technology
Arena Hits $100 Million Annualized Revenue Eight Months After Launch
The AI leaderboard company, which began as a UC Berkeley project, hit the milestone through its paid evaluations service. Revenue comes from consumption charges rather than subscriptions.
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Arena reached $100 million in annualized run-rate revenue just eight months after launching its commercial service in September 2025, TechCrunch reported. The company originated as a research project at UC Berkeley in 2023 and incorporated in April 2025. Arena operates a free consumer website that sends user prompts to two models and records which one performs better according to the user.
Its public leaderboard draws from more than 10 million evaluations and ranks models on text, coding, vision, image generation, and complex workflows through Agent Mode. The company introduced its paid AI Evaluations service in September 2025 to supply model labs and enterprises with performance analytics.
Anastasios Angelopoulos, Arena’s co-founder and CEO, said revenue comes from consumption-based charges rather than recurring subscriptions.
“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,” he told TechCrunch. When Arena announced a $150 million Series A in January 2026 at a $1.7 billion post-money valuation, its annualized revenue stood at $30 million.
The company has now raised a total of $250 million from investors including Felicis, Andreessen Horowitz, The House Fund, LDVP, Kleiner Perkins, Lightspeed Venture Partners, Laude Ventures, and UC Investments.
Co-founders include Wei-Lin Chiang, who serves as CTO, and Ion Stoica, the UC Berkeley professor who advised the project before incorporation. Arena competes for post-training refinement spending with human labeling firms, TechCrunch reported, while another crowdsourced model-picking startup, Yupp, shut down in March 2026.
