Commands

/fast

Turns fast mode on or off.

Usage

/fast on

When to use it

When response speed matters.

Source: https://code.claude.com/docs/en/commands

Related

/modelSwitches the model and saves it as your default; the left and right arrow keys also adjust effort.Claude CodeCommands/effortAdjusts how hard the model thinks (effort).Claude CodeCommandsNew 2026-03Option/Alt+OTurns fast mode on or off.Claude CodeShortcuts

More Claude Code commands

/helpShows help and the commands you can use.Commands/clearStarts a new conversation with an empty context; if you give it a name, the previous conversation gets that label.Commands/compactSummarizes the conversation to free up context.Commands/contextShows context usage as a colored grid and suggests ways to optimize it.Commands/autocompactSets when automatic compaction kicks in.Commands/configOpens the settings screen, or sets a value directly with key=value.Commands
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