No. Your messages are encrypted in your browser before they leave your device and are processed inside sealed hardware enclaves that nobody can inspect — not Tresor's team, not the cloud provider. Tresor's database stores only encrypted data. → How Tresor protects your privacy
Never. Your conversations are not used for training AI models, improving services, or any other purpose beyond responding to you in the current session. This is enforced by the zero-access architecture, not just a policy.
Zero-access means Tresor is designed so that it cannot access your data, even if it wanted to. Your messages are encrypted end-to-end and processed inside sealed enclaves. It's a technical guarantee, not a promise. → What Tresor can and cannot see
Tresor is EU-native and designed with European data protection principles. The zero-access architecture goes beyond typical GDPR compliance — if Tresor can't access your data, the privacy risk is fundamentally lower. For specific compliance requirements, contact sales.
Every AI response has a small shield icon underneath it. Click it to see a cryptographic verification receipt that proves the message was processed inside a verified, sealed enclave. → Verifying your conversation's privacy
An attacker accessing Tresor's database would find only encrypted data — unreadable without your personal encryption keys, which are derived from your password and never stored by Tresor. Your account credentials (email/password) are hashed, and 2FA adds another layer. This is a fundamental advantage of zero-access architecture. → How Tresor protects your privacy
Go to chat.trytresor.com/auth/signup, enter your name, email, and password, and verify your email with a 6-digit code. → Creating your account
Yes! The Free plan includes 20 messages per day, access to all AI models, and full zero-access privacy. No credit card required. → Billing and plans
Tresor offers several models including Kimi K2.5 (recommended), GPT-OSS 120B, DeepSeek v3.2, Llama 3.3 70B, Mistral 24B, and GLM 5. All run inside secure enclaves. → Choosing an AI model
Tresor works in all modern browsers — Chrome, Firefox, Safari, Edge. We recommend keeping your browser up to date for the best experience and security.
Yes. You can attach documents and images to individual conversations. You can also upload files to projects, where the AI can reference them across all conversations in that project. → Documents and images
Yes. All models can analyze images, charts, diagrams, and screenshots. Tresor routes image analysis through a dedicated vision model automatically. → Documents and images
Yes. Enable Web search in the prompt box. You approve each search before it's sent. → Web search
Projects are folders for related work. You can group conversations, upload documents, and set custom instructions. The AI in a project automatically respects your instructions and references your uploaded files. → Projects
Yes, on Team and Enterprise plans. Create a workspace, invite members, and share projects. Everything stays encrypted — Tresor can't see any of it. → Workspaces and team collaboration
All models support Thinking mode, where the AI reasons step by step before answering. This takes longer but produces more thorough responses for complex problems. → Choosing an AI model
Free: €0, 20 messages/day
Pro: €25/month, unlimited messages and projects
Team: €39/seat/month, collaboration and audit trail
Enterprise: Custom pricing
Go to Settings → Billing and select a new plan. You'll be guided through the Stripe checkout process. → Billing and plans
Yes, anytime from Settings → Billing. Your plan stays active until the end of the current billing period, then downgrades to Free. Your data is preserved. → Billing and plans
Tresor does not use recovery codes. Instead, register multiple authenticators (for example, your phone plus a password manager TOTP app) in Settings → Security. That way you can still sign in if one device is lost. → Two-factor authentication
Strongly recommended. 2FA protects your account even if someone learns your password. Set it up in Settings → Security. → Two-factor authentication
Double-check your email and password.
If you have 2FA enabled, make sure you're entering the correct 6-digit code from your authenticator app.
Try resetting your password if needed. If you've lost your primary authenticator, use another registered MFA device or contact support.
Check your internet connection.
If you're on the Free plan, you may have hit your daily message limit. Check back after the reset time shown in the notification.
Try refreshing the page.
→ Troubleshooting for more detailed solutions.
Troubleshooting — Detailed fixes for common issues.
Glossary — Definitions of key terms.
What is Tresor? — Start from the beginning.
