CLAUDE_CODE_AUTO_MODE_MODEL
Updated by Alex Sorokoletov
CLAUDE_CODE_AUTO_MODE_MODEL is a Claude Code environment variable: Picks the model that classifies each proposed edit — deliberately separate from the model doing the work. A small, fast model here keeps the safety check cheap next to the editor. Added between v2.1.143 and v2.1.212 and still present in v2.1.294. It is not in the official reference.
| Status | Present in v2.1.294 |
|---|---|
| Added | Added between v2.1.143 and v2.1.212 |
| Category | Models and thinking |
| Official docs | Not listed |
How to set it
For one session, export it in the shell that starts Claude Code:
export CLAUDE_CODE_AUTO_MODE_MODEL=<value>
claudeTo apply it to every session, add it to the env object of a settings file:
// ~/.claude/settings.json
{
"env": {
"CLAUDE_CODE_AUTO_MODE_MODEL": "<value>"
}
}Release notes that mention it
- Claude Code v2.1.209 — Auto Mode Grows Up
- Claude Code Version Tracker: Undocumented Env Vars, Feature Gates & Models
Related variables
ANTHROPIC_CUSTOM_MODEL_OPTIONANTHROPIC_CUSTOM_MODEL_OPTION_DESCRIPTIONANTHROPIC_CUSTOM_MODEL_OPTION_NAMEANTHROPIC_CUSTOM_MODEL_OPTION_SUPPORTED_CAPABILITIESANTHROPIC_DEFAULT_FABLE_MODELANTHROPIC_DEFAULT_FABLE_MODEL_DESCRIPTIONANTHROPIC_DEFAULT_FABLE_MODEL_NAMEANTHROPIC_DEFAULT_FABLE_MODEL_SUPPORTED_CAPABILITIES
Frequently asked questions
What does CLAUDE_CODE_AUTO_MODE_MODEL do?
Picks the model that classifies each proposed edit — deliberately separate from the model doing the work. A small, fast model here keeps the safety check cheap next to the editor.
Which Claude Code version has CLAUDE_CODE_AUTO_MODE_MODEL?
Added between v2.1.143 and v2.1.212 and still present in v2.1.294.
How do I set CLAUDE_CODE_AUTO_MODE_MODEL?
Export it before starting Claude Code (export CLAUDE_CODE_AUTO_MODE_MODEL=value), or add it to the "env" object in ~/.claude/settings.json to apply it to every session.
All variables, searchable: Claude Code environment variables.