DuckDuckGo AI
Private AI chat with leading models, free within a daily limit.
At a glance
Free + paid · Source review 2026-11-05- Price & billing
Duck.ai is free to use within a daily limit; the help page does not publish a fixed message count, and daily limits reset at midnight UTC. Plus costs $9.99 a month or $99.99 a year; Pro costs $19.99 a month or $199.99 a year (US prices shown with a $ sign and no named currency on the page; other countries are listed in local currency, VAT included). Both are part of DuckDuckGo's four-in-one subscription, which also includes a VPN, Personal Information Removal, and Identity Theft Restoration. The model picker shows 'Try for free' next to the locked Plus/Pro models; no trial length was verified on the official pages read.
- Free allowance
Duck.ai is free to use within a daily limit; the help page does not publish a fixed message count, and daily limits reset at midnight UTC. The model picker shows 'Try for free' next to the locked Plus/Pro models; no trial length was verified on the official pages read.
- Best suited to
Private, free AI chat with a choice of models, without handing over personal data.
Fit is editorial guidance, not a measured result.- Platforms
Access: not separately verified. Operating systems not separately verified.
Published-source facts and editorial guidance. No product test is implied. Confirm current conditions before purchase.
No product screenshot is claimed for this listing. Use the official website ↗ to inspect the current interface.
What to know before choosing
Good fit
Private, free AI chat with a choice of models, without handing over personal data.
Limits and trade-offs
Free use has a daily limit with no published message count; the most capable models (GPT-5.6 Sol, Claude Opus 5.5) are Pro-only; Recent Chats are saved on the device by default, with optional free end-to-end encrypted Sync & Backup across devices; paid plans are sold as a four-in-one bundle with VPN and identity-protection services.
Plans and free allowances
Duck.ai is free to use within a daily limit; the help page does not publish a fixed message count, and daily limits reset at midnight UTC. Plus costs $9.99 a month or $99.99 a year; Pro costs $19.99 a month or $199.99 a year (US prices shown with a $ sign and no named currency on the page; other countries are listed in local currency, VAT included). Both are part of DuckDuckGo's four-in-one subscription, which also includes a VPN, Personal Information Removal, and Identity Theft Restoration. The model picker shows 'Try for free' next to the locked Plus/Pro models; no trial length was verified on the official pages read.
Evidence
Official Duck.ai help page ↗ (reviewed 2026-11-05), Official Duck.ai usage-limits help page ↗ (reviewed 2026-11-05), Official DuckDuckGo subscription cost help page ↗ (reviewed 2026-11-05), Duck.ai chat app (browser observation) ↗ (reviewed 2026-11-05), Official Duck.ai recent-chats help page ↗ (reviewed 2026-11-05)
Read the official Duck.ai help pages via text fetch on 2026-11-05; observed duck.ai in headless Chrome on the server (Playwright) the same day; checked each fact quote against the captured page text; no chat run, no login, no purchase. R5 fix (2026-11-05): re-read the official recent-chats and usage-limits help pages via text fetch; corrected the Recent Chats storage description to the official two-state wording (local by default; optional free end-to-end encrypted Sync & Backup).
Dates: Last reviewed 2026-11-05. Last reviewed is the latest source or editorial review date; it is not a content-change date.
A closer look at DuckDuckGo AI
Duck.ai by DuckDuckGo is a free, private AI chat: ask questions, draft an email, or summarize text with third-party chat models (GPT-6 Luna, GPT-5.4 mini, Claude Haiku 5.5, Mistral Small 4, gpt-oss-120b, Gemma 4 31B), anonymized by DuckDuckGo, within a daily usage limit. Recent chats are saved on your device by default, with optional free Sync & Backup for end-to-end encrypted sync across devices. This entry covers Duck.ai chat, not the optional AI-assisted answers on the DuckDuckGo search engine.
Editorial guidance based on published documentation. The workflow below is a suggested starting point, not a measured product result.
When to choose DuckDuckGo AI
- Someone who wants to chat with leading AI models without handing over personal data: DuckDuckGo says it anonymizes chats and does not store prompts or train on data.
- Someone who wants a free daily AI chat and is happy to pick a model per task and work within a daily limit.
- Someone who already searches with DuckDuckGo and wants to move from a search result to a follow-up chat question.
- Someone who wants chat history kept on their own device by default, with optional free end-to-end encrypted Sync & Backup across devices, and a Fire Button in Duck.ai to clear chats.
When to choose something else
- Someone who needs a guaranteed number of messages per day, or no usage cap at all: the free version has a daily limit and the help page does not publish a fixed message count.
