Anthropic says Opus 5 can over-verify and widen tasks unless prompts are tightly scoped

Gliese351c · reddit · 2026-07-25

A Reddit post shares a screenshot of Anthropic’s Opus 5 guidance on “task scope and over-verification.” The image says Opus 5 tends to verify its own work without being asked, and that adding explicit verification steps can cause wasted tokens without improving quality. It also warns that the model may expand a task beyond what was requested, so users should constrain scope clearly and tell it to deliver only what was asked.

Related event: Anthropic Warns Claude Opus 5 Prone to Over-Verification(2 posts)→

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