Ptero
Free AI chat platform with multiple powerful models.
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Description
Free AI chat platform with multiple powerful models. No signup, completely private and open-source. Try it now.
About Ptero
What is Ptero?
Ptero is a free, open-source AI chat platform that routes messages to selected third-party model providers.
What Ptero does
It supports guest conversations stored in the browser and signed-in Projects stored on its servers. Users select a model, send messages, and manage local conversation backups, while Projects sync chats and custom files across signed-in devices.
Who Ptero is for
It is for people using AI for informational and conversational purposes who want guest access or synchronized project conversations.
How Ptero works
Visitors accept the policies, choose a display name, and select a model to start chatting. Regular chats stay in the browser, while GitHub sign-in is required to create and sync Projects; messages are sent to the chosen provider to generate a reply.
Key features
- Guest access uses a token and display name stored locally.
- Chats outside Projects are kept in the browser.
- Projects store chats and custom files on the server.
- Conversation backups can be exported and imported.
- The site provides access to its source code.
Facts from ptero.pro, checked 13 October 2026
- Project files are deleted after 90 days without opening Projects.
- The privacy policy says chat content is not used for advertising.
Written from Ptero's own website (Homepage). The maker can claim this listing to edit it.
Categories
Frequently asked questions
Are there paid plans?
The terms say the platform is free, with no premium plans, subscriptions, paywalls, or paid tiers.
Are all conversations stored only locally?
No. Chats outside Projects are local, while Project chats and files are stored on the server and linked to the signed-in account.
What happens when browser data is cleared?
Local chats and guest identity can be removed, but clearing browser data does not delete server-stored Project data.
Who processes messages?
Messages pass through the service to the selected third-party AI provider, which applies its own privacy practices.
How should generated answers be used?
The terms say responses may be inaccurate or incomplete and users are responsible for evaluating their suitability before relying on them.