product · fact
Claude Opus 5.5 release date
As of November 4, 2026, the AsOf record says Claude Opus 5.5 was released on September 22, 2026, from a primary source (platform.claude.com). The record holds 1 claim on Claude Opus 5.5's release, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.
- current release date
- Claude Opus 5.5
Every dated value
| value | valid from | valid to | status | conf | sources | claim |
|---|---|---|---|---|---|---|
| Claude Opus 5.5 | 2026-09-22 | valid | 1 source for release date Claude Opus 5.5 | clm_F93B2A65D6D9 |
Questions this record answers
- When was Claude Opus 5.5 released?