Tinfoil - Blog

Towards Search, Memory, and More

A look at the infrastructure groundwork behind two features coming to Tinfoil Chat: semantic search across your history and memory, without compromising on privacy.

Sacha Servan-Schreiber

June 16, 2026

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Auditing a frontier model without seeing its weights

How Pour Demain used Tinfoil Containers to run gray-box interpretability evals on a 744B parameter model inside confidential enclaves, without exposing the weights.

Daniel McCann-Sayles and Tanya Verma

June 9, 2026

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Supply Chain Security - Part 1

How Tinfoil thinks about supply chain security for client-side code and build infrastructure.

Miles Dai

May 1, 2026

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Introducing Tinfoil Containers

Tinfoil Containers lets you deploy your application backend, your training pipeline, or your proprietary model on Tinfoil and build end-to-end verifiably private AI services.

Tinfoil Team

March 10, 2026

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How Tinfoil Proves Exactly What Model Is Running

How we cryptographically guarantee that we are serving specific, untampered model weights that clients can verify on each request.

Tinfoil Team

February 3, 2026

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Sharing Conversations Without Sharing With Tinfoil

How we built shareable conversation links while preserving conversation privacy.

Sacha Servan-Schreiber

January 26, 2026

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How We Implemented Private AI Web Search

A look into our system design, threat model, and evaluation for private web search—architected so that even Tinfoil cannot see your search queries.

Tinfoil Team

January 22, 2026

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Building a Browser-Native Verification Stack for Tinfoil

Learn how we built a browser-based confidentiality and integrity verifier with implementations of browser-native Sigstore and TUF libraries.

Sacha Servan-Schreiber and Giulio Berra

December 18, 2025

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Private Chat Backups with Local-First Principles

Introducing encrypted chat backups and multi-device syncing that extends our end-to-end privacy principles to persistent cloud storage.

Sacha Servan-Schreiber

September 24, 2025

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Launching qwen3-coder-480B

Fully private coding with qwen3-coder-480b.

Tinfoil Team

September 2, 2025

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Encrypted ChatGPT?

Sam Altman announced OpenAI is considering encrypted chats for ChatGPT. We explore the technical challenges and why true privacy might require OpenAI to actually be "open".

Sacha Servan-Schreiber

August 22, 2025

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Launching gpt-oss-120b on Tinfoil

OpenAI just released gpt-oss-120b. We just made it available on Tinfoil with verifiable privacy guarantees.

Tinfoil Team

August 5, 2025

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Got Privacy?

An in-depth comparison of AI privacy solutions that explains why secure enclaves offer the best balance of privacy and performance for AI applications today.

Sacha Servan-Schreiber

May 15, 2025

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