Set thoughts panel width in Grok Build

max_thoughts_width under [ui] sets the column width of the thoughts / reasoning panel while streaming. Official range: Settings reference.

Values

Setting	Range	Default
max_thoughts_width	40–500	120

Pin it in user config

[ui]
max_thoughts_width = 160

Widen toward 500 when long reasoning lines wrap too early. Narrow toward 40 on short terminals so the main transcript keeps more columns.

Show or hide the blocks themselves

Width only matters when thinking blocks are visible. Toggle visibility with:

[ui]
show_thinking_blocks = true

Or the env override GROK_SHOW_THINKING_BLOCKS=0 / 1. Details: Show thinking blocks in Grok Build. Collapse or expand blocks in scrollback with Ctrl+E once focus is in the scrollback (Keyboard shortcuts).

Pitfalls

• Editing project .grok/config.toml for [ui] — use user config.
• Expecting max_thoughts_width to change model reasoning effort — that is /effort / default_reasoning_effort, not panel width.