How ChaiGPT delivers a free, unlimited LLM
ChaiGPT is a free AI chat that works without an account. An open-source AI model runs directly in your browser, so there's no signup, no fees, and nothing saved on a server.
Free
No account, no email, no credit card. Open the page and ask.
Effectively unlimited
The model runs on your device — no API credits and no token caps.
Private by default
Prompts never leave your browser. No saved chats, no stored uploads.
Local Mode — an unlimited LLM in your browser
ChaiGPT runs an open-source language model directly in your browser using WebLLM and WebGPU. There is no cloud AI provider in the loop — your prompt is answered on your own device. That's what makes ChaiGPT effectively an unlimited LLM for everyday use: no API key, no per-token billing, no quota.
- First message: a one-time model download (a few hundred MB).
- After that: replies generate locally, fully offline-capable.
- Cached in your browser for the session so you don't re-download.
What about images?
Image understanding isn't available yet — the in-browser model can read text but not pictures. You can attach text files (PDF, TXT, MD, DOCX) and ChaiGPT will use the extracted text to answer your question.
Privacy — nothing saved, ever
ChaiGPT has no accounts, so there's nothing to log into and nothing to delete. We don't store conversations, we don't store uploads, and we don't build a profile of you. Because answers are generated locally, your prompts never leave your browser. Read more in our privacy notice.
How it compares to other free AI chat tools
Most free ChatGPT alternatives ask you to sign up, hand over an email, and then cap usage behind a paywall. ChaiGPT removes all three: no signup, no email, no hard cap — the model runs on your device.
Frequently asked questions
Is ChaiGPT really a free LLM with no signup?
Yes. ChaiGPT is a free LLM you can use without creating an account, entering an email, or adding a credit card. Open the page and start chatting.
Is it actually an unlimited LLM?
Yes. ChaiGPT runs an open-source language model directly in your browser via WebLLM, so there are no API credits, no per-token billing, and no hard usage caps. The only limit is your own device's speed.
Is ChaiGPT a free ChatGPT alternative?
Yes. ChaiGPT is a free AI chat alternative that works like ChatGPT for everyday questions, writing help, summaries, and explanations — without an account or paywall.
Do you store my chats or uploads?
No. ChaiGPT runs entirely in your browser, so chats and uploads never reach our servers. Refreshing the page clears the conversation, and uploaded files are processed only to answer the current question.
What models does ChaiGPT use?
ChaiGPT uses open-source LLMs (Llama-family and similar) compiled to run in your browser via WebLLM and WebGPU. The model downloads once and is cached for the rest of the session.
No signup. No saved chats. Just ask.