User Reports of Verbosity and Instruction Drift in Opus 5
August 13, 2026
Users report significant issues with Claude Opus 5, specifically extreme verbosity, excessive use of buzzwords, and an inability to maintain persona instructions via system files. The model reportedly fails to complete simple tasks without over-explaining or reverting to bloated output styles.
HOW THIS AFFECTS YOU
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builderYou may need to implement more rigorous output parsing or prompting strategies to manage model verbosity in production.