Stripe has finalized an agreement to acquire OpenRouter for more than $7 billion, according to Bloomberg. The deal values the AI model gateway at a 5.4x premium over its $1.3 billion Series B valuation from just three months ago in May 2026, when OpenRouter raised $113 million led by Alphabet's CapitalG with participation from Sequoia, Andreessen Horowitz, and Menlo Ventures.
OpenRouter operates as a unified API gateway providing developers with access to over 400 AI models through a single interface. The platform has scaled to 8 million global users and routes model requests based on cost, speed, and capability, processing 100 trillion tokens per month as of recent reports—a fivefold increase in just six months. CEO Alex Atallah previously described the service as 'the Stripe for AI,' positioning it as avoiding vendor lock-in.
For Stripe, the acquisition deepens its position in AI commerce infrastructure following earlier deals including Metronome (usage-based billing) in late 2025 and Bridge (stablecoin infrastructure) in February 2025. Stripe already handled OpenRouter's payments through its invoicing and tax tools, giving it direct visibility into the startup's growth trajectory. The integration places Stripe at the intersection of model routing, payment processing, and developer spend—critical as AI agents increasingly initiate autonomous transactions.
The deal raises questions about OpenRouter's historical neutrality. A July 2026 CNBC investigation found that Chinese-origin models captured 46% of US enterprise token usage on OpenRouter. As the gateway consolidates under Stripe's ownership, the company faces regulatory and trust considerations around how it manages routing policies and data access for competing model providers.