Package dev.langchain4j.model.anthropic

Class AnthropicChatModel

java.lang.Object

dev.langchain4j.model.anthropic.AnthropicChatModel

All Implemented Interfaces:

dev.langchain4j.model.chat.ChatLanguageModel

public class AnthropicChatModel
extends Object
implements dev.langchain4j.model.chat.ChatLanguageModel

Represents an Anthropic language model with a Messages (chat) API.
More details are available here.

It supports Images as inputs. UserMessages can contain one or multiple ImageContents. Images must not be represented as URLs; they should be Base64-encoded strings and include a mimeType.

The content of SystemMessages is sent using the "system" parameter. If there are multiple SystemMessages, they are concatenated with a double newline (\n\n).

Does not support tools.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	AnthropicChatModel.AnthropicChatModelBuilder

Method Summary

Modifier and Type	Method	Description
dev.langchain4j.model.output.Response<dev.langchain4j.data.message.AiMessage>	generate(List<dev.langchain4j.data.message.ChatMessage> messages)
static AnthropicChatModel	withApiKey(String apiKey)	Creates an instance of AnthropicChatModel with the specified API key.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface dev.langchain4j.model.chat.ChatLanguageModel

generate, generate, generate, generate

Method Details

withApiKey

public static AnthropicChatModel withApiKey(String apiKey)

Creates an instance of AnthropicChatModel with the specified API key.

Parameters:

apiKey - the API key for authentication

Returns:

an AnthropicChatModel instance

generate

public dev.langchain4j.model.output.Response<dev.langchain4j.data.message.AiMessage> generate(List<dev.langchain4j.data.message.ChatMessage> messages)

Specified by:

generate in interface dev.langchain4j.model.chat.ChatLanguageModel