anthropics-claude-api/php/claude-api/batches.md

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Message Batches - PHP

Message Batches API

$batch = $client->messages->batches->create(requests: [
    ['customId' => 'req-1', 'params' => ['model' => 'claude-opus-5-5', 'maxTokens' => 1024, 'messages' => [...]]],
    ['customId' => 'req-2', 'params' => [...]],
]);
// Poll $client->messages->batches->retrieve($batch->id) until processingStatus === 'ended',
// then iterate $client->messages->batches->results($batch->id).