OpenRouter, an AI gateway startup founded in 2023, has raised $113 million in a Series B funding round led by CapitalG, the growth venture fund of Google parent company Alphabet. The round, announced in May 2026, values the company at approximately $1.3 billion post-money — more than double its estimated $547 million valuation from just a year ago.
That earlier valuation came after a $40 million Series A in June 2025, led by Andreessen Horowitz and Menlo Ventures, with participation from Sequoia.
OpenRouter’s platform functions as an AI gateway, helping enterprises and other users select from different AI models depending on the task — a way to control costs or improve accuracy and reasoning for specific jobs. The service provides access to over 400 models from providers including Anthropic, Google, OpenAI, xAI, and DeepSeek.
The company reports 8 million global users and says it processes roughly 100 trillion tokens per month, or about 25 trillion per week. That figure represents a fivefold increase from the 5 trillion tokens per week it was handling just six months ago.
OpenRouter attributes part of its growth to a broader shift in how AI is being used — from model training to inference to, more recently, AI agents. As that shift has taken hold, demand for flexible, multi-model access has risen alongside it.
The startup’s trajectory suggests companies are actively avoiding lock-in to a single AI model vendor. Rather than standardizing on one provider, enterprises appear to be routing different tasks to different models — a pattern that may indicate the multi-model approach is becoming a default rather than an exception.
Source: TechCrunch