Shift+Tab mode toggle resets model to gpt-5.2-codex; multi-agent cannot choose model or reasoning depth

What version of Codex is running?

v0.89.0

What subscription do you have?

team

Which model were you using?

gpt-5.2

What platform is your computer?

Windows 11

What terminal emulator and version are you using (if applicable)?

PowerShell

What issue are you seeing?

1. When I toggle modes with Shift+Tab, the currently selected model is forcibly reset to gpt-

5.2-codex.

1. When multi-agent mode is started, agents are locked to gpt-5.2-codex and I cannot choose a

model or set reasoning depth.

What steps can reproduce the bug?

• Model reset breaks workflow consistency and makes model comparison difficult.
• Multi-agent work can’t assign the most suitable model for each task, reducing efficiency and

quality.

What is the expected behavior?

• Add a configuration entry point for multi-agent model selection (CLI flag / config file /

interactive menu).

• Keep model selection independent from mode toggle.

Additional information

_No response_