Versions changedapi/beta/agents/versions
Nearest release: v2.1.281, published 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+10added
Lines−2removed
From line
37
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits11to this page, all time
The whole hunk
from line 37, old and new numbered
/
from line 37
3737
3838 - `string`
3939
40 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 43 more`
40 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 45 more`
4141
4242 - `"message-batches-2024-09-24"`
4343
from line 131
131131
132132 - `"compact-2026-09-04"`
133133
134 - `"inline-tools-2026-09-15"`
135
136 - `"mcp-client-2026-09-15"`
137
134138- `"anthropic-workspace-id": optional string`
135139
136140 Optional header to select the Workspace for this request. The value is a Workspace ID (for example, `wrkspc_011CZkZaBF1tNoB5wlCeusgy`).
from line 185
181185
182186 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
183187
184 - `"claude-fable-5-1" or "claude-sonnet-5" or "claude-fable-5" or 11 more`
188 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
185189
186190 The model that will power your agent.
187191
188192 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
193
194 - `"claude-opus-5-5"`
195
196 Powerful intelligence for coding, knowledge work, and long-running agents
189197
190198 - `"claude-fable-5-1"`
191199
No line in this hunk matches that.