Users say Claude Opus 5 starts ending every answer with a question mark
JasonBotterill · x · 2026-07-28
A user reports a strange Claude Opus 5 behavior: after enough back-and-forth, it starts ending every answer with a question mark.
- The post frames this as a weird model quirk rather than a workflow issue.
- It’s a small but concrete behavior observation about how Opus 5 responds under extended questioning.
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