LMSYS Arena updated Code Arena: WebDev rankings: OpenAI GPT-6 Astra (Max) leads at 1800 points, with Anthropic Claude Fable 5.1 (Max) second at 1758. Anonymous win-rate charts show Astra dominating most matchups, including about 72.5% against GPT-5.6 Sol (xHigh).
LMArena: OpenAI GPT-6 Astra (Max) takes #1 on Code Arena WebDev at 1797 pts, about +35 over Claude Fable 5.1 (Max) at 1762 and ahead of Claude Opus 5 (Max) and GPT-5.6 Sol (xHigh). It also reshapes the quality-price Pareto frontier at ~$40/Mtoken matching latest Claude pricing, on agentic web-dev workflows with multi-step reasoning and tool use.
LMArena published Claude Fable 5.1 (Max) domain splits for Code Arena WebDev: overall 1765 vs Fable 5βs 1628 at #1, leading five of six domains (Gaming, Simulations, Reference-Based Design, Brand & Marketing, Consumer Product). Data & Analytics rose only +17. Scores for Content Creation and Fullstack are still forthcoming.
Arena.ai reports Claude Fable 5.1 (Max) takes #1 on Code Arena: WebDev at 1765 ptsβup from Fable 5 (Max) at #8 / 1628 (+137 overall)βand leads Qwen3.8-Max-0902 by ~77 pts. It ranks #1 in five of six domains with large gains in Gaming, Simulations, and Reference-Based Design, and at ~$40/MToken reshapes the higher-price Pareto frontier.
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