List Session Thread Events changedapi/beta/sessions/threads/events/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
From line
1,657
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits14to this page, all time
The whole hunk
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16571657
16581658 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
16591659
1660 - `string`
1660 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
16611661
1662 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
1663
16641662 The model that will power your agent.
16651663
16661664 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
16671665
1666 - `"claude-sonnet-5-5"`
1667
1668 Efficient model for coding and agents
1669
16681670 - `"claude-opus-5-5"`
16691671
16701672 Powerful intelligence for coding, knowledge work, and long-running agents
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16751677
16761678 - `"claude-sonnet-5"`
16771679
1678 High-performance model for coding and agents
1680 Efficient model for coding and agents
16791681
16801682 - `"claude-fable-5"`
16811683
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17241726 - `"claude-sonnet-4-5-20250929"`
17251727
17261728 High-performance model for agents and coding
1729
1730 - `string`
17271731
17281732 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
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