AI Gateway OpenRouter Raises $113M From Google and NVIDIA to Route Between Their Models
OpenRouter, a New York-based AI infrastructure startup, raised $113 million in Series B funding led by Google’s CapitalG and NVIDIA’s NVentures, valuing the company at $1.3 billion. The platform allows developers to route API calls across over 400 large language models, reducing operational complexity and inference costs by 30-50% for enterprises.
OpenRouter, a New York-based AI infrastructure startup, closed a $113 million Series B funding round on May 26, 2026, led by CapitalG, Alphabet’s growth fund, with participation from NVIDIA’s NVentures, ServiceNow Ventures, MongoDB Ventures, Snowflake Ventures, and Databricks Ventures. The round also included returning investors Andreessen Horowitz and Menlo Ventures, pushing the company’s valuation to approximately $1.3 billion—more than doubling its Series A valuation of $547 million from June 2025. The platform enables developers to route API calls across over 400 large language models, simplifying integration and reducing costs. OpenRouter’s user base has grown to 8 million globally, with weekly token volume surging from 5 trillion to 25 trillion in six months. The company’s strategic investors include major cloud, AI chip, and enterprise workflow providers, reflecting demand for multi-model routing as a core infrastructure layer. OpenRouter’s product consolidates API integrations, billing, and rate limits into a single endpoint, allowing dynamic routing to optimize cost and performance. Analysis shows routing can cut inference costs by 30-50% without sacrificing quality, benefiting both customers and OpenRouter’s 5% markup on inference spend. The platform’s public model-usage rankings serve as a real-time benchmark for production deployments, aligning with industry trends. Industry reports highlight the shift toward multi-model AI routing, with 78% of organizations now managing their own inference services and 70% of AI-driven enterprises projected to adopt routing architectures by 2028. OpenRouter CEO Alex Atallah emphasized that scaling AI inference requires multi-model solutions, addressing the complexity of integrating and optimizing diverse models for enterprise workloads. The funding round underscores the strategic importance of AI infrastructure, with investors spanning cloud platforms, AI hardware, and enterprise software. OpenRouter’s growth aligns with broader industry adoption of dynamic, cost-efficient AI routing as a standard operational practice.
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