Anthropic (Claude)

The Anthropic plugin provides access to Claude models.

Installation

<dependency>
    <groupId>com.google.genkit</groupId>
    <artifactId>genkit-plugin-anthropic</artifactId>
    <version>1.0.0-SNAPSHOT</version>
</dependency>

Configuration

export ANTHROPIC_API_KEY=your-api-key

Usage

import com.google.genkit.plugins.anthropic.AnthropicPlugin;

Genkit genkit = Genkit.builder()
    .plugin(AnthropicPlugin.create())
    .build();

ModelResponse response = genkit.generate(
    GenerateOptions.builder()
        .model("anthropic/claude-sonnet-4-5-20250929")
        .prompt("Tell me about AI")
        .build());

Available models

Claude 4.5 family

• anthropic/claude-opus-4-5-20251101
• anthropic/claude-sonnet-4-5-20250929
• anthropic/claude-haiku-4-5-20251001

Claude 4 family

• anthropic/claude-4-*

Claude 3 family

• anthropic/claude-3-opus-*
• anthropic/claude-3-sonnet-*
• anthropic/claude-3-haiku-*

Features

• Text generation
• Streaming
• Tool calling

Sample

See the anthropic sample.