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Tech
May 26, 2026
Analyzed by GPT OSS 120B

OpenRouter Raises $113 Million Series B, Valuation More Than Doubles to $1.3 B

AI Summary
OpenRouter, the AI model gateway founded in 2023, closed a $113 million Series B led by CapitalG, pushing its post‑money valuation to roughly $1.3 billion—more than double the $547 million valuation a year earlier. The funding underscores rapid growth in its multi‑model platform, now serving 8 million users and processing 100 trillion tokens each month.

OpenRouter announced a $113 million Series B financing round led by CapitalG, the growth arm of Alphabet, lifting its post‑money valuation to an estimated $1.3 billion. The round marks a dramatic increase from the roughly $547 million valuation recorded a year ago.

Series B Funding and New Valuation Milestone

  • Lead investor: CapitalG (Alphabet)
  • Round size: $113 million
  • Post‑money valuation: ~$1.3 billion
  • Previous valuation (2025): ~$547 million
  • Earlier round: $40 million Series A in June 2025, led by Andreessen Horowitz and Menlo Ventures

Scale Metrics: Users, Tokens, and Model Portfolio

  • Active global users: 8 million
  • Monthly token throughput: 100 trillion tokens (≈25 trillion per week)
  • Weekly token growth: 5× increase from 5 trillion tokens six months earlier
  • Model catalog: access to > 400 models from providers such as Anthropic, Google, OpenAI, xAI, DeepSeek

Why Multi‑Model Gateways Are Redefining AI Procurement

The surge in OpenRouter’s usage reflects a broader shift from single‑model reliance to a flexible, agent‑driven AI stack. Enterprises now prefer a "swappable engine" approach, allowing them to match the most cost‑effective or highest‑performing model to each specific task without vendor lock‑in.

Future Outlook: Expansion of Agent‑Driven AI and Competitive Landscape

As AI workloads move deeper into inference and autonomous agents, platforms that can orchestrate dozens of models will become critical infrastructure. OpenRouter’s rapid growth suggests it will attract further investment and potentially expand into edge‑deployment services, while traditional SaaS providers may need to integrate similar multi‑model capabilities to stay competitive.