LMArena is an open platform where everyone can access and interact with the world\'s leading AI models and contribute to AI progress through real-world feedback. Built with scientific rigor and transparency at its core, LMArena enables developers, researchers, knowledge workers and enthusiasts to compare model outputs, uncover performance differences and advance the reliability of AI systems. With a commitment to open access, reproducible methods and diverse human judgment, LMArena is building the foundation for the world to understand, shape and benefit from AI.
| Date | Amount | Type | Investors | Valuation |
|---|---|---|---|---|
| 01/06/26 | $150,000,000 | Venture |
Andreessen Horowitz Felicis Ventures  Kleiner Perkins Caufield and Byers Laude Ventures LDVP Lightspeed Venture Partners The House Fund UC Investments | $1,700,000,000 |
