Anthropic's Claude Fable 5.2 Tops WebDev Arena with 30% Speedup
Anthropic released Claude Fable 5.2 and Claude Mythos 5.2, with Fable 5.2 taking first place on the Code Arena WebDev leaderboard at 1832 points, ahead of Claude Opus 5.5, Gemini 4 Carbon and GPT-6 Astra. Anthropic claims up to 30% faster performance than Fable 5.1 and lower pricing of $8/$40 per million tokens.
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Arena.ai (@arena) · 2026-11-09 23
Big news: Claude Fable 5.2 (xHigh) by @AnthropicAI has landed #1 in the Code Arena: WebDev with 1832 pts. This update is up to 30% faster than Fable 5.1, and more cost efficient: 40 per M tokens, down from 50.
This real-world performance puts it ahead of:
- Claude Opus 5.5 (Max) at 1818
- Gemini 4 Carbon (High) at 1768
- GPT-6 Astra (Max) at 1767
Congrats to the @AnthropicAI team on this release! 👏 Stay tuned for Agent Arena scores.
↳ 引用 @claudeai (Claude): Introducing Claude Fable 5.2 and Claude Mythos 5.2, designed to tackle the most daunting technical challenges.
They’re capable collaborators on ambitious projects in many fields, and show improvements in areas like coding, reasoning, and vision.
