Get a Model changedapi/beta/models/retrieve
Nearest release: v2.1.314, published 6 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+5added
Lines−1removed
From line
135
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits24to this page, all time
The whole hunk
from line 135, old and new numbered
/
from line 135
135135
136136 - `"webhooks-2026-10-07"`
137137
138 - `"message-threads-2026-08-12"`
139
140 - `"analytics-usage-cost-2026-08-24"`
141
138142- `"anthropic-workspace-id": optional string`
139143
140144 Optional header to select the Workspace for this request. The value is a Workspace ID (for example, `wrkspc_011CZkZaBF1tNoB5wlCeusgy`).
from line 463
459463 "deprecated_at": "2019-12-27T18:11:19.117Z",
460464 "display_name": "Claude Opus 5.5",
461465 "lifecycle": "active",
462 "line": "haiku",
466 "line": "opus",
463467 "max_input_tokens": 0,
464468 "max_tokens": 0,
465469 "retires_at": "2019-12-27T18:11:19.117Z",
No line in this hunk matches that.