Claude 2.1
Retired · Language · Primary source available
- Lifecycle
- Milestone or variant
- Related model
- Source event
- AI Radar coverage
- Only month or year known
- 7 events
2023
2024
2025
2026
As of 10 October 2026
Released +1
Deprecated
Retired
Predecessor Claude 2
Successor Claude 3 Opus +1
All events, in order
- Lineage Predecessor Claude 2
- Lifecycle Released
- Source Announcement published
- Lineage Successor Claude 3 Opus
- Lineage Successor Claude 3 Sonnet
- Lifecycle Deprecated
- Lifecycle Retired
← The full record of Claude 2.1, with every claim and its sources