--- title: "SumizAI vs Duck.ai" url: "https://sumizai.com/alternative-to/sumizai-alternative-to-duckduckgo-ai-chat.html" date: "2026-08-14T00:00:00+02:00" modified: "2026-08-14T00:00:00+02:00" description: "Looking for a Duck.ai alternative? SumizAI and Duck.ai side by side: price, licence, platforms and what each one actually does." tags: ["ai notes", "sumizai", "duckduckgo-ai-chat", "alternative to Duck.ai"] --- # SumizAI vs Duck.ai Looking for a Duck.ai alternative? SumizAI and Duck.ai side by side: price, licence, platforms and what each one actually does. ## What Duck.ai is Duck.ai is a feature from DuckDuckGo, the search engine known for not tracking its users, that lets you have anonymous conversations with several third-party chat models at once. Instead of building its own model, DuckDuckGo brokers access to other companies' models, stripping out identifying data along the way before a query ever reaches the model provider. Key features: Free access includes Anthropic's Claude 4.5 Haiku, Meta's Llama 3.3 70B, Mistral Small 3 24B, and OpenAI's GPT-4o mini — users switch between them from a single, simple interface. Metadata that could identify a user, such as an IP address, is removed before a query reaches the model provider, and conversations are not stored or used to train models by DuckDuckGo or by the underlying providers by default. Subscribers on DuckDuckGo's higher tiers (Plus, Pro) get access to more powerful models like GPT-5.4 or Claude Opus 4.8, plus higher usage limits. Who it's for: Duck.ai appeals to people already using DuckDuckGo's search engine for its privacy stance, who want the same anonymity when talking to AI models, without creating a separate account with every model provider individually. Use cases: In practice, Duck.ai works well for quickly comparing answers from several different models to the same question without switching between separate provider websites, and for everyday queries where a user wants assurance that the conversation content won't be tied back to their identity. Pricing and business model: Basic access to Duck.ai is free with a limited model selection, and a paid DuckDuckGo subscription unlocks more powerful, newer models plus higher query limits — the business model mirrors the freemium approach used by the model providers themselves. Limitations and what to watch for: Duck.ai is a broker, not the owner of the models — the quality and availability of any given model depends on DuckDuckGo's agreements with individual providers and can change over time as the list of available models is updated. Building trust through the search engine's brand: DuckDuckGo enters the AI assistant market with a privacy reputation built over years in search — a different starting point than new AI startups that have to earn a user's trust from scratch on first contact with the product. Limitations of free model access: Models available without a subscription can be smaller or older than the flagship versions offered directly by their makers — fine for everyday queries, but for more demanding tasks it's worth comparing answer quality against the paid version of that model at the source. Model rotation over time: The list of models Duck.ai offers changes with new deals and expiring contracts with providers — a model someone relies on today might disappear from the list in a few months, replaced by a newer version or an entirely different provider. Anonymity of the conversation versus permanence of a ai notes entry: It's worth separating two different things: the anonymity of a Duck.ai conversation itself (nobody knows it was you) and the permanence of its content as a ai notes entry elsewhere — once a fragment is copied into an external notebook, Duck.ai's anonymization no longer covers that copy, so the security of wherever that ai notes entry ends up depends entirely on the app chosen there. AI notes from anonymous Duck.ai conversations: Duck.ai offers no built-in archive of lasting notes — anonymity alone doesn't solve the problem of keeping a conversation around, so an answer someone wants to keep as a ai notes entry still has to be copied by hand into a separate notes app once the session ends. The business model of anonymization as a service: DuckDuckGo has spent years building its brand around not tracking search users, and Duck.ai extends that same promise to AI conversations — the company earns from contextual search ads and subscriptions, not from selling data about users' conversations. Model choice as an edge over a single provider: Being able to switch between several models from different companies within one interface, with no separate accounts to create, sets Duck.ai apart from apps tied to a single, specific model provider — convenient for comparing answer quality without losing the anonymization layer. What's worth checking before choosing: Before relying on Duck.ai, check the current list of models available on the free tier, since it changes over time along with DuckDuckGo's agreements with individual providers. Browser integration and search bar access: Duck.ai is available both as a standalone page and integrated directly into DuckDuckGo's search bar — users can switch from a classic search to a conversation with an AI model without leaving the same browser and without installing an extra app. Comparison with paying for each provider's subscription separately: Someone paying separately for accounts with OpenAI, Anthropic, and Meta just to access their models might instead consider a single DuckDuckGo subscription covering several of those models at once — though usually with lower usage limits than a dedicated subscription directly with each provider individually. Mobile and desktop availability: Duck.ai is available in DuckDuckGo's mobile apps for Android and iOS, as well as desktop apps for macOS and Windows, so a conversation started on a computer can continue on a phone with no extra account setup — though the conversation history stays local to the device, with no persistent cross-platform cloud sync. Bottom line: Duck.ai is anonymized access to several chat models from different companies in one interface, with no lasting conversation archive. Anyone who wants worthwhile answers from such conversations to land automatically as ai notes in a searchable archive should consider a tool built around that workflow. Comparison with SumizAI: Duck.ai and SumizAI differ in purpose — Duck.ai is an anonymized gateway to multiple models with no notes archive, while SumizAI is a notebook where answers worth keeping automatically become ai notes as Markdown files in a vault you own, with the model connected through your own API key to one of seven providers, including Anthropic and OpenAI, both also available through Duck.ai. Anyone who wants an anonymous comparison of several models at once will pick Duck.ai; anyone who wants these notes from those conversations to build a lasting archive will find SumizAI the better-fitting tool. **Key facts** - Price: Freemium - License: Proprietary - Origin: United States - Category: AI Chatbot, Large Language Model (LLM) ## What SumizAI is A note-taking application built around a conversation with an AI model. You ask a question, the answer streams back, and the answers worth keeping become Markdown notes — filed into a vault that is a folder on your own disk. A vault is a directory holding `base.md`, a generated table of contents up to six levels deep, and a `notes/` folder with one `.md` file per note. Before a note is written it is checked against the ones already there, so the fourth note about the same idea gets merged instead of added. Links between notes are ordinary Markdown links to files that exist. The model is never ours: you bring your own API key to one of seven providers — Anthropic, OpenAI, Gemini, Groq, OpenRouter, a local Ollama or your own server — and pay that provider directly. A question sends the table of contents plus at most five relevant notes within a 24,000-character budget, and the app shows you which five it used. ## Where they differ - Duck.ai is a place to have the conversation. SumizAI is not a chatbot — the conversation is the input, not the product. What comes out of it is a `.md` file with a title, a place in `base.md` and a duplicate check against the notes already in the vault. If you only want to talk to a model, you do not need SumizAI. - Duck.ai is freemium: there is a free tier and a paid one, and the line between them is the thing to read before committing. SumizAI has one plan at a dollar a month, so there is no feature held back for a higher tier — and an unpaid account still opens and exports every vault it already has. - AlternativeTo's description of Duck.ai does not mention Markdown, so check what format your notes end up in before you fill it up. SumizAI writes standard `.md` files to a folder you picked, and an unpaid account can still export all of them. Full side-by-side comparison table and pricing: [https://sumizai.com/alternative-to/sumizai-alternative-to-duckduckgo-ai-chat.html](https://sumizai.com/alternative-to/sumizai-alternative-to-duckduckgo-ai-chat.html)