AI Stack Registry — Models Provider anthropic - canonical: https://aistackregistry.com/snapshots/2026-04-15/models/anthropic/index.md - text: https://aistackregistry.com/snapshots/2026-04-15/models/anthropic/index.txt - json: https://aistackregistry.com/snapshots/2026-04-15/models/anthropic/index.json - as_of: 2026-04-15T03:14:05+00:00 - models: 2 Browse - models_index_markdown: https://aistackregistry.com/snapshots/2026-04-15/models/index.md - models_index_text: https://aistackregistry.com/snapshots/2026-04-15/models/index.txt - models_index_json: https://aistackregistry.com/snapshots/2026-04-15/models/index.json - providers_index_markdown: https://aistackregistry.com/snapshots/2026-04-15/models/providers/index.md - providers_index_text: https://aistackregistry.com/snapshots/2026-04-15/models/providers/index.txt - providers_index_json: https://aistackregistry.com/snapshots/2026-04-15/models/providers/index.json Catalog - provider=anthropic model_id=claude-opus-4-6 canonical=https://aistackregistry.com/snapshots/2026-04-15/models/anthropic/claude-opus-4-6/model.json spec=https://aistackregistry.com/snapshots/2026-04-15/models/anthropic/claude-opus-4-6/spec.json defaults=https://aistackregistry.com/snapshots/2026-04-15/models/anthropic/claude-opus-4-6/recommended_defaults.json - provider=anthropic model_id=claude-sonnet-4-6 canonical=https://aistackregistry.com/snapshots/2026-04-15/models/anthropic/claude-sonnet-4-6/model.json spec=https://aistackregistry.com/snapshots/2026-04-15/models/anthropic/claude-sonnet-4-6/spec.json defaults=https://aistackregistry.com/snapshots/2026-04-15/models/anthropic/claude-sonnet-4-6/recommended_defaults.json Notes - This provider index is the human-readable drill-down for one provider's catalog. - Follow model bundle URLs from this index; do not infer sibling artifact paths.