{"version":"2.1.84","anchor":"custom-model-capability-overrides","canonical_anchor":"custom-model-capability-overrides","heading":"Custom Model Capability Overrides","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.84\/e\/custom-model-capability-overrides","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.84","markdown":"### Custom Model Capability Overrides\n\nThird-party API users can now declare model capabilities via environment variables: `ANTHROPIC_DEFAULT_OPUS_MODEL_SUPPORTED_CAPABILITIES`, `ANTHROPIC_DEFAULT_SONNET_MODEL_SUPPORTED_CAPABILITIES`, and `ANTHROPIC_DEFAULT_HAIKU_MODEL_SUPPORTED_CAPABILITIES`. These are comma-separated capability strings that Claude Code checks when deciding which features to enable for custom models.\n\n**Evidence**\n\nCapability env vars (search for `\"ANTHROPIC_DEFAULT_OPUS_MODEL_SUPPORTED_CAPABILITIES\"`)"}