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Arena
Arena is a community-powered AI evaluation platform where people compare frontier-model outputs and vote, generating human-preference data and public leaderboards.
San Francisco, United States
Current Funding Stage
Series ACurrent recognized equity stage. The rounds below remain the historical funding record.
Funding Rounds
Funding Round: Series A
Funding Date: 6 Jan, 2026
Raised Amount: $150M
Funding Round: Seed
Funding Date: 21 May, 2025
Raised Amount: $100M