tech
Arena, the AI leaderboard everyone uses, is now a $100M business
The startup, which runs a popular free AI leaderboard, launched its commercial service just last September.

TL;DR
- Arena, originating from UC Berkeley, has reached $100 million in annualized run-rate revenue.
- The company launched its commercial AI Evaluations service in September, providing performance analytics.
- Arena's revenue is based on consumption, not recurring charges.
- The AI leaderboard platform is known for its crowdsourced model performance data from over 10 million user evaluations.
- Arena competes with human labeling startups like Mercor, Surge, and Scale AI for post-training optimization services.
- Arena previously raised $150 million in a Series A round at a $1.7 billion valuation.
- The company was co-founded by Anastasios Angelopoulos, Wei-Lin Chiang, and Ion Stoica.
- Arena has raised a total of $250 million from investors.