Editorial dossier · verified Sep 12, 2026
Mythos
Named model family; exact versions and aliases require their own dated evidence.
Reader decision: Use an immutable version ID in evaluation records; never infer a version’s lifecycle from the family name.
What is confirmed
Claude products, features, models and plans is the primary source for this dated record. It supports the named entity, but does not by itself prove account-level access, rollout completion, cost, region support, or feature parity.
Operator action
- Use an immutable version ID in evaluation records; never infer a version’s lifecycle from the family name.
- Check the linked release-note lane before changing a workflow or integration.
- Record the observed account, region and version conditions in your own change record.
Known unknowns
No universal availability claim is made here. Entitlements, rollout timing, limits, pricing and partner-route behavior require current, scoped evidence.
Freshness and next path
Owner: Anthropic Updates Editorial Desk · review target: every 30 days or on a material release note. Continue to material changes, coverage status, or revisions.