Versions changedapi/beta/agents/versions
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Lines−66removed
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185
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First seen
14 Aug 2026
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Recorded edits12to this page, all time
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185185
186186 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
187187
188 - `string`
188 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
189189
190 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
191
192190 The model that will power your agent.
193191
194192 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
195193
194 - `"claude-sonnet-5-5"`
195
196 Efficient model for coding and agents
197
196198 - `"claude-opus-5-5"`
197199
198200 Powerful intelligence for coding, knowledge work, and long-running agents
from line 205
203205
204206 - `"claude-sonnet-5"`
205207
206 High-performance model for coding and agents
208 Efficient model for coding and agents
207209
208210 - `"claude-fable-5"`
209211
from line 254
252254 - `"claude-sonnet-4-5-20250929"`
253255
254256 High-performance model for agents and coding
257
258 - `string`
255259
256260 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
257261
No line in this hunk matches that.