[Bug] Fable model unavailable: overly restrictive safety filtering for legitimate research use cases

Status Closed — not planned
Reported on v2.1.173
Maintainer reply None cached
Activity 1 comment · opened Jun 11, 2026 · closed Jul 22, 2026

Bug Description
I am unable to engage the Fable model, which returns the message shown below. I am using it for basic research: while the work touches on biology applications, it is strictly limited to statistical methodology development and raises no data-security concerns that differ across models. I hope the Fable model becomes available sooner for contributors working in basic research domains. `` Fable 5's safety measures flagged this message for cybersecurity or biology topics. They may flag safe, normal content as well. These measures let us bring you Mythos-level capability in other areas sooner, and we're working to refine them. Switched to Opus 4.8. Send feedback with /feedback or learn more ``

Environment Info

  • Platform: darwin
  • Terminal: vscode
  • Version: 2.1.173
  • Feedback ID: 4f9e9f80-699f-49c3-93d7-b8d029ffb50c

Errors

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