Arena

📍 San Francisco, United States🗓 Founded 2025👥 67 employees💰 Last funded Dec 2025
Research Services🌐 arena.ai
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Created by researchers from UC Berkeley, Arena (formerly LMArena) is a community-powered platform to measure and advance the frontier of AI for real-world use. Tens of millions of builders, researchers, and creative professionals come to Arena to use frontier models and give feedback on their responses, shaping a public leaderboard grounded in real-world use.
6
Total investors
6
Early stage
0
Mid stage
0
Late stage
2025
Founded

Investors

6 investors
All
Early stage
Mid stage
Late stage
Investor geography1 country
United States
6
Frequently asked questions
Who invested in Arena?
Arena has 6 investors on record on gritt.io, including 6 early-stage backers.
When did Arena last raise funding?
The most recent investment in Arena recorded on gritt.io was in December 2025.
When was Arena founded?
Arena was founded in 2025.
What industry is Arena in?
Arena operates in Research Services. Find similar Research Services investors on gritt.io.
Where is Arena based?
Arena is headquartered in San Francisco, United States.