Free AI chat online, no sign-up needed
Chat with AI free in your browser. No account, no login, no card, and your chats never train AI. Sign up free when you want to keep them.
Why use Quad Chat?
Free AI chat online, no sign-up or login
Ask your first questions at quad.chat with no account. When you want your chats, files and projects synced across web, iOS and Android, create a free account. No credit card required.
Compare answers before you trust them
Send one prompt to several leading AI models, review the answers side by side, and continue with the model that fits the task.
Keep your chats with a free account
Sign up free when you want to keep going. Your chats, cited research, files, images and projects stay in one private workspace, synced across web and mobile.
Your chats never train AI
Quad never uses your conversations or files to train AI models, never sells your data and never shares it with advertisers. Most models run on the Private Lane, where the provider keeps nothing after it answers under a Zero Data Retention agreement.