DuckDuckGo is enhancing its AI Chat feature (Duck.ai) by allowing users to customize the system prompts of integrated AI models like Claude. This feature, accessible directly through Duck.ai's prompt bar, gives users more control over the chatbot's responses and behavior. Customizing system prompts allows users to adjust the tone and direction of the AI's responses. This update addresses the need for more user control over AI interactions while maintaining DuckDuckGo's commitment to privacy.