Claude Opus 5.5
Available · Language, Multimodal, Reasoning · Primary source available
- Lifecycle
- Milestone or variant
- Related model
- Source event
- AI Radar coverage
- Only month or year known
- 4 events
2026
As of 10 October 2026
Released +1
Predecessor Claude Opus 5
2 news items
All events, in order
- Lineage Predecessor Claude Opus 5
- Lifecycle Released
- Source Announcement published
- September 2026 AI Radar 2 news items · Snapshots kept after items leave the live feed
← The full record of Claude Opus 5.5, with every claim and its sources