Anthropic

Configuration

'anthropic' => [
    'api_key' => env('ANTHROPIC_API_KEY', ''),
    'version' => env('ANTHROPIC_API_VERSION', '2023-06-01'),
]

Considerations

Message Order

• Message order matters. Anthropic is strict about the message order being:

1. UserMessage
2. AssistantMessage
3. UserMessage

Structured Output

While Anthropic models don't have native JSON mode or structured output like some providers, Prism implements a robust workaround for structured output:

• We automatically append instructions to your prompt that guide the model to output valid JSON matching your schema
• If the response isn't valid JSON, Prism will raise a PrismException

Limitations

Messages

Does not support the SystemMessage message type, we automatically convert SystemMessage to UserMessage.

Images

Does not support Image::fromURL