OpenRouter, a platform providing unified access to various AI models, has raised $113 million in a Series B funding round led by CapitalG, Alphabet's independent growth fund. The announcement was made on May 27, 2026, according to a company blog post.
The funding round also saw participation from existing investors including a16z, Sequoia Capital, and others. The company reported that its weekly token volume has exploded to 25 trillion tokens, indicating massive growth in usage of its API aggregation service.
OpenRouter's platform allows developers to access multiple large language models from providers like OpenAI, Anthropic, and Meta through a single API, simplifying integration and reducing costs. The new capital will be used to expand infrastructure, support more models, and scale operations globally.
This investment underscores the increasing demand for flexible AI infrastructure as enterprises and developers seek to avoid vendor lock-in and optimize for performance and cost across different AI models.