Message Batches API changedbuild-with-claude/batch-processing
Nearest release: v2.1.321, published under an hour 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+4added
Lines−0removed
From line
8
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits33to this page, all time
The whole hunk
from line 8, old and new numbered
/
from line 8
88 eligibility: not-eligible
99 note: 29-day retention; async storage required.
1010 supportedModels:
11 - claude-fable-5-2
12 - claude-mythos-5-2
1113 - claude-fable-5-1
1214 - claude-mythos-5-1
1315 - claude-fable-5
from line 109
107109
108110| Model | Batch input | Batch output |
109111| :--------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :----------- | :------------ |
112| Claude Fable 5.2 | $4 / MTok | $20 / MTok |
113| Claude Mythos 5.2 ([limited availability](https://support.claude.com/en/articles/14604842)) | $4 / MTok | $20 / MTok |
110114| Claude Fable 5.1 | $5 / MTok | $25 / MTok |
111115| Claude Mythos 5.1 ([limited availability](https://support.claude.com/en/articles/14604842)) | $5 / MTok | $25 / MTok |
112116| Claude Fable 5 | $5 / MTok | $25 / MTok |
No line in this hunk matches that.