Free, unlimited ChatGPT online, with no sign-up
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Chat GPT free online, in English, with no account
Looking for a free ChatGPT you can use online, in English, with no sign-up? The chat above answers right away: type your question, press Enter, and the reply arrives in seconds. No email address, no login, no app to install, no message counter.
This chatbot runs on GPT-5, a model from OpenAI, the company that created ChatGPT, through its official API. Yiaho is an independent French website: it isn’t the official ChatGPT website, but you really are chatting with an OpenAI GPT model, for free.
What is ChatGPT?
ChatGPT is the conversational assistant OpenAI launched in late 2022. It relies on language models, called GPT, trained on huge amounts of text: they understand a question written in everyday language and write an answer, the way a person would. Whether you type “ChatGPT”, “chat GPT” or “GPT chat”, it’s the same tool: a chat with an artificial intelligence that can explain, write, summarize, translate or come up with ideas.
How to use ChatGPT for free
- Type your request in the chat box, in English or any other language.
- Add an image or a PDF if you need to, with the chat’s file upload button: the AI can read a photo, a screenshot or a document.
- Refine or correct: the chat keeps track of the conversation. Ask for a shorter, simpler version or a different tone, without explaining everything again.
Talk to ChatGPT in English
The chat answers in natural English and doesn’t need perfect spelling: it understands typos, abbreviations and casual language. You can ask it to be more formal, more relaxed, shorter or more detailed. And if you write in another language, it answers in that language.
What you can do with this free ChatGPT
- Write and edit: an email, a cover letter, a tricky message, a CV. Example: “Fix the mistakes in this text without changing my style.”
- Understand: a lesson, a concept, a contract, a manual. Example: “Explain the difference between a fixed-rate and a variable-rate mortgage as if I were 15.”
- Study: prepare a presentation, check your reasoning, practise with a quiz. Example: “Ask me ten questions about World War II and correct my answers.”
- Find ideas: a gift, a weekly meal plan, a video title, a baby name. Example: “Give me ten gift ideas under $30 for a friend who loves hiking.”
- Translate: from English to Spanish, French, German, Arabic and dozens of other languages.
- Code: explain an error message, write an Excel formula or a short script.
For more specific needs, Yiaho also has specialized AIs, such as an AI to write a book or AI language tutors.
Send a photo or a PDF
The chat can read what you send it: a photo of a document, a screenshot, a homework exercise, an invoice, a PDF of several pages. Ask it to summarize it, pull out a piece of information, translate it or explain it. It analyzes images but doesn’t create them: image creation is part of Yiaho+.
How to write a good request
Give some context (who you are, who the text is for), the format you want (a list, a table, 100 words) and the tone (formal, friendly, funny). If the answer isn’t right, say what’s wrong instead of asking the same question again: “too long”, “simpler”, “no jargon”.
How is this different from the official ChatGPT website?
OpenAI’s official website, chatgpt.com, has a free plan and paid subscriptions such as ChatGPT Plus. Since August 2026, its free plan includes unlimited text chats for people with an OpenAI account. Here’s what’s different on Yiaho:
- No account: no email, no password, no phone number.
- No message cap: only automatic safeguards slow down bots that send dozens of messages a minute.
- The model: this chat uses GPT-5. The official website offers newer models; to try OpenAI’s latest model on Yiaho, open our free GPT-6 Luna page.
- No web search or image creation: the chat answers from what it knows, without searching the internet. To search the web or create images, use Yiaho+, our ad-free interface (free trial, then subscription).
- How it’s funded: Yiaho is free thanks to the ads shown on the site.
Limits worth knowing
Like any language model, GPT-5 can be confidently wrong, especially about figures, dates or very recent events. Double-check anything important and, for health, legal or money matters, ask a professional.
Your data
You don’t need an account or to give your name. Your messages, and any files you send, are passed to OpenAI to generate the answer. Yiaho keeps conversations for 90 days, with the date and IP address, to run the service and prevent abuse: all the details are in our data policy. Don’t type confidential information, such as a password or a credit card number.
More AIs on Yiaho
The same idea applies to dozens of other AIs: ChatGPT 5, with a more human personality, GPT-6 Luna, DeepSeek or Grok 4.20, plus specialized assistants to rewrite a text, ask a legal question or detect AI-written text.
FAQ: your questions about our free ChatGPT
Yes. The chat on this page is free, with no subscription and no hidden fees: the site is funded by advertising. Only web search and image creation are part of Yiaho+, our ad-free version.
No. No sign-up, no login, no email: the chat works right in your browser, on a computer or a phone.
Yes, there’s no message cap. Automatic safeguards only slow down bots that send dozens of messages a minute.
GPT-5, an OpenAI model, through its official API. For OpenAI’s latest model, try free GPT-6 Luna.
No. Yiaho is an independent French website, not affiliated with OpenAI. ChatGPT is an OpenAI brand, and its official website is chatgpt.com; on Yiaho, you chat with an OpenAI GPT model through its API.
Yes. It answers in the language of your question: English, but also Spanish, French, Arabic, Hindi and dozens of other languages.
Yes. Add a photo, a screenshot or a PDF to your message: the AI can read it, summarize it or answer your questions about it. Avoid sending confidential documents.
No. It answers from what it knows, which stops at a certain date, and it analyzes images without creating them. For web search and image creation, use Yiaho+ (free trial, then subscription).
No account is needed, but your messages are passed to OpenAI to generate the answers, and Yiaho keeps them for 90 days with the date and IP address, to run the service and prevent abuse. Don’t type confidential information. Details in our data policy.
Not blindly. GPT-5 is very useful, but it can be wrong or make something up with confidence. Check what matters, especially for health, legal or money questions.
On Yiaho, ChatGPT 4 has been replaced by GPT-5, a newer model. Our free ChatGPT 4 page explains what changed.
No. The chat works in your phone’s browser, on Android and iPhone alike. To open it in one tap, add the page to your home screen from your browser’s menu: it will open like an app. More tips in our guide to getting Yiaho on your phone.
No. Yiaho is an independent French AI website, unrelated to Yahoo. If you were looking for Yiaho’s free ChatGPT, you’re in the right place.
No. ChatGPT Plus is OpenAI’s paid subscription, on chatgpt.com. On Yiaho, you use GPT-5 for free, with no subscription; for advanced features such as web search and image creation, there’s Yiaho+.
If something isn’t working or you have an idea, write to us through our contact page. You’ll also find answers in our FAQ.