- Someone who needs the most capable models (GPT-5.6 Sol, Claude Opus 5.5) without paying: those are Pro-only, and Plus adds GPT-5.6 Terra and Claude Sonnet 5.5.
- Someone who only wants the advanced models and does not want the rest of the bundle: Plus and Pro are sold as DuckDuckGo's four-in-one subscription, which also includes a VPN, Personal Information Removal, and Identity Theft Restoration.
A practical starting workflow
- Open duck.ai — the chat input ('Ask anything privately') is available on load, and no sign-in screen appeared during the 2026-11-05 browser visit.
- Pick a model from the model picker: GPT-6 Luna is the default for everyday use; the help page advises matching a lower-cost model to lighter tasks to save limits.
- Type a question, an email draft request, or text to summarize, and send it; you can also move from a DuckDuckGo search result to a follow-up question.
- Check current daily and weekly usage in Duck.ai settings; when the daily limit is reached, a subscriber can switch to the weekly limit until it is used up.
- Manage history: chats are saved on your device by default, and you can optionally enable free Sync & Backup for end-to-end encrypted sync across devices. Pin up to 5 chats — pinned chats are not deleted by the Fire Button in Duck.ai — delete a chat individually, or clear chats with the Fire Button in Duck.ai; the browser's Fire Button does not delete Duck.ai chats by default.
Check before committing
- No chat was run and no message was sent; no account was created and nothing was purchased. Model behaviour, limits, and the trial were not tested.
- The help page states a daily limit but does not publish a fixed message count; no number is claimed here.
- The model lineup and subscription prices are as published on the DuckDuckGo help pages on 2026-11-05; models and prices can change.
- This entry covers Duck.ai chat, not the optional AI-assisted answers on the DuckDuckGo search engine.
Common questions
What is Duck.ai?
Duck.ai is DuckDuckGo's private AI chat: private conversations with third-party AI chat models, anonymized by DuckDuckGo. You can use it to get answers to questions, compose an email, summarize text, or just have an interesting conversation.
Is Duck.ai free? What are the limits?
Yes. Duck.ai is free to use, but there is a daily limit on usage, and the help page does not publish a fixed number of messages. Plus subscribers get higher usage limits than the free version, and Pro subscribers get 2x higher usage limits than Plus.
Official Duck.ai usage-limits help page ↗ · Official Duck.ai help page ↗
Which models can I use for free, and which need a subscription?
Free: GPT-6 Luna, GPT-5.4 mini, Claude Haiku 5.5, Mistral Small 4, gpt-oss-120b, and Gemma 4 31B. Plus adds GPT-5.6 Terra and Claude Sonnet 5.5. Pro adds Claude Opus 5.5 and GPT-5.6 Sol, higher reasoning effort, and 2x higher usage limits than Plus. The same lineup was shown in the model picker during the 2026-11-05 browser visit to duck.ai.
Official Duck.ai help page ↗ · Duck.ai chat app (browser observation) ↗
Are my Duck.ai chats private? Where are they stored?
DuckDuckGo says it anonymizes chats, and that its AI features do not track how you use them, store your prompts, or train on your data. By default, Recent Chats are saved locally on your device. You can optionally enable free Sync & Backup to save them on a secure DuckDuckGo server with end-to-end encryption — DuckDuckGo cannot read them, because the master decryption key stays only on your devices — and keep them in sync across devices. You can delete chats individually or with the Fire Button in Duck.ai (deleting browser data with the browser's Fire Button does not delete Duck.ai chats by default), and pin up to 5 chats to the top of the list; pinned chats are not deleted by the Fire Button in Duck.ai.
Official Duck.ai help page ↗ · Official Duck.ai recent-chats help page ↗
When do the usage limits reset?
Daily limits reset at midnight UTC, and weekly limits reset every Sunday at midnight UTC. Subscribers have both a daily and a weekly limit and can switch to the weekly limit once the daily limit is reached. Current daily and weekly usage can be seen in Duck.ai settings.
What does a DuckDuckGo subscription cost?
The subscription is sold as a four-in-one service with two plans: Plus costs $9.99 a month or $99.99 a year; Pro costs $19.99 a month or $199.99 a year (US prices; other countries are listed in local currency, VAT included). Both include a VPN, access to advanced AI models in Duck.ai, Personal Information Removal, and Identity Theft Restoration. The $ amounts on the page carry no named currency for the US row.
Compare approaches for this task
- ChatGPT — Turning a brief or source files into structured drafts, explanations, and working documents.
- Claude — Working through source material, developing structured drafts, and iterating on code or documents.
- Wiz.chat — Anyone who wants free, private AI character chat running locally, without an account.
Sources and checks
Last source review is not a date of product testing. No rating or test result is implied by inclusion. Check the current plan and terms before buying.