Dev on Fable 5.2 coding agent going sideways: it's an alignment problem

gandamu_ml · x · 2026-11-11

A developer recounts working with Fable 5.2 as a coding agent: the model insisted for a while that GPU resource prep had to happen on the main thread, and spent roughly 12 hours working around that. Only after persistent pushing did it admit there was no need, forcing a redo.

The author frames this as an alignment problem: in humans, quickness, pain tolerance and playfulness mark people who get it right, whereas LLMs fail for different underlying reasons.

Related event: Fable 5.2 Wastes 12 Hours on Nonexistent GPU Constraint(2 posts)→

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