CLAUDE_CODE_3P_SEEDED_OPUS_DEFAULT
Updated by Alex Sorokoletov
CLAUDE_CODE_3P_SEEDED_OPUS_DEFAULT is a Claude Code environment variable. Added in v2.1.285 and still present in v2.1.295. It is not in the official reference.
| Status | Present in v2.1.295 |
|---|---|
| Added | Added in v2.1.285 |
| 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_3P_SEEDED_OPUS_DEFAULT=<value>
claudeTo apply it to every session, add it to the env object of a settings file:
// ~/.claude/settings.json
{
"env": {
"CLAUDE_CODE_3P_SEEDED_OPUS_DEFAULT": "<value>"
}
}Related variables
ANTHROPIC_DEFAULT_OPUS_MODEL: Override Opus model ID.ANTHROPIC_DEFAULT_OPUS_MODEL_DESCRIPTIONANTHROPIC_DEFAULT_OPUS_MODEL_NAMEANTHROPIC_DEFAULT_OPUS_MODEL_SUPPORTED_CAPABILITIESCLAUDE_CODE_3P_PROBE_WROTE_OPUS_DEFAULTANTHROPIC_DEFAULT_FABLE_MODELANTHROPIC_DEFAULT_FABLE_MODEL_DESCRIPTIONANTHROPIC_DEFAULT_FABLE_MODEL_NAME
Frequently asked questions
Which Claude Code version has CLAUDE_CODE_3P_SEEDED_OPUS_DEFAULT?
Added in v2.1.285 and still present in v2.1.295.
How do I set CLAUDE_CODE_3P_SEEDED_OPUS_DEFAULT?
Export it before starting Claude Code (export CLAUDE_CODE_3P_SEEDED_OPUS_DEFAULT=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.