Private AI.
Freedom of Thought.

Tresor is built on Zero-Access principles that ensure you are the only one who can read or reconstruct your AI data. We use advanced cryptography and trusted execution environments to enforce this. We plan to open-source the secure core of our codebase to allow independent verification of our security claims. We will also offer simple to follow audit guides so users can confirm their data is handled as promised.

Tresor's goal is to create a safe space for your AI interactions. A space where you can share freely without worrying about who might be watching. We believe in privacy by design, so you can focus on what matters most: your ideas and creativity.

Zero-Access means only you can read or reconstruct your AI data. Our infrastructure enforces that neither Tresor nor model providers can view plaintext inputs, outputs, documents, chat history, or memory.

A Zero-Access TEE (Trusted Execution Environment) is a protected hardware enclave that runs model inference while keeping data encrypted to everyone outside the enclave. Tresor and model providers only see sealed (encrypted) blobs—never your readable prompts, documents, or outputs. Keys stay outside provider reach, so even infrastructure admins cannot peek inside.

Data is encrypted at rest and in-use inside trusted execution boundaries. Keys remain under your exclusive control. We avoid server-side logging of sensitive content and do not retain prompts for model tuning.

Tresor supports a range of leading OSS AI models from providers like Meta, Cohere, and OpenAI. We plan to expand our model catalog over time based on user feedback and emerging options in the market.

Yes. Team features allow shared workspaces, governance, and audit trail without exposing underlying private artifacts or weakening encryption boundaries.

Yes, there is a free tier suitable for light individual use. Paid plans unlock higher usage limits, team features, and enterprise capabilities.

The Tresor Beta is an early access program where users can experience Tresor's Zero-Access AI platform before its official launch. Participants can provide feedback, help identify issues, and influence future features.