[Bug] Fable model unusable for coding tasks

Status Open
Reported on v2.1.226
Maintainer reply None cached
Activity 4 comments · opened Aug 10, 2026

Bug Description
Fable become unusable model for any coding tasks. you cant make any architect thins.
and you cannot create new architectural things that want to see visibility for tokens, APIs, authorization, webhooks, and all this is largely due to the politics of Antropic/Claude.

** API Error: Fable 5's safeguards flagged this message (https://www.anthropic.com/legal/aup). Our intentionally broad safeguards allow us to deliver more capabilities faster, but can sometimes flag legitimate coding, cybersecurity, and biology tasks. Claude Code can't respond to this message with Fable 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/15363606

Environment Info

  • Platform: linux
  • Terminal: gnome-terminal
  • Version: 2.1.226
  • Feedback ID: 9ace187b-8c78-448e-877f-0927b8c5db91

Errors

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View original on GitHub ↗

4 Comments

henriquetroiano · 11 days ago

so? updates? i GOT STUCK IN THIS SAFEGUARD with my legitimate prompts!

Wompipomp · 10 days ago

sorry fable is currently unusable. Every second prompt be it websearch, creating an MR in gitlab etc. is stuck with this safeguard!

alexi089 · 10 days ago

seeing this issue reoccur as of today 8/20 for two hours now, only for Fable 5 guardrails.

dannytan-Doglas · 10 days ago

Same issue about this, I let Fable 5 to implement a task with sub-agent and it pop up the API error.