Follow Discord
Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial
One change · api

Or, for Claude Mythos 5.1, which offers the same capabilities to verified organizations: changedmodels/fable-5-1/migration-guide

Nearest release: v2.1.301, published 11 hours before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Recorded here
Lines+3added
Lines−1removed
From line 11 where the diff opens
First seen 1 Sep 2026 this site's first read of the page
Recorded edits29to this page, all time

The whole hunk

from line 11, old and new numbered
/
lines
from line 11
1111<Tip>
1212 **Automate your migration with the Claude API skill.** In Claude Code, run `/claude-api migrate` to invoke the bundled [Claude API skill](https://platform.claude.com/docs/en/agents-and-tools/agent-skills/claude-api-skill#migrating-to-a-newer-claude-model). It works for any current Claude model as the target:
1313 
14 ```text wrap
14 Let Claude Code migrate your code for you
15 
16 ```text
1517 /claude-api migrate this project to claude-fable-5-1
1618 ```
1719 
Feedback