Anthropic

Jan supports all of Anthropic’s models via API integration, allowing you to chat with Claude’s latest Opus, Sonnet and Haiku models.

Integrate Anthropic API with Jan

Step 1: Get Your API Key

1. Visit Anthropic Console and sign in
2. Create & copy a new API key or copy your existing one

Note

Ensure your API key has sufficient credits

Step 2: Configure Jan

1. Navigate to the Settings page
2. Under Model Providers, select Anthropic
3. Insert your API Key

Step 3: Start Using Anthropic’s Models

1. In any existing Chat or create a new one
2. Select an Anthropic model from model selector
3. Start chatting

Available Anthropic Models

Jan automatically includes Anthropic’s available models. In case you want to use a specific Anthropic model that you cannot find in Jan, follow instructions in Add Cloud Models:

• See list of available models in Anthropic Models.
• The id property must match the model name in the list. For example, claude-opus-4@20250514, claude-sonnet-4@20250514, or claude-3-5-haiku@20241022.

Troubleshooting

Common issues and solutions:

1. API Key Issues

• Verify your API key is correct and not expired
• Check if you have billing set up on your Anthropic account
• Ensure you have access to the model you’re trying to use

2. Connection Problems

• Check your internet connection
• Verify Anthropic’s system status
• Look for error messages in Jan’s logs

3. Model Unavailable

• Confirm your API key has access to the model
• Check if you’re using the correct model ID
• Verify your Anthropic account has the necessary permissions

Need more help? Join our Discord community or check the Anthropic’s documentation.