Ptero

Ptero is a free AI chat platform that provides access to multiple language models through a single interface. No account registration or payment is required. Users can switch between models with one click, compare responses, and organize chats into projects. The platform includes a media library for file attachments. It is designed for developers, students, and creators who need AI assistance for debugging, coding, brainstorming, and learning. Ptero imposes no usage limits and is accessible directly from any web browser.