Duck.ai is a free AI chat platform from DuckDuckGo: open https://duck.ai/ and you can anonymously use models such as GPT-4o mini, Claude 3 Haiku, Llama 3.3/4, Mistral Small 3, and o3-mini without registering. Chats are not stored on DuckDuckGo servers or used for training; records stay local and can be cleared instantly with the Fire Button.

Quick Answer
Duck.ai is a free AI chat platform launched by the search engine DuckDuckGo. You can access mainstream models such as GPT-4o mini, Claude 3 Haiku, Llama 3.3/4, Mistral Small 3, and o3-mini anonymously without registering or revealing your identity. Conversations are anonymized through proxy technology that hides your IP address; content is not stored or used for model training. Chat history is kept only on your local device and can be cleared anytime with the Fire Button.
Product Positioning
Duck.ai is not a single-model client, but an entry point that brings together several major models with a strong privacy focus. It is backed by DuckDuckGo’s search ecosystem, letting users move naturally from traditional search to AI chat: you can open the chat directly from DuckDuckGo search results, or use the !ai or !chat Bang commands to jump quickly. For everyday users, it lowers the registration and payment barrier to entering AI; for privacy-sensitive users, it emphasizes anonymization, no tracking, no logging, no training use, and states GDPR compliance.
Core Features
Multi-Model Aggregated Chat
Duck.ai supports GPT-4o mini, o3-mini, Claude 3 Haiku, Llama 3.3/4, Mistral Small 3, and other models. You can switch freely in the same interface to compare expression style, reasoning approach, and task fit across different models.
Zero-Registration Anonymous Use
No account creation or login is needed—open the webpage and start using it. The platform hides your IP address through proxy technology to avoid tying conversations directly to your personal identity.
Local Chat History Management
Recent conversation history is saved on your local device, not uploaded to DuckDuckGo servers. You can go back through past chats via “Recent.” Because data is kept locally, you should confirm whether you still need your records before clearing browser data, switching devices, or reinstalling the app.
Fire Button One-Click Clear
The signature Fire Button instantly and completely deletes all local chat history, making it useful after shared-device use, temporary consultations, or sensitive topics.
Privacy-First Image Generation
At the end of 2025, Duck.ai added an AI image generation feature (Beta) based on OpenAI models. Prompts are anonymized, generated images are stored locally, and images are labeled with C2PA-standard AI provenance watermarks. The feature is in Beta and has daily limits; check the official site to confirm actual availability and results.
Search Ecosystem and Multi-Platform Support
Duck.ai is deeply integrated with DuckDuckGo search and covers Web, iOS, Android, Mac, Windows, and browser extensions (including a sidebar mode), making it easy to switch between desktop and mobile.
How to Use
- Access the entry point: open the official website https://duck.ai/%EF%BC%8C%E6%88%96%E5%9C%A8, click the chat icon on the DuckDuckGo search page, or use the !ai or !chat Bang commands to jump quickly.
- Choose a model: use the dropdown on the home page to select the AI model you want, such as GPT-4o mini or Claude 3 Haiku.
- Enter a conversation: type a question or task description in the input box; the system forwards it to the chosen model through an anonymous proxy.
- Get a response: wait for the AI to generate an answer. You can follow up or switch models to compare responses.
- Manage history: use “Recent” to view locally saved chats; click the Fire Button to permanently delete all local records.
- Generate images: select “New Image” in the sidebar and enter a prompt to create an AI image. This capability is Beta and has daily limits, so check the official site for current details.
Use Cases
- Everyday information lookup: quickly get general knowledge like weather, news, recipes, and travel advice, with less concern about your search history being tracked.
- Academic and learning support: students can ask questions anonymously; the fact sheet notes you can use Claude for creative writing or Llama for science and technology research.
- Office productivity: draft emails, organize meeting notes, brainstorm, and write reports—especially suitable for work environments sensitive to data security.
- AI model evaluation: researchers and developers can compare answer quality and style across different large models on the same platform.
- Privacy-sensitive situations: preliminary consultations involving personal sensitive information, such as medical, legal, or psychological questions, benefit from a “not recorded or trained on” premise; however, AI replies cannot replace professional advice.
- Creative image generation: quickly generate illustrations or concept sketches while protecting privacy. Images are stored locally and carry C2PA watermarks.
