Create Agent changedapi/beta/agents/create
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+16added
Lines−4removed
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17
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
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1717
1818 - `string`
1919
20 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 43 more`
20 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 45 more`
2121
2222 - `"message-batches-2024-09-24"`
2323
from line 111
111111
112112 - `"compact-2026-09-04"`
113113
114 - `"inline-tools-2026-09-15"`
115
116 - `"mcp-client-2026-09-15"`
117
114118- `"anthropic-workspace-id": optional string`
115119
116120 Optional header to select the Workspace for this request. The value is a Workspace ID (for example, `wrkspc_011CZkZaBF1tNoB5wlCeusgy`).
from line 127
123127
124128 Model identifier. Accepts the [model string](https://platform.claude.com/docs/en/about-claude/models/overview#latest-models-comparison), e.g. `claude-opus-5`, or a `model_config` object for additional configuration control
125129
126 - `BetaManagedAgentsModel = "claude-fable-5-1" or "claude-sonnet-5" or "claude-fable-5" or 11 more or string`
130 - `BetaManagedAgentsModel = "claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more or string`
127131
128132 The model that will power your agent.
129133
130134 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
131135
132 - `"claude-fable-5-1" or "claude-sonnet-5" or "claude-fable-5" or 11 more`
136 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
133137
134138 The model that will power your agent.
135139
136140 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
137141
142 - `"claude-opus-5-5"`
143
144 Powerful intelligence for coding, knowledge work, and long-running agents
145
138146 - `"claude-fable-5-1"`
139147
140148 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
from line 883
875883
876884 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
877885
878 - `"claude-fable-5-1" or "claude-sonnet-5" or "claude-fable-5" or 11 more`
886 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
879887
880888 The model that will power your agent.
881889
882890 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
891
892 - `"claude-opus-5-5"`
893
894 Powerful intelligence for coding, knowledge work, and long-running agents
883895
884896 - `"claude-fable-5-1"`
885897
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