lmarena.ai
LMArena: Open Platform for Community-driven AI Benchmarking. Graduated from UC Berkeley / lmsysorg. We’re hiring: lmarena.ai/jobs
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BREAKING: New Leaderboard Updates! Claude-Opus-4.5 and Opus-4.5 (thinking-32k) just landed on Code Arena (WebDev) and Text Arena leaderboards… and Opus-4.5 instantly took #1 in WebDev leaderboard, surpassing Gemini 3 Pro! WebDev leaderboard (powered by Code Arena) #1 for Claude-Opus-4.5 (thinking-32k) #2 for Claude-Opus-4.5 Expert Leaderboard #1 for Claude-Opus-4.5 Text Leaderboard - #3 for Claude-Opus-4.5 - #6 for Claude-Opus-4.5 (thinking-32k) Huge congrats to the @AnthropicAI team for such incredible milestone! Learn more in the thread on how it performs in key categories and on the Occupational leaderboard.
