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Sweep 28 Sep 2026 · 18:16Z Build v2.1.284 505 read Stable v2.1.277 Latest v2.1.284 Next v2.1.284 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 29 Sep 2026
One change · api

Create a Message Batch changedapi/beta/messages/batches/create

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+94added
Lines−84removed
From line 3,122 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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31223122 
31233123 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
31243124 
3125 - `string`
3125 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
31263126 
3127 - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more`
3128 
31293127 The model that will complete your prompt.
31303128 
31313129 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
31323130 
3131 - `"claude-sonnet-5-5"`
3132 
3133 Efficient model for coding and agents
3134 
31333135 - `"claude-fable-5-1"`
31343136 
31353137 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
from line 3146
31443146 
31453147 - `"claude-sonnet-5"`
31463148 
3147 High-performance model for coding and agents
3149 Efficient model for coding and agents
31483150 
31493151 - `"claude-fable-5"`
31503152 
from line 3206
32043206 
32053207 New class of intelligence, strongest in coding and cybersecurity
32063208 
3209 - `string`
3210 
32073211 - `name: "advisor"`
32083212 
32093213 Name of the tool.
from line 3842
38383842 
38393843 - `"fast"`
38403844 
3841 - `thinking: optional BetaThinkingConfigEnabled or BetaThinkingConfigDisabled or BetaThinkingConfigAdaptive or null`
3845 - `thinking: optional BetaThinkingConfigEnabled or BetaThinkingConfigDisabled or BetaThinkingConfigBetweenTools or BetaThinkingConfigAdaptive or null`
38423846 
38433847 - `BetaThinkingConfigEnabled object`
38443848 
from line 3884
38803884 
38813885 - `type: "disabled"`
38823886 
3887 - `BetaThinkingConfigBetweenTools object`
3888 
3889 - `type: "between_tools"`
3890 
38833891 - `BetaThinkingConfigAdaptive object`
38843892 
38853893 - `type: "adaptive"`
from line 3976
39683976 
39693977 - `stream: optional boolean`
39703978 
3971 Whether to incrementally stream the response using server-sent events.
3979 Whether to incrementally stream the response using server-sent events. When `true`, SDKs return a raw event stream.
39723980 
3973 See [streaming](https://platform.claude.com/docs/en/build-with-claude/streaming) for details.
3981 In the TypeScript, Python and Ruby SDKs, the recommended way to stream is `messages.stream()`. It sets `stream` for you and accumulates the events into the final message. See [Streaming with SDKs](https://platform.claude.com/docs/en/build-with-claude/streaming#streaming-with-sdks) for an example in each language.
39743982 
39753983 - `system: optional string or array of BetaTextBlockParam`
39763984 
from line 4013
40054013 - `BetaThinkingConfigEnabled object`
40064014 
40074015 - `BetaThinkingConfigDisabled object`
4016 
4017 - `BetaThinkingConfigBetweenTools object`
40084018 
40094019 - `BetaThinkingConfigAdaptive object`
40104020 
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