Events changedapi/beta/sessions/threads/events
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Recorded here
Lines+140added
Lines−132removed
From line
1,659
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits15to this page, all time
The whole hunk
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16591659
16601660 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
16611661
1662 - `string`
1662 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
16631663
1664 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
1665
16661664 The model that will power your agent.
16671665
16681666 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
16691667
1668 - `"claude-sonnet-5-5"`
1669
1670 Efficient model for coding and agents
1671
16701672 - `"claude-opus-5-5"`
16711673
16721674 Powerful intelligence for coding, knowledge work, and long-running agents
from line 1679
16771679
16781680 - `"claude-sonnet-5"`
16791681
1680 High-performance model for coding and agents
1682 Efficient model for coding and agents
16811683
16821684 - `"claude-fable-5"`
16831685
from line 1729
17271729
17281730 High-performance model for agents and coding
17291731
1732 - `string`
1733
17301734 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
17311735
17321736 How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied.
from line 4061
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40584062 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
40594063
4060 - `string`
4064 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
40614065
4062 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
4063
40644066 The model that will power your agent.
40654067
40664068 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
40674069
4070 - `"claude-sonnet-5-5"`
4071
4072 Efficient model for coding and agents
4073
40684074 - `"claude-opus-5-5"`
40694075
40704076 Powerful intelligence for coding, knowledge work, and long-running agents
from line 4081
40754081
40764082 - `"claude-sonnet-5"`
40774083
4078 High-performance model for coding and agents
4084 Efficient model for coding and agents
40794085
40804086 - `"claude-fable-5"`
40814087
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41244130 - `"claude-sonnet-4-5-20250929"`
41254131
41264132 High-performance model for agents and coding
4133
4134 - `string`
41274135
41284136 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
41294137
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