In a nutshell: Most AI assistants promise not to misuse your data. Tresor can't, even if it wanted to. That's the fundamental difference.
Feature | Tresor | ChatGPT (OpenAI) | Claude (Anthropic) | Gemini (Google) |
|---|---|---|---|---|
Can the provider read your messages? | No — sealed enclave | Yes — processed on their servers | Yes — processed on their servers | Yes — processed on their servers |
Messages encrypted end-to-end? | ✅ Yes | ❌ No | ❌ No | ❌ No |
Conversation history encrypted? | ✅ Client-side encryption | ❌ Stored in plaintext on provider servers | ❌ Stored in plaintext on provider servers | ❌ Stored in plaintext on provider servers |
No Data being used for training? | ✅ Never | Opt-out available (but data is still processed) | Opt-out available | Opt-out available (varies by product) |
Privacy is verifiable? | ✅ Cryptographic proof per message | ❌ Trust-based only | ❌ Trust-based only | ❌ Trust-based only |
Hardware isolation (enclave)? | ✅ Yes | ❌ No | ❌ No | ❌ No |
EU-native? | ✅ Yes | ❌ US-based | ❌ US-based | ❌ US-based |
When you use ChatGPT, Claude, or Gemini, your messages are processed on the provider's servers in plaintext. The provider:
Could read your messages (technically possible)
Promises not to misuse them (policy-based protection)
May use your data for training unless you opt out
Stores your conversation history in a form they can access
Your privacy depends on their policies, their security practices, and jurisdictional regulations.
Tresor eliminates the need for trust by using technology that makes unauthorized access impossible:
Your messages are encrypted before they leave your browser.
They're processed in sealed hardware enclaves that nobody can inspect.
Your conversation history is stored as encrypted data that Tresor can't read.
Every message has cryptographic proof of private processing.
The difference isn't about Tresor being more trustworthy as a company. It's that Tresor's architecture makes trust unnecessary.
For casual conversations — asking for recipe suggestions or help with a crossword — the privacy difference is minimal. But in professional contexts, it matters enormously:
Scenario | Risk with standard AI | With Tresor |
|---|---|---|
Drafting legal strategy | Provider could see privileged information | Protected by encryption + enclave |
Analyzing financial data | Confidential numbers on provider servers | Numbers never leave your encrypted session |
Discussing HR situations | Employee data exposed to a third party | Zero-access — Tresor can't see it |
Client consulting work | Client confidentiality at risk | Provably private processing |
Health or therapy contexts | Sensitive personal data on US servers | EU-native, encrypted, sealed |
You're right — if you opt out or use ChatGPT Enterprise or the API. But there's a key distinction:
Policy protection: "We won't use your data" → Can be changed, subpoenaed, or breached.
Technical protection: "We can't access your data" → True regardless of policies, legal orders, or security incidents.
Tresor provides technical protection. Your data's privacy doesn't depend on any company's promises holding up.
Running AI models on your own servers is another way to keep data private. However:
It requires significant IT infrastructure and expertise.
You need to manage GPUs, updates, security, and scaling.
Model quality may be limited by your hardware.
Cost is typically much higher for small and medium teams.
Tresor gives you the privacy of on-premise with the convenience of the cloud — the same AI models, accessible from your browser, with no infrastructure to manage.
Tresor isn't "anti" other AI tools. If you use ChatGPT for personal, non-sensitive tasks, that's perfectly fine. Tresor is built specifically for when privacy matters.
Tresor offers models from multiple providers — including OpenAI-compatible models — so you're not sacrificing model quality for privacy.
All models in Tresor run inside verified secure enclaves. Switching to Tresor doesn't mean switching to less capable AI.
How Tresor protects your privacy — Full technical explanation.
What is a secure enclave? — Understand the technology behind it.
What Tresor can and cannot see — Transparent data access breakdown.
