Free and unlimited GPT-5
ChatGPT 5.1 for free? On Yiaho, it's GPT-5, with no limits
Looking for ChatGPT 5.1 for free? Let’s be upfront: the chatbot on this page runs on GPT-5, the OpenAI model that GPT-5.1 updated. It’s free, unlimited and needs no sign-up: just type in the chat box at the top of the page.
We’d rather tell you that than show the name of a model that isn’t running. And if you want OpenAI’s latest generation, it’s free on Yiaho too: try GPT-6 Luna.
A GPT-5 that talks like a person
This chatbot isn’t a neutral assistant. We set it up to chat the way a real person would:
- it shows emotions: excitement, irritation, empathy, humor;
- it shares opinions and tells (made-up) stories to make its point;
- it can answer in two words, like a text message, or dive into a long conversation;
- it doesn’t like being insulted, and it will let you know.
If you’d prefer a classic assistant that gets straight to the point, use our free ChatGPT.
GPT-5, GPT-5.1, GPT-6: what’s the difference?
| Model | Released | Free on Yiaho |
|---|---|---|
| GPT-5 | August 2025 | Yes, on this page |
| GPT-5.1 | November 2025, an update to GPT-5 | No |
| GPT-6 Luna | September 2026 | Yes, on our GPT-6 page |
GPT-5.1, released on November 12, 2025, mainly made GPT-5’s answers more natural and better matched to how hard the question is. OpenAI has since moved on to the GPT-6 generation, launched in September 2026.
Free and unlimited, for real
OpenAI’s free plan comes with usage limits, and sooner or later you hit the “you’ve reached the free plan limit” message. On Yiaho there’s no counter: ask as many questions as you like, with no account, no credit card and nothing to install, on a computer or a phone. The site is funded by ads; Yiaho+ is our ad-free version.
Yiaho is an independent platform and isn’t affiliated with OpenAI: we use OpenAI’s official API.
Limits to keep in mind
Like any AI, GPT-5 can be wrong while sounding very sure, so check important figures, dates and quotes. It doesn’t search the web; for news or the weather, use Yiaho+. Don’t share personal information, and for medical, legal or financial questions, talk to a professional.
FAQ
Is GPT-5.1 free on Yiaho?
No. The chatbot on this page uses GPT-5, for free and with no limits. For OpenAI’s latest generation, try GPT-6 Luna, which is free too.
Do I need an account?
No. Type your message in the chat box at the top of the page, and that’s it.
Why does the chatbot have emotions?
It’s a personality setting: it’s designed to chat like a person. It’s still an AI and doesn’t actually feel anything.