{"version":"2.1.275","anchor":"new-settings-env-default-model-source-classification-when","canonical_anchor":"new-model-source-category-settings-env-default-for-anthrop","heading":"New 'settings_env_default' model-source label for ANTHROPIC_DEFAULT_*_MODEL env vars","tier":"use","area":"Models","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.275\/e\/new-settings-env-default-model-source-classification-when","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.275","markdown":"### New 'settings_env_default' model-source label for ANTHROPIC_DEFAULT_*_MODEL env vars\n\nModels picked via ANTHROPIC_DEFAULT_*_MODEL environment variables are now attributed to a distinct 'settings_env_default' source\n\n**What** Model-source attribution logic now recognizes environment variables shaped like `ANTHROPIC_DEFAULT_[A-Z]+_MODEL` (for example a variable ending in `_MODEL`). When the organization's model-attribution mode is set to `env` and the active model matches one of these variables, the reported source is now `settings_env_default` instead of falling through to remap\/agent\/settings-based logic.\n\n**Why** This gives clearer, more accurate reporting of why a particular model was selected when it comes from an `ANTHROPIC_DEFAULT_*_MODEL` environment variable set via managed settings, rather than lumping it in with unrelated attribution sources.\n\n- Area: Models\n- Names: `ANTHROPIC_DEFAULT_MODEL`\n- Tier: Use it now\n- Useful: 3\/5\n- Signal: 2\/5"}