REDDIT · REDDIT// 5h agoOPENSOURCE RELEASE

simple_dlm makes diffusion LMs approachable

simple_dlm is a tiny open-source diffusion language model implementation trained on Karpathy's Tiny Shakespeare dataset, with a 7.5M-parameter character model and a 66-token vocabulary. The repo is more learning artifact than production model, but it gives developers a compact path into masked/discrete diffusion for text.

// ANALYSIS

The real value here is demystification: diffusion language models still sound exotic, and a small repo that runs on an M2 Air can make the mechanics feel inspectable.

–Implements a hand-built diffusion language model rather than wrapping a large framework
–Uses a tiny character-level setup, which keeps tokenizer, masking, training, and sampling concepts visible
–Fits the current wave of interest around non-autoregressive and masked diffusion text generation
–Output quality is intentionally rough, but the project works as a practical learning scaffold

// TAGS

simple-dlmllmopen-sourceresearchdevtool

DISCOVERED

5h ago

2026-04-21

PUBLISHED

8h ago

2026-04-21

RELEVANCE

6/ 10

AUTHOR

Encrux615