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Model providers

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To run Docker Agent, you need a model provider. You can either use a cloud provider with an API key or run models locally with Docker Model\ Runner.

This guide covers cloud providers. For the local alternative, see Local\ models with Docker Model Runner.

Supported providers

Docker Agent supports these cloud model providers:

• Anthropic - Claude models
• OpenAI - GPT models
• Google - Gemini models

Anthropic

Anthropic provides the Claude family of models, including Claude Sonnet and Claude Opus.

To get an API key:

1. Go to console.anthropic.com.
2. Sign up or sign in to your account.
3. Navigate to the API Keys section.
4. Create a new API key.
5. Copy the key.

Set your API key as an environment variable:

$ export ANTHROPIC_API_KEY=your_key_here

Use Anthropic models in your agent configuration:

agents:
  root:
    model: anthropic/claude-sonnet-4-5
    instruction: You are a helpful coding assistant

Available models include:

• anthropic/claude-sonnet-4-5
• anthropic/claude-opus-4-5
• anthropic/claude-haiku-4-5

OpenAI

OpenAI provides the GPT family of models, including GPT-5 and GPT-5 mini.

To get an API key:

1. Go to platform.openai.com/api-keys.
2. Sign up or sign in to your account.
3. Navigate to the API Keys section.
4. Create a new API key.
5. Copy the key.

Set your API key as an environment variable:

$ export OPENAI_API_KEY=your_key_here

Use OpenAI models in your agent configuration:

agents:
  root:
    model: openai/gpt-5
    instruction: You are a helpful coding assistant

Available models include:

• openai/gpt-5
• openai/gpt-5-mini

Google Gemini

Google provides the Gemini family of models.

To get an API key:

1. Go to aistudio.google.com/apikey.
2. Sign in with your Google account.
3. Create an API key.
4. Copy the key.

Set your API key as an environment variable:

$ export GOOGLE_API_KEY=your_key_here

Use Gemini models in your agent configuration:

agents:
  root:
    model: google/gemini-2.5-flash
    instruction: You are a helpful coding assistant

Available models include:

• google/gemini-2.5-flash
• google/gemini-2.5-pro

OpenAI-compatible providers

You can use the openai provider type to connect to any model or provider that implements the OpenAI API specification. This includes services like Azure OpenAI, local inference servers, and other compatible endpoints.

Configure an OpenAI-compatible provider by specifying the base URL:

agents:
  root:
    model: openai/your-model-name
    instruction: You are a helpful coding assistant
    provider:
      base_url: https://your-provider.example.com/v1

By default, Docker Agent uses the OPENAI_API_KEY environment variable for authentication. If your provider uses a different variable, specify it with token_key:

agents:
  root:
    model: openai/your-model-name
    instruction: You are a helpful coding assistant
    provider:
      base_url: https://your-provider.example.com/v1
      token_key: YOUR_PROVIDER_API_KEY

What's next

• Follow the tutorial to build your first agent
• Learn about local models with Docker Model Runner as an alternative to cloud providers
• Review the configuration reference for advanced model settings