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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
HomeDocsClaude Developer Platform 22 Oct 2026
One change · api

Models changedapi/beta/models

Nearest release: v2.1.309, published 2 hours after 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−4removed
From line 399 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits23to this page, all time

The whole hunk

from line 399, old and new numbered
/
lines
from line 399
399399 
400400```bash
401401curl https://api.anthropic.com/v1/models \
402 -H 'anthropic-version: 2023-06-01' \
403 -H "X-Api-Key: $ANTHROPIC_API_KEY"
402 -H 'anthropic-version: 2026-10-21' \
403 -H "Authorization: Bearer $ANTHROPIC_API_KEY"
404404```
405405 
406406#### Response (200)
from line 870
870870 
871871```bash
872872curl https://api.anthropic.com/v1/models/$MODEL_ID \
873 -H 'anthropic-version: 2023-06-01' \
874 -H "X-Api-Key: $ANTHROPIC_API_KEY"
873 -H 'anthropic-version: 2026-10-21' \
874 -H "Authorization: Bearer $ANTHROPIC_API_KEY"
875875```
876876 
877877#### Response (200)
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