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Developer finds Claude Fable has higher rework rate than Opus in 102 coding sessions

A developer tracked rework requests across 102 local Claude Code sessions, finding Opus needed rework in 21% of sessions and Fable in 28%. The user notes the comparison is not statistically significant and that Fable was given harder tasks, but still considers Fable the better model.

6 engagement·1 source·Sun, Jul 12, 2026, 01:22 AM
The developer analyzed 102 local Claude Code sessions, counting each time they sent Claude back to redo or correct finished work. Opus required rework in 13 of 63 sessions (21%), while Fable required rework in 11 of 39 sessions (28%). The user acknowledges the comparison lacks statistical significance and that Fable was assigned newer, harder tasks. One autonomous build with Fable needed 7 correction rounds. Despite the higher rework rate, the developer still considers Fable the better model, noting they tend to give Fable more autonomy and notice problems later.

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Claude Opus(model)Claude Fable(model)Claude Code(tool)

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