Completions

Legacy API. The Text Completions API is Anthropic's older interface. For new projects, use the Messages API instead.

The Completions resource is included for backward compatibility with projects that still use it.

use Anthropic\Laravel\Facades\Anthropic;

$response = Anthropic::completions()->create([
    'model' => 'claude-2.1',
    'prompt' => "\n\nHuman: Hello, Claude\n\nAssistant:",
    'max_tokens_to_sample' => 100,
    'temperature' => 0,
]);

$response->completion;  // ' Hello! Nice to meet you.'
$response->stop_reason; // 'stop_sequence'
$response->model;       // 'claude-2.1'

The prompt format uses specific \n\nHuman: / \n\nAssistant: turn markers rather than a messages array.

$stream = Anthropic::completions()->createStreamed([
    'model' => 'claude-2.1',
    'prompt' => 'Hi',
    'max_tokens_to_sample' => 70,
]);

foreach ($stream as $response) {
    echo $response->completion;
}

For the full request and response specification, see the Completions page in the PHP docs or the Text Completions API reference on the Anthropic docs.