquiring OpenRouter, though it did not disclose the purchase price. Sources told the New York Times the deal was worth $7.5 billion — a sharp jump from OpenRouter's $1.3 billion valuation just three months earlier, in May. Reportedly, OpenRouter's founders alone will receive $1.5 billion from the sale, while investors will split the remaining $6 billion. Stripe is said to have outbid other suitors, including Databricks.
OpenRouter is known for helping developers route prompts between different AI models. In a leaked letter to investors, published by Eric Newcomer and verified by TechCrunch, Stripe founders Patrick and John Collison tied the acquisition to the so-called 'singularity' — the idea of humans merging with technology. The reference was largely tongue-in-cheek, echoing a term Patrick Collison had used earlier this year, but it underscores how seriously Stripe views AI's impact on its business.
Stripe says 88% of companies on the Forbes AI 50 list, including OpenAI and Anthropic, already use its products. The founders acknowledged significant overlap between Stripe's and OpenRouter's customer bases, and noted that using OpenRouter internally could help Stripe roll out future model-agnostic agentic products.
OpenRouter said in its own blog post that it will continue operating independently once the deal closes in a few weeks, with its product, mission and existing commitments unchanged. Analysts describe the acquisition as a strategic move by Stripe into AI expense management — a shift from its traditional focus on collecting incoming payments. Similar tools are being built by Databricks, Rippling and Ramp. The deal could give Stripe outsized influence not only over developers but over AI model providers, hyperscalers and cloud infrastructure companies as well.
