List Session Threads changedapi/beta/sessions/threads/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.
Recorded here
Lines+70added
Lines−66removed
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181
where the diff opens
First seen
14 Aug 2026
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Recorded edits12to this page, all time
The whole hunk
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181181
182182 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
183183
184 - `string`
184 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
185185
186 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
187
188186 The model that will power your agent.
189187
190188 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
191189
190 - `"claude-sonnet-5-5"`
191
192 Efficient model for coding and agents
193
192194 - `"claude-opus-5-5"`
193195
194196 Powerful intelligence for coding, knowledge work, and long-running agents
from line 201
199201
200202 - `"claude-sonnet-5"`
201203
202 High-performance model for coding and agents
204 Efficient model for coding and agents
203205
204206 - `"claude-fable-5"`
205207
from line 250
248250 - `"claude-sonnet-4-5-20250929"`
249251
250252 High-performance model for agents and coding
253
254 - `string`
251255
252256 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
253257
No line in this hunk matches that.