List Agent Versions changedapi/beta/agents/versions/list
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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183
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14 Aug 2026
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Recorded edits12to this page, all time
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183183
184184 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
185185
186 - `string`
186 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
187187
188 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
189
190188 The model that will power your agent.
191189
192190 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
193191
192 - `"claude-sonnet-5-5"`
193
194 Efficient model for coding and agents
195
194196 - `"claude-opus-5-5"`
195197
196198 Powerful intelligence for coding, knowledge work, and long-running agents
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201203
202204 - `"claude-sonnet-5"`
203205
204 High-performance model for coding and agents
206 Efficient model for coding and agents
205207
206208 - `"claude-fable-5"`
207209
from line 252
250252 - `"claude-sonnet-4-5-20250929"`
251253
252254 High-performance model for agents and coding
255
256 - `string`
253257
254258 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
255259
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