Claude Opus 4
Retired · Language, Multimodal, Reasoning · Milestone · 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 3 Opus
Successor Claude Opus 4.1
System card published
All events, in order
- Lineage Predecessor Claude 3 Opus
- Source System card published
- Lifecycle Released
- Source Announcement published
- Lineage Successor Claude Opus 4.1
- Lifecycle Deprecated
- Lifecycle Retired
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