ModelClock
Retired
Retired on Aug 5, 2026
Anthropic lists August 5, 2026 as the shutdown date. Listed model identifier.
- Hosting route
- First-party API
- Affected scope
- Listed model identifier
- Replacement
- None published
- Announced
- Not published
- First seen by ModelClock
- Oct 3, 2026
What the provider published
platform.claude.com ↗| claude-opus-4-1-20250805 | Retired | June 5, 2026 | August 5, 2026 |
Read from the provider's table: each value comes from its row, with the row's scope kept.