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AgentsCoding agentsAnthropic 4 Sep 2026 reddit

Fable 5.1 vs Fable 5 head-to-head: building a racing game from scratch

The brief

A user gave both Fable 5.1 and Fable 5 the identical task of building a playable racing game, including Blender 3D model creation with PBR materials and a working physics implementation.

Key points

  1. Fable 5.1 produced a more complete and playable result.
  2. The test is one of the more structured user-run comparisons of the two model versions.
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