Duck.ai
Duck.ai is a free private AI chat service from DuckDuckGo that anonymizes conversations and needs no account. It offers multiple free models including GPT-5.4 nano, Claude Haiku 4.5, and Mistral Small 4, plus voice chat, image generation and editing, and photo or PDF attachments. Subscriber-exclusive flagship models are available for users who want them, all inside the DuckDuckGo browser on web, iOS, and Android.
What is Duck.ai?
Duck.ai is the dedicated AI chat destination from DuckDuckGo, the privacy-focused search company, offering free access to multiple large language models through an interface that anonymizes every conversation. Launched as part of DuckDuckGo's push to bring private AI to the mainstream, the service requires no account and no personal information, and the company states that chats are anonymized, meaning they are not associated with a user's identity or used to build a profile. The model picker gives users a choice between lightweight models for everyday use, including GPT-5.4 nano, GPT-5.4 mini, Claude Haiku 4.5, Mistral Small 4, gpt-oss 120B, and Gemma 4 31B, while a subscriber tier unlocks larger models such as GPT-5.4, Claude Sonnet 4.6, and Claude Opus 4.8. In addition to text chat, Duck.ai supports voice chat for spoken questions, image generation and editing tools, and attachments so users can drop in photos or PDF files and ask questions about their contents. A tools menu and a reasoning mode extend the assistant's capabilities for tasks that need search grounding or step-by-step thinking. The service is accessible on the web at duck.ai, inside the DuckDuckGo browser apps for iOS and Android, and through the DuckDuckGo desktop apps. Because DuckDuckGo does not require an account for the free tier, the barrier to entry is essentially zero, which makes Duck.ai one of the easiest ways to compare multiple models in a privacy-preserving environment. The service is part of DuckDuckGo's broader privacy product line, and its browser apps integrate the chat experience alongside search, so users can switch between private search and private AI chat without changing tools. The interface includes chat suggestions to help users get started, and a how-it-works panel explains the privacy mechanics. Because DuckDuckGo does not require an account for the free tier, the barrier to entry is essentially zero, which makes Duck.ai one of the easiest ways to compare multiple models in a privacy-preserving environment.
Duck.ai Core Features
Anonymous chats
DuckDuckGo anonymizes conversations so they are not tied to your identity or used to build a profile.
Multiple free models
Choose from GPT-5.4 nano, GPT-5.4 mini, Claude Haiku 4.5, Mistral Small 4, gpt-oss 120B, and Gemma 4 31B.
Subscriber-exclusive models
Unlock GPT-5.4, Claude Sonnet 4.6, and Claude Opus 4.8 with a paid subscription.
No account required
The free tier works immediately in any browser with no signup or personal data.
Voice chat
Dictate your questions and get spoken answers for hands-free use.
Image generation and editing
Create and edit images directly inside the chat interface.
File attachments
Drop in photos or PDFs and ask questions about their contents.
Tools and reasoning mode
Ground answers with search tools or request step-by-step reasoning.
Who is Duck.ai for?
Duck.ai is built for privacy-conscious consumers who want to use AI chatbots without surrendering their personal data or creating yet another account. It suits everyday users who want quick answers, brainstorming help, or writing assistance from a choice of models, and who prefer that chats are anonymized rather than stored and tied to a profile. Students can use it for research and study questions, while professionals who handle sensitive information at work may appreciate a chat service that does not associate conversations with their identity. The included image generation and editing features appeal to casual creators and social media users, and the voice chat mode is convenient for hands-free questions. People who already use DuckDuckGo as their default browser will find it a natural addition, and the subscriber tier targets power users who want access to the latest flagship models from OpenAI, Anthropic, and others in one place, all while keeping the free tier genuinely useful for everyone else. The service also appeals to travelers and people in regions where data privacy is a concern, and to anyone tired of chatbots that demand an email address before the first question. Because it runs inside the DuckDuckGo browser, it is a natural fit for users who already switched their search and browsing to privacy-first tools, and the subscriber tier gives enthusiasts access to flagship models without opening accounts with each provider.
Duck.ai Use Cases
Ask everyday questions privately without creating an AI account or sharing personal data.
Compare responses from several models side by side by switching the model picker between chats.
Upload a PDF and ask for a summary of its key points in plain language.
Generate a social media image and then edit it with follow-up prompts in the same chat.
Use voice chat to ask questions hands-free while cooking, driving, or commuting.
Draft emails, brainstorm ideas, or get writing help with a privacy-preserving assistant.
Duck.ai Pros and Cons
Pros
- Free to use with no account, no phone number, and no personal data required.
- Offers a real choice of models from multiple providers in one interface.
- Chats are anonymized by DuckDuckGo, addressing a common privacy concern with AI chat.
- Works across web, iOS, and Android through the DuckDuckGo apps.
- Includes voice chat, image tools, attachments, and a reasoning mode.
Cons
- The most capable models require a paid subscription.
- Anonymous chats trade away the personalization that some users want.
- Features and available models can change as DuckDuckGo rotates providers.
FAQ About Duck.ai
Duck.ai Pricing
Freemium: free anonymous AI chat with multiple models and no account required; a paid DuckDuckGo subscription unlocks subscriber-exclusive flagship models (price shown in-app).
Check official pricingFree
Anonymous chat with GPT-5.4 nano/mini, Claude Haiku 4.5, Mistral Small 4, gpt-oss 120B, and Gemma 4 31B, plus voice chat, image tools, and file attachments.
Subscriber
Unlocks subscriber-exclusive models such as GPT-5.4, Claude Sonnet 4.6, and Claude Opus 4.8. Price shown in the DuckDuckGo app.
Duck.ai Alternatives
Tasklet
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Abacus.AI
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Poe
Poe is a multi-model AI chat platform by Quora that aggregates GPT-5.6, Claude, Gemini, Grok, Kimi, and thousands of other bots behind one interface. Users chat privately or in group chats, browse a leaderboard, and subscribe for more messages and access to the best models. It is available on web, iOS, Android, macOS, and Windows.