QECTOR · qectorlab.github.io

Live site: https://qector.store

QECTOR Decoder v3: production-grade, simulation-validated quantum error correction decoder library (Rust + Python). Exact MWPM parity with PyMatching through d=15. +35.7% LER reduction with Belief-Matching at d=5. GPU batch (CUDA/OpenCL) bit-identical to CPU. BP-OSD for qLDPC. Free professional Workbench GUI.

Important licensing: QECTOR Decoder v3 is Source-Available (not free) for commercial use. The Workbench GUI app is free for everyone. See /pricing and /commercial on the site.

This repo serves the static GitHub Pages site (CNAME qector.store). Source in source/.

Quick Start

pip install qector-decoder-v3
# Free GUI (recommended for most)
# https://github.com/qectorlab/qector-decoder-workbench/releases/tag/v3.4.0

Reproducible claims and artifacts: https://github.com/GuillaumeLessard/qector-decoder

Verified Claims (see /benchmarks and GitHub artifacts)

• Exact MWPM parity d=3 to d=15 vs PyMatching
• Belief-Matching: -35.7% LER at d=5 (circuit noise)
• 98.3% optimal shots at d=9
• GPU batch: native, bit-identical output
• Full Stim / Sinter / PyMatching / Qiskit compatible

All numbers backed by public SHA-256 artifacts, seeds, and harness in the decoder repo.

Key Pages on Site

• / : Homepage with Validation Report table + interactive simulator
• /changelog : Version history (PyPI RSS powered)
• /benchmarks : Full tables + Methodology & Reproducibility + direct repro commands + artifact links
• /pricing : Transparent tiers, honesty register, Source-Available language
• /commercial : Evaluation pilots, free vs licensed split, tiers (Researcher/Academic/Commercial/Enterprise)
• /decoder , /workbench , /sati-os , /sati-codex , /evidence , /about

Branding & Scope

• qectorlab brand for the Workbench + site
• Decoder core maintained at https://github.com/GuillaumeLessard/qector-decoder
• Creator: Guillaume Lessard (ORCID 0009-0000-3465-3753) / iD01t Productions
• Related: SATI CODEX (LCL-833 / LCL-832), "Mastering QEC" book

Local Development (source/)

cd source
npm install
npm run dev
npm run build   # outputs to source/dist

Deploy

GitHub Actions (.github/workflows/deploy.yml) builds source/ on push to main and deploys source/dist via Pages.

Files of Note

• CNAME, _redirects, 404.html (SPA support), sitemap.xml, robots.txt, llms*.txt, ai.txt
• source/ : full Vite + React 19 + TS + Tailwind app
• root published files: current live snapshot (CI keeps in sync on deploy)

Primary source of truth for code + validation: the qector-decoder repo. This site presents it professionally.

Created by Guillaume Lessard. All rights and research under iD01t Productions.