Get Agent changedapi/beta/agents/retrieve
Nearest release: v2.1.284, published 8 hours 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.
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Lines−66removed
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179
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14 Aug 2026
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Recorded edits12to this page, all time
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180180 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
181181
182 - `string`
182 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
183183
184 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
185
186184 The model that will power your agent.
187185
188186 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
189187
188 - `"claude-sonnet-5-5"`
189
190 Efficient model for coding and agents
191
190192 - `"claude-opus-5-5"`
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192194 Powerful intelligence for coding, knowledge work, and long-running agents
from line 199
197199
198200 - `"claude-sonnet-5"`
199201
200 High-performance model for coding and agents
202 Efficient model for coding and agents
201203
202204 - `"claude-fable-5"`
203205
from line 248
246248 - `"claude-sonnet-4-5-20250929"`
247249
248250 High-performance model for agents and coding
251
252 - `string`
249253
250254 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
251255
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