I'll create a v0 interface with a chat column, LLM settings column, and tab toggle system as requested.

This interface includes:

1. Tab Navigation System:

   • Chat Interface tab (default)
   • Screen Preview tab

2. Chat Interface Tab:

   • Left column: Chat interface with message history and input field
   • Right column: LLM settings matching the design in your image

3. Settings Column Features:

   • Model selection dropdown with "Fenrir" as default
   • Temperature slider (0.6)
   • Top P slider (0.1)
   • Top K slider (1)
   • Max Output Tokens slider (8000)
   • Apply Settings button

4. Screen Preview Tab:

   • Shows a preview of how the chat would appear on a device
   • Displays the current settings configuration

The interface is fully responsive and will adapt to different screen sizes. On mobile devices, the columns will stack vertically.

I'll restructure the interface to keep the chat in the first column and move the tabs to the second column.

I've restructured the interface as requested:

1. Two-Column Layout:

   • Left column: Chat interface (always visible)
   • Right column: Tab navigation with Settings and Preview tabs

2. Tab Navigation:

   • Now contained within the second column
   • Two tabs: Settings and Preview

3. Settings Tab:

   • Contains all the LLM parameters from the image:

     • Voices dropdown (Fenrir)
     • Temperature slider (0.6)
     • Top P slider (0.1)
     • Top K slider (1)
     • Max Output Tokens slider (8000)

4. Preview Tab:

   • Simplified to a basic placeholder screen
   • Shows a laptop icon and the current settings values
   • Designed as a simple preview card

This layout keeps the chat interface always visible in the first column while allowing users to toggle between settings and preview in the second column.