[Bug] Anthropic API Error: Opus 5.5 safeguards incorrectly flagging legitimate biology research

Status Open
Reported on v2.1.281
Maintainer reply None cached
Activity 0 comments · opened Sep 25, 2026

Bug Description
i got the following erros though it do is a legitimate use for my cientific masters degree dissertation: API Error: Opus 5.5's safeguards flagged this session (https://www.anthropic.com/legal/aup). You may be seeing this for the first time on an Opus model: Opus 5.5 is more capable and has stronger safeguards as a result, which can sometimes flag biology-research-adjacent work. We're improving these safeguards to reduce the amount of incorrectly flagged messages. Claude Code can't respond to your last message with Opus 5.5.

Double press esc to edit your last message, or try a different model with /model.

Send feedback with /feedback or learn more: https://support.claude.com/en/articles/8106465

Details: [bio]

Request ID: req_011CfPGxBhAinJW3i4KCansP

Environment Info

  • Platform: linux
  • Terminal: gnome-terminal
  • Version: 2.1.281
  • Feedback ID: e9a7f627-0926-4b08-bd03-3314da2a9a58

Errors

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