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Private AI Built on Secure Hardware

At Tinfoil we built a platform around NVIDIA confidential computing GPUs and secure enclaves to deliver state-of-the-art privacy to AI inference and training. Tinfoil delivers blazing fast inference and frontier security guarantees. The security-critical infrastructure is open-source, fully auditable, and cryptographically verifiable.

Secure Hardware Powering Tinfoil

Confidential Computing

Tinfoil leverages confidential computing to create secure enclaves that isolate AI workloads from the host system, the cloud provider, and even Tinfoil itself. Data is encrypted in memory and only decrypted inside the enclave, ensuring that no one can access your data while it is being processed.

Our platform is open-source and combines confidential computing primitives from industry leaders to deliver hardware-enforced privacy with client-side verification tools that make everything automatically verifiable.

NVIDIA

GPU confidential computing on Hopper & Blackwell architectures

AMD

AMD SEV for secure encrypted virtualization of CPU workloads

Intel

Intel TDX for hardware-isolated trust domains

Hardware-enforced privacy and transparency

Hardware-Enforced Privacy & Transparency

Tinfoil offers verifiable privacy and integrity guarantees through secure hardware enclaves, cryptographic runtime attestation, and transparency logs for supply-chain security. Your data always stays private and inaccessible to anyone other than you.

Multi-GPU confidential computing rack

Fast Multi-GPU Inference and Training

Tinfoil is the only platform on the market to offer multi-GPU confidential computing support. Tinfoil uses NVIDIA Hopper and Blackwell GPUs running in confidential computing mode, enabling private AI workloads with almost the same performance to non-private compute.

Traditional AI vs. Tinfoil AI

See the difference between trusting AI providers with your data and having verifiably private AI using secure hardware enclaves.

Traditional AI Inference

Pinky-Promise Security

Traditional AI inference: the cloud server can see user data, which is processed without hardware protection.ClientNo ProtectionData processed directly on the server with access to all data.Cloud ServerDoes see user data

With traditional AI providers:

  • Your data is decrypted before processing, exposing it in use
  • Providers can access, analyze, and even train on your data
  • Your only protection is legal agreements (DPAs)

Tinfoil AI Inference

Verifiable Hardware-Backed Privacy

Tinfoil AI inference: hardware attestation verifies a secure enclave that processes data in isolation, so Tinfoil cannot see user data.ClientSecure EnclaveData processed in secure hardware, isolated from the server.Does not see user dataHardware AttestationTinfoil Server

With Tinfoil:

  • Your data is encrypted directly to a secure enclave
  • Your data cannot be accessed or shared, not even by Tinfoil
  • These security guarantees are cryptographically verifiable

End-to-End Privacy with Secure Enclaves

This data-flow diagram illustrates how Tinfoil protects your data at every step of the AI inference or training process. From encrypted data transmission to secure GPU-powered processing inside hardware-protected enclaves, your data remains private and inaccessible, even to Tinfoil.

End-to-end private AI: the client verifies source code and remote attestation, encrypts input to a secure hardware enclave for GPU inference, and decrypts the encrypted result returned by the enclave.Tinfoil ServerSecure Hardware Enclave[Inaccessible to Tinfoil]GPU InferenceAI Model WeightsDecryptInside EnclaveEncryptTo ClientEncryptTo EnclaveDecryptResultTransparency logArtifact VerificationRemote AttestationEnclave Runtime VerificationOutput ResultClient
View detailed architecture

Read Our Technical Blog Posts

Explore our blog posts to dive deeper into Tinfoil's technology, architecture, and how we compare to other platforms.