Get Session Thread changedapi/beta/sessions/threads/retrieve
Nearest release: v2.1.258, published an hour 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+12added
Lines−2removed
From line
18
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits26to this page, all time
The whole hunk
from line 18, old and new numbered
/
from line 18
1818
1919 - `string`
2020
21 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 38 more`
21 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 41 more`
2222
2323 - `"message-batches-2024-09-24"`
2424
from line 102
102102
103103 - `"ce-user-management-2026-07-13"`
104104
105 - `"mid-conversation-output-config-2026-07-01"`
106
107 - `"thinking-binding-controls-2026-08-01"`
108
109 - `"mid-conversation-system-clear-at-2026-08-21"`
110
105111## Returns
106112
107113- `BetaManagedAgentsSessionThread object`
from line 148
142148
143149 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
144150
145 - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more`
151 - `"claude-fable-5-1" or "claude-sonnet-5" or "claude-fable-5" or 11 more`
146152
147153 The model that will power your agent.
148154
149155 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
156
157 - `"claude-fable-5-1"`
158
159 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
150160
151161 - `"claude-sonnet-5"`
152162
No line in this hunk matches that.