Feature Request: Expose Custom Parameters in Web GUI

[angeousta]

It would be very useful to expose custom runtime parameters directly in the web GUI.

Currently, some parameters (for example enabling/disabling "think mode") can only be changed through CLI arguments or API configuration, but there is no simple way to modify them from the web interface.

Requested Feature

Add a generic GUI section for custom parameters / advanced flags, allowing users to:

• enable or disable boolean options
• edit custom inference parameters
• dynamically change runtime flags without restarting or editing configs manually

Example:

• think mode: ON / OFF

Why This Helps

This would improve usability for non-technical users and make experimentation much easier directly from the web UI.

It could also make future custom parameters automatically available without requiring dedicated GUI updates for each one.

[vfil]

@angeousta @allozaur I would like to take a stab on this. I guess we shouldn't just drop everything in the UI right now, for me it make sense to start with most sensible parameters. So maybe I can start with think mode toggle but also take into consideration that eventually the list will expand? Do you already have any ideas for UX? Currently Claude puts thinking UI toggle right on the bottom of the user input, should it be similar? In this case we could add a settings icon next to the model name and have a popup to tune the params there? Sounds good for you?

[allozaur]

This is very much related to Models Management miletsone, so the UI/UX would need to correspond with the design resulting from the models management soon to be introduced. Let's come back to this at the beginning of Jul