# AI Stack Registry - Models Provider anthropic

- Markdown: https://aistackregistry.com/snapshots/2026-06-01/models/anthropic/index.md
- Text: https://aistackregistry.com/snapshots/2026-06-01/models/anthropic/index.txt
- JSON: https://aistackregistry.com/snapshots/2026-06-01/models/anthropic/index.json
- Last built: 2026-06-01T03:21:45+00:00
- Models: 4

## Browse
- Models Markdown: https://aistackregistry.com/snapshots/2026-06-01/models/index.md
- Models text: https://aistackregistry.com/snapshots/2026-06-01/models/index.txt
- Models JSON: https://aistackregistry.com/snapshots/2026-06-01/models/index.json
- Providers Markdown: https://aistackregistry.com/snapshots/2026-06-01/models/providers/index.md
- Providers text: https://aistackregistry.com/snapshots/2026-06-01/models/providers/index.txt
- Providers JSON: https://aistackregistry.com/snapshots/2026-06-01/models/providers/index.json

## Catalog
- anthropic claude-opus-4-6. Bundle: https://aistackregistry.com/snapshots/2026-06-01/models/anthropic/claude-opus-4-6/model.json. Spec: https://aistackregistry.com/snapshots/2026-06-01/models/anthropic/claude-opus-4-6/spec.json. Defaults: https://aistackregistry.com/snapshots/2026-06-01/models/anthropic/claude-opus-4-6/recommended_defaults.json.
- anthropic claude-opus-4-7. Bundle: https://aistackregistry.com/snapshots/2026-06-01/models/anthropic/claude-opus-4-7/model.json. Spec: https://aistackregistry.com/snapshots/2026-06-01/models/anthropic/claude-opus-4-7/spec.json. Defaults: https://aistackregistry.com/snapshots/2026-06-01/models/anthropic/claude-opus-4-7/recommended_defaults.json.
- anthropic claude-opus-4-8. Bundle: https://aistackregistry.com/snapshots/2026-06-01/models/anthropic/claude-opus-4-8/model.json. Spec: https://aistackregistry.com/snapshots/2026-06-01/models/anthropic/claude-opus-4-8/spec.json. Defaults: https://aistackregistry.com/snapshots/2026-06-01/models/anthropic/claude-opus-4-8/recommended_defaults.json.
- anthropic claude-sonnet-4-6. Bundle: https://aistackregistry.com/snapshots/2026-06-01/models/anthropic/claude-sonnet-4-6/model.json. Spec: https://aistackregistry.com/snapshots/2026-06-01/models/anthropic/claude-sonnet-4-6/spec.json. Defaults: https://aistackregistry.com/snapshots/2026-06-01/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.