stim
Source-available Rust/Python quantum error correction decoder package with MWPM, Union-Find, BP-OSD, LDPC/qLDPC, CUDA batch decoding, PyMatching/Stim validation, and reproducible benchmark artifacts.
Vendor-portable GPU decoders for quantum LDPC codes — Triton min-sum BP & Relay-BP on NVIDIA (CUDA), AMD (ROCm), and Apple-silicon (Metal), consuming any stim DetectorErrorModel.