[BUG] Defaults to opus despite explicitly setting Haiku

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?

despite explicitly changing the model to haiku:

/model
⎿  Set model to haiku (claude-haiku-4-5-20251001)                                                                                                                                                              

It continuously outputs:

Claude Opus limit reached, now using Sonnet 4.5

What Should Happen?

Should stay on Haiku and not expend all the credits.

Error Messages/Logs

Steps to Reproduce

/model haiku

Claude Model

Not sure / Multiple models

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.0.25

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

_No response_