product · fact
Claude 2.1 release date
As of November 4, 2026, the AsOf record says Claude 2.1 was released on November 21, 2023, from a primary source (anthropic.com). The record holds 1 claim on Claude 2.1's release, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.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 2.1
Every dated value
| value | valid from | valid to | status | conf | sources | claim |
|---|---|---|---|---|---|---|
| Claude 2.1 | 2023-11-21 | valid | 1 source for release date Claude 2.1 | clm_9B3815438148 |
Questions this record answers
- When was Claude 2.1 released?