[BUG] Fable flagging and switching to Opus for no good reason

Status Open
Maintainer reply None cached
Activity 0 comments · opened Jul 19, 2026

Preflight Checklist

  • [x] I have searched existing issues and this hasn't been reported yet
  • [x] This is a single bug report (please file separate reports for different bugs)
  • [x] I am using the latest version of Claude Code

What's Wrong?

Fable has become completely unusable in the past 24h. What's the broader filter you're using, are you flagging anything that may generate the word "secure"? Just a reminder that not all that mentions or generates anything related to "security" is cyber-security. At least when you flag messages these often, give back the tokens! I have a Max subscription, and Fable ate 20% of my 5-hour limit because it processed the prompt and then switched over and over again! The "Weekly Fable limit" went up to 92% and I swear it did no work that wasn't switching to Opus 4.8. And on a Max account, 100$/month... for this?

Also switching to Opus 4.8 would have been fine if you hadn't nerfed it.

What Should Happen?

Proper filtering for paying customers, that's what should happen.

And don't nerf a model before being absolutely sure that the new one is usable.

Error Messages/Logs

Steps to Reproduce

Even just "what do you think about our previous discussion" gets flagged, jeez.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Claude 1.22209.0 (77c938)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_

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