Opus 5.5 outperforms Fable 5.1 while costing 67% less per task

Coverage of "Opus 5.5 outperforms Fable 5.1 while costing 67% less per task" from 1 source, with a live timeline of who reported what and when.

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2026-09-22 18:41 · r/ClaudeAI
Opus 5.5 outperforms Fable 5.1 while costing 67% less per task

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