product · fact
Claude Sonnet 4.5 deprecation
As of November 4, 2026, the AsOf record says Claude Sonnet 4.5 was deprecated on September 30, 2026 (as claude-sonnet-4-5-20250929), from a primary source (platform.claude.com). The record holds 1 claim on Claude Sonnet 4.5's deprecation, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.
- current deprecation
- claude-sonnet-4-5-20250929
Every dated value
| value | valid from | valid to | status | conf | sources | claim |
|---|---|---|---|---|---|---|
| claude-sonnet-4-5-20250929 | 2026-09-30 | valid | 1 source for deprecation claude-sonnet-4-5-20250929 | clm_CDD27AF61D3F |
Questions this record answers
- When was Claude Sonnet 4.5 deprecated?