Anthropic added claude-fable-5-1 to the list of models it will answer with.
AnthropicMODEL-ROSTERADDEDTUE SEP 1, 18:26
The line, as the page carries it
+claude-fable-5-1: "Active | N/A | Not sooner than September 1, 2027"
The record
| DOCUMENT | https://platform.claude.com/docs/en/about-claude/model-deprecations |
|---|---|
| SOURCE | anthropic-deprecations |
| ROW | claude-fable-5-1 |
| OPERATION | added |
| BEFORE | Nothing was recorded because the row did not exist. |
| AFTER | Active | N/A | Not sooner than September 1, 2027 |
| READ AT | 2026-09-01T18:26:35.462Z |
| SIGNALS | date, modelId |
What went out
- BLUESKY2026-09-04 23:13Anthropic added a new model, claude-fable-5-1, to the model deprecations page in its Claude platform docs. The row lists it as "Active | N/A | Not sooner than September 1, 2027", which is the earliest date Anthropic says it could retire the model. #TechBluesky