Reddit user reports Claude Opus 5 suddenly sloppier and softer in tone
grumpybun1 · reddit · 2026-10-21
A daily user reports Opus 5 changed noticeably in recent days under identical project setup: broken sentence constructions, repeated time-calculation and basic arithmetic errors, plus a personality shift from dry and combative to soft and agreeable with far more clarifying questions. Reasoning seems intact; user suspects effort-level or routing changes. No official confirmation yet.
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