Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteChatGPT and Gemini are the clearest options to try in a browser without signing in, but both limit what you can do. ChatGPT offers a temporary conversation in supported countries; Gemini allows some basic text interactions while signed out. Perplexity is worth checking if you want cited answers, but its current guest access is not confirmed by the official page reviewed here.
Which AI assistants can you use without signing in?
| Assistant | What the available evidence supports | Main limitation |
|---|---|---|
| ChatGPT | OpenAI documents browser use before account creation in supported countries. | One temporary conversation at a time; the chat is not saved. |
| Gemini | Google documents some signed-out web-app features, generally informational questions and simple text generation. | No past chats or personalization; several tools require an account. |
| Perplexity | Its official overview describes cited answers and free core search and chat. | The overview does not confirm whether current browser access works without an account. |
Access rules can vary by country, device, and product changes. A service may show a sign-in prompt even when some signed-out features are available, so check the service directly from your location before relying on it.
ChatGPT: a temporary conversation without an account
OpenAI says users can try ChatGPT at chatgpt.com before creating an account in supported countries. The feature is rolling out and, in Europe, is not available outside the UK according to the Help Center page reviewed on October 7, 2026.
Signed-out use is limited to one conversation at a time. The chat is not saved to history and remains accessible only in the current browser session. Starting a new chat makes the existing logged-out conversation inaccessible. Use it for a one-off question or draft, not work you need to retrieve later.
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Gemini: basic text features, with account-gated tools
Google says some Gemini web-app features work without signing in. Signed-out users can generally ask informational questions or generate simple text, though Google says capabilities may change and availability can depend on location and device.
Without an account, you cannot access past chats or personalized responses, and you cannot use Connected Apps, image generation, Gems, or file uploads. Some users and features require an account. Google also notes that Gemini may use general location, or precise device location if permitted, to make responses more relevant.
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Google’s help page cautions: “Gemini Apps can make mistakes. When using Gemini Apps, double-check responses and don’t rely on responses from Gemini Apps for professional advice.”
Perplexity: cited answers, but verify guest access
Perplexity’s official overview describes cited answers and free core search and chat, but does not state whether the browser app currently permits use without an account. A 2025 USENIX Security Symposium study observed that Perplexity could be used with or without an account in the browser-assistant setup it tested. That finding describes the study’s tested configuration, not a current access guarantee. Check for a sign-in requirement yourself before choosing it for account-free use.
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How to choose
- For a quick, open-ended exchange: Try ChatGPT if logged-out access is available in your country, and keep in mind that the conversation will not persist.
- For basic questions or simple text generation: Try Gemini if its signed-out features are available on your device and in your location.
- For cited answers: Consider checking Perplexity, but do not assume guest access based on its free service description or the 2025 study.
- For saved history, personalization, uploads, or connected tools: The documented signed-out options do not provide the full experience; Gemini specifically gates several of these features behind sign-in.
Privacy when using an assistant signed out
Not signing in does not mean your prompts are unprocessed. OpenAI’s home-page guidance says chats are used to train models by default and recommends avoiding sensitive information. It also describes an opt-out setting for logged-out users that is tied to the browser and resets if cookies, browser, or device change. Review each service’s current data terms before sharing personal or confidential material.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Why other candidates are not confirmed here
An independent selection guide says Brave Leo works without signup, but the evidence available here does not establish current guest access through primary documentation. Current primary-source confirmation was also not established for Duck.ai or Microsoft Copilot. Treat these as options to verify directly rather than confirmed account-free recommendations.
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