[BUG] There's an issue with the selected model (claude-fable-5). It may not exist or you may not have access to it. Run /model to pick a different model.

[RonnyTome]

Preflight Checklist

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

What's Wrong?

There's an issue with the selected model (claude-fable-5). It may not exist or you may not have access to it. Run /model to pick a different model.

What Should Happen?

There's an issue with the selected model (claude-fable-5). It may not exist or you may not have access to it. Run /model to pick a different model.

Error Messages/Logs

There's an issue with the selected model (claude-fable-5). It may not exist or you may not have access to it. Run /model to pick a different model.

Steps to Reproduce

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Fable 5

Claude Code Version

Fable 5

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

No response

[DonPrus]

Fable 5 & Mythos 5 have been disabled for all users. Anthropic was forced to do this by the US government:
https://www.anthropic.com/news/fable-mythos-access

[woolfi182]

Thanks for sharing @DonPrus
After this comment I believe the whole thread can be closed

[thomas-ej-worm]

I also get "There's an issue with the selected model (claude-fable-5). It may not exist or you may not have access to it." in Claude Code for VSCode with Cable 5 Max Effort setting.

[jbsilva]

Good they disabled it. This model was so dangerous!!!

[jbsilva]

BTW
Duplicates #68120 #68121 #68122 #68123 #68124 #68126

[atraining]

this night I was running 10 terminal sessions on /model fable, 20x Max.

for 3 agents

only high context burn terminals exited ca at 3 AM UTC, too.

[datasciritwik]

Good they disabled it. This model was so dangerous!!!

ya and you're a disgusting