This page may contain stale information. Last updated: 2026-08-15
Definition
HEIR is Google’s open-source (Apache 2.0) MLIR-based compiler toolchain for homomorphic-encryption, part of the Private Computing Toolkit. It converts pre-trained AI models to run inference on encrypted inputs without server-side decryption.
Key Points
- Backends: OpenFHE, Lattigo, tfhe-rs, Jaxite; accelerator targets include GPU, TPU, FPGA, ASIC
- 2026-08-14: Public release with four shipped demo applications and GitHub source
- Academic collaborators: Georgia Tech, CMU, UC Santa Barbara, Purdue, Edinburgh, Tsinghua, and others
- Vision: “one-click” encrypted inference for non-cryptographers — still early for production scale