[BUG] it may be a harness reloading issue on your end.

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?

Default model is already set to Claude Sonnet 4.6 in /home/codespace/.claude/settings.json. But the model dropdown in chatbox remained unchanged at Claude Haiku 4.5 even after hard refresh the browser and signed out and in from https://github.com/codespaces.

What Should Happen?

The model dropdown list should display the default Claude Sonnet 4.6, and with other options for selection such as Claude Haiku 4.5 or 4.6, Opus 4.6, and so on.

Error Messages/Logs

The model dropdown list remained unchanged as Claude Haiku 4.5.

Steps to Reproduce

Please refer to the attached file

<img width="4142" height="2322" alt="Image" src="https://github.com/user-attachments/assets/2b995345-eb4e-42bd-a8d8-b70f35699a7f" />

Claude Model

Other

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

Claude --version: N/A (Browser-based Claude Code)

Platform

Other

Operating System

Other Linux

Terminal/Shell

Other

Additional Information

<img width="4142" height="2322" alt="Image" src="https://github.com/user-attachments/assets/212976da-61dc-43af-8ec2-757f9f692518" />