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Arena, the AI leaderboard everyone uses, is now a $100M business

TechCrunch AI · Jun 29, 2026, 5:39 PM

Key takeaways

  • Just eight months after launching its commercial service, AI leaderboard provider Arena, which originated as a research project at UC Berkeley in 2023, has reached $100 million in annualized run-rate revenue.
  • Arena is best known for its popular crowdsourced AI model performance leaderboard, generated from over 10 million user evaluations.
  • “A lot of people don t even understand that our business is making any money at all; people still see us as like an open-source project,” Anastasios Angelopoulos, Arena’s co-founder and CEO, told TechCrunch.

Why this matters: a development in AI with implications for how people work, create, and decide.

Just eight months after launching its commercial service, AI leaderboard provider Arena, which originated as a research project at UC Berkeley in 2023, has reached $100 million in annualized run-rate revenue.

Arena is best known for its popular crowdsourced AI model performance leaderboard, generated from over 10 million user evaluations. Its consumer website lets a user type a prompt it sends to two models; afterwards, the user chooses which model did a better job.

While Arena’s popular AI model leaderboard is free for public use, the company began generating revenue from its platform in September when it introduced AI Evaluations, a service that provides model labs and enterprises with deep-dive performance analytics gathered from its community.

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