[MODEL] Fable 5 is back - but completely unusable

Preflight Checklist

• [x] I have searched existing issues for similar behavior reports
• [x] This report does NOT contain sensitive information (API keys, passwords, etc.)

Type of Behavior Issue

Claude refused a reasonable request

What You Asked Claude to Do

Reviewing my code for bugs -> "Fable 5's safeguards flagged this message"
Integrate AI chat similar I did else where in my app and let me know if I can use Anthropic's AI for this too -> "Fable 5's safeguards flagged this message"
Blablablub -> "Fable 5's safeguards flagged this message"

"Fable 5's safeguards flagged this message"
"Fable 5's safeguards flagged this message"
"Fable 5's safeguards flagged this message"
.........

It's back, yes. But its completely unusable unless you use it to draw a banana or give you fitness workouts. For coding no matter what I do it always switches to Opus. Thanks for nothing.

What Claude Actually Did

1. Wasted my tokens
2. Showed "Fable 5's safeguards flagged this message"
3. Switched back to Opus

Expected Behavior

Work like Fable 5 already did BEFORE you took it offline.

Files Affected

Permission Mode

Accept Edits was ON (auto-accepting changes)

Can You Reproduce This?

Yes, every time with the same prompt

Steps to Reproduce

_No response_

Claude Model

Other

Relevant Conversation

Impact

Critical - Data loss or corrupted project

Claude Code Version

2.1.199

Platform

Anthropic API

Additional Context

_No response_