[Bug] Anthropic API Error: Content flagged by safeguards on Claude 3.5 Opus

Status Open
Reported on v2.1.268
Maintainer reply None cached
Activity 0 comments · opened Sep 13, 2026

Bug Description
API Error: Opus 5 (1M context)'s safeguards flagged this message (https://www.anthropic.com/legal/aup). This sometimes happens with safe, normal conversations. Claude Code can't respond to this message with Opus 5 (1M context).

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/16049681

Details: [reasoning_extraction]

Request ID: req_011Cf1pd6i978C7GHgtvWoyd

Environment Info

  • Platform: darwin
  • Terminal: ghostty
  • Version: 2.1.268
  • Feedback ID: de712a25-43dd-44b5-bb52-303e97e08cad

Errors

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