[FEATURE] Shortcut for model switching in interactive mode

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

Regularly when writing a prompt I realize that this prompt is better suited for Opus. At this time, there is no shortcut to switch models while writing a prompt.

Proposed Solution

It would be really useful if there is a shortcut like there is Shift+Tab for switching modes to switch models explicitly.

Alternative Solutions

What works for me as a workaround is to:

1. Finish the prompt, enter it, and let Claude start it with Sonnet
2. Cancel the current execution
3. Switch to Opus using /model
4. Rerun the prompt that I've written

This is a bit cumbersome.

Priority

Medium - Would be very helpful

Feature Category

Interactive mode (TUI)

Use Case Example

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Additional Context

_No response_