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Fable 5.2 leads AA-3D agentic scene-building benchmark

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Artificial Analysis@ArtificialAnlys

Claude Fable 5.2 is now #1 on AA-3D, our benchmark for how well AI models build interactive 3D experiences Claude Fable 5.2 (Max) scores 1271 Elo, 67 points ahead of Claude Sonnet 5.5 (1204) and Claude Opus 5.5 (1202). Its 95% confidence interval (1246 to 1297) does not overlap any other models, so its lead is outside the margin of error. Key results: ➤ It scores 132 points above its predecessor, Claude Fable 5.1 (1139) ➤ It is ahead of the highest-ranked OpenAI and Google models on AA-3D, GPT-6 Astra (1168) and Gemini 4 Argon (1147) More results and scenes in the thread below

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Why it matters

Fable 5.2 leads AA-3D by 67 Elo with a non-overlapping interval, and beats Fable 5.1 by 132. The tests agents building interactive three.js scenes with Blender, physics, and a headless browser.

Terms in this piece · Glossary
  • sandbox — An isolated environment where AI-generated code or agent actions run without being able to touch anything real.
  • benchmark — A standard public test set for comparing AI models — the shared scoreboards behind every "model X beats model Y" claim.
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