{"version":"2.1.68","anchor":"legacy-model-remap-opt-out","canonical_anchor":"legacy-model-remap-opt-out","heading":"Legacy model remap opt-out","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.68\/e\/legacy-model-remap-opt-out","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.68","markdown":"### Legacy model remap opt-out\n\n**What**\n\nUsers who were automatically migrated from legacy Opus models to Opus 4.6 can now opt out by setting an environment variable.\n\n**Usage**\n\n`export CLAUDE_CODE_DISABLE_LEGACY_MODEL_REMAP=1` **Details** - When your model is auto-remapped to Opus 4.6, the notification now reads: \"Model updated to Opus 4.6 \u00b7 Set CLAUDE_CODE_DISABLE_LEGACY_MODEL_REMAP=1 to opt out\" - The notification displays for 8 seconds (up from 3) when the opt-out message is shown, giving you time to read the instructions - Setting the environment variable to `1` disables the automatic model remapping entirely - The remap behavior is also gated by the `tengu_grey_wool` feature flag (defaults to enabled) **Evidence** Model remap opt-out (search for `\"CLAUDE_CODE_DISABLE_LEGACY_MODEL_REMAP\"`) \u2014 `gy1()` at line ~535228"}