OpenRouter Raises $113M Series B to Power AI Model Routing
OpenRouter, the AI model exchange, has announced a $113 million Series B led by CapitalG, Alphabet’s independent growth fund. The OpenRouter Series B funding also drew participation from NVentures, ServiceNow Ventures, MongoDB Ventures, Snowflake Ventures, and Databricks Ventures, alongside existing backers Andreessen Horowitz and Menlo Ventures.
A Platform Built for the Multi-Model Era
The company’s valuation now exceeds $1 billion. That milestone reflects staggering growth under the hood. OpenRouter’s weekly token volume has surged from 5 trillion to 25 trillion tokens a 5x jump in just six months as enterprises accelerate AI deployment across multiple models and providers.
OpenRouter operates as a universal API, giving developers access to more than 400 large language models from providers including OpenAI, Anthropic, Google, and over 60 other labs through a single endpoint. Rather than juggling separate integrations, companies route all their AI traffic through one layer that automatically optimizes for cost, speed, and performance.
The platform serves over 8 million global users, ranging from AI-native startups to large enterprises, and its usage data has become a widely referenced benchmark for real-world model adoption and pricing dynamics.
The OpenRouter Series B funding comes as enterprise AI spending reaches a tipping point. A 2026 Deloitte study found that 67% of enterprises are already consuming over one billion tokens per month, and most are no longer betting on a single AI model to carry the load.
OpenRouter was founded in 2023 by Alex Atallah, co-founder and CTO of OpenSea, alongside Louis Vichy. The company plans to use the fresh capital to expand its routing, governance, and optimisation capabilities as production AI deployments grow more complex.