Advantages
- Strong privacy protection: conversations are anonymized end to end—no tracking, no logging, no training use. The fact sheet states GDPR compliance, reducing data-leak risk at the mechanism level.
- Side-by-side model comparison: experience models from OpenAI, Anthropic, Meta, and Mistral in one place, making it easier to choose the right AI for the task.
- Zero barrier to entry: no email registration and no payment method required—open and use it immediately, lowering the psychological hurdle for everyday users.
- Local data sovereignty: chat history stays on your device, so you control your data lifecycle instead of hosting records in a third-party cloud.
- Seamless search integration: switch between traditional search and AI chat with one click; the two ways of getting information complement each other and cover more query scenarios.
Limitations and Notes
- Image generation is still in Beta and has daily limits; quality, quota, and rollout may change.
- Free access, model list, platform support, and limits are volatile details that may change with DuckDuckGo and model providers’ policies.
- Keeping chat history local is good for privacy, but it also means you need to manage backups, deletion, and expectations across devices yourself.
- AI output can still be wrong; for high-risk issues involving medical, legal, financial, or psychological matters, use it only as an initial reference and consult a qualified professional.
Price Verification Note
The public fact sheet describes Duck.ai as a free AI chat platform and emphasizes no registration and no payment method required. However, free scope, daily limits, image generation Beta rules, available models, and regional availability can all change. Before relying on pricing, quota, availability, or commercial use, check the latest terms and privacy policy on the official website https://duck.ai/.
FAQ
Does Duck.ai require registration or login?
No. The fact sheet explicitly says it offers zero-registration anonymous use—no account creation, no login. You open the webpage and start using it directly, with your IP address hidden through proxy technology.
Does Duck.ai save chats or use them for model training?
The fact sheet says conversation content is not stored or used for AI model training. Chat history is saved only on your local device and can be cleared instantly with the Fire Button; DuckDuckGo also notes that chats are anonymized.
Which models does Duck.ai support?
The public fact sheet lists GPT-4o mini, o3-mini, Claude 3 Haiku, Llama 3.3/4, and Mistral Small 3. Available models may change over time, so check the official site for the current list.
Can Duck.ai generate images?
Yes. It added an AI image generation feature (Beta) at the end of 2025, based on OpenAI models. Prompts are anonymized, images are stored locally, and images carry C2PA-standard AI provenance watermarks. The feature has daily limits.
Alternatives
If you rely more on a search entry point, you can use the AI chat directly from DuckDuckGo search results, or switch between search and chat with the !ai or !chat Bang commands. The public fact sheet also mentions a comparable direction from “Baidu AI Cloud’s AI-native application and Copilot super assistant based on ERNIE Bot,” but the table provides limited information and does not constitute a recommendation. If you need to compare, verify registration requirements, data retention policy, model capabilities, and pricing for each separately.
Official Website and Primary Sources
- Duck.ai official website: https://duck.ai/
- DuckDuckGo’s notice on the Duck.ai page: DuckDuckGo anonymizes your chats. By clicking 'Ask' you agree to our Privacy Policy and Terms of Service.
Frequently asked questions
Is Duck.ai free? Do I need to pay or add a card before using it?
The public fact sheet describes Duck.ai as a free AI chat platform with no email registration and no payment method required. You can open it and use it immediately. However, free scope, daily limits, and available models may change; for pricing and quota details, check https://duck.ai/
Where is Duck.ai chat history stored, and how do I delete it?
Recent conversation history is saved on your local device, not uploaded to DuckDuckGo servers. You can view local records through “Recent” and click the Fire Button to instantly and permanently delete all local chat history.
What is the relationship between Duck.ai and DuckDuckGo search?
Duck.ai is an AI chat platform launched by search engine DuckDuckGo. You can open AI chat directly from DuckDuckGo search results, or use the !ai or !chat Bang commands to jump quickly.
What are the limitations of Duck.ai’s image generation feature?
It is a Beta feature added at the end of 2025, based on OpenAI models. Prompts are anonymized, generated images are stored locally, and images carry C2PA-standard AI provenance watermarks. The fact sheet notes daily limits, so check the official site for current rules.
Can I rely directly on Duck.ai for medical, legal, or psychological consultations?
No. The fact sheet mentions these privacy-sensitive scenarios only for initial consultation, because conversations are not recorded or used for training. However, AI can still make mistakes, so use it only as a reference and consult a licensed professional.