[BUG] claude-fable-5 is unavailable

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?

There's an issue with the selected model (claude-fable-5). It may not exist or you may not have access to it. It is not working in cli, web or app.

What Should Happen?

Claude fable should be available

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.
agentId: a4e963faa5a0d4155 (use SendMessage with to: 'a4e963faa5a0d4155' to continue this agent)
<usage>subagent_tokens: 0
tool_uses: 0
duration_ms: 785</usage>

Steps to Reproduce

Try to send any message with chosen model

Claude Model

Other

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.158 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_