Batches changedapi/beta/messages/batches
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31273127 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
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3129 - `"claude-haiku-5-5"`
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3131 Fastest model for high-volume, real-time tasks
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31293133 - `"claude-sonnet-5-5"`
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31313135 Efficient model for coding and agents
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73657369 This is how the tool will be called by the model and in `tool_use` blocks.
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7367 - `allowed_callers: optional array of "direct" or "code_execution_20250825" or "code_execution_20260120" or "code_execution_20260521"`
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7371 - `allowed_callers: optional ar
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