# PrimeIntellect releases Dion optimizer code on GitHub

> The new PrimeIntellect‑ai/dion repo provides PyTorch‑compatible implementations of the Dion and Muon optimizers for distributed model training.

Oossa · 2026-10-08 · https://oossa.com/en/primeintellect-releases-dion-optimizer-code-on-github

PrimeIntellect‑ai has published a GitHub repository called dion that contains efficient implementations of the Dion and Muon optimizers for distributed machine‑learning training. The code works with modern PyTorch (v2.7 or newer) and supports DTensor‑based parallelism such as DDP, FSDP2 and tensor parallelism. Users can install the package directly from the repo with pip. The README includes sample scripts for training a GPT‑small model on eight GPUs.

## The facts

- Repo URL: https://github.com/PrimeIntellect-ai/dion
- Published: Thu Oct 08 2026

## Why it matters

It gives researchers a ready‑to‑use, communication‑efficient optimizer that can speed up large‑scale model training.

## Sources & references

1. [New repository PrimeIntellect-ai/dion: Dion optimizer algorithm (fork of microsoft/dion)](https://github.com/PrimeIntellect-ai/dion) – Prime Intellect, 2026-10-08

Last updated: 2026-10-08