Duck.ai by DuckDuckGo keep your AI chats generation output anonymized. Personally identifiable metadata is removed before user prompts are sent to DuckDuckGo servers . Therefore chats are not identifiable and traced back to users. Model providers do not use user input for training purposes. There is zero data retention for conversations.
Current free AI models available include GPT-5.6 Luna, GPT-5.4 mini, Claude Haiku 4.5, Mistral Small 4, gpt-oss 120B, and Gemma 4 31B. More AI models are available with a monthly or yearly subscription. There is a daily limit for the free Duck.ai version.
Other significant Duck.AI features include the following:
- Chat History- Permits saving chats on the current device.
- Sync and Backup- Saves and syncs chats on all your devices.
- Shared Chat Links
- Use Approximate Location- For more relevant content, current user location can be shared
The Duck.ai interface appearance theme is customizable. Also, the display language can be changed to different languages based on user’s country.
Customize responses essentially sends prompts to AI models with messages along with instructions on how to respond based on selected values. These values include tone of responses, length of responses, AI role, your role, and ask clarifying questions.
Duck.ai also has an image generator based on user text or a submitted image. Voice chat functions similar to chat with the same privacy considerations.