DEV Community

Achin Bansal
Achin Bansal

Posted on • Originally published at gridthegrey.com

First Look: JustVugg Releases NanoEuler GPT-2 Scale LLM Built in Pure C/CUDA

Forensic Summary

NanoEuler is an open-source GPT-2-class language model (~116M parameters) built entirely from scratch in C/CUDA, including hand-written backpropagation, a BPE tokenizer, FlashAttention, pretraining, and supervised fine-tuning — with RLHF/DPO planned. For defenders, the significance lies in the democratisation of low-level, dependency-free LLM training infrastructure: adversaries gain a highly portable, auditable, and modifiable training stack that bypasses standard ML framework telemetry and supply chain controls. Security teams should treat this class of 'from-scratch' open-source LLM tooling as a potential foundation for covert fine-tuning pipelines, backdoor insertion, and evasion of model-level safety controls.


Read the full technical deep-dive on Grid the Grey: https://gridthegrey.com/posts/first-look-justvugg-releases-nanoeuler-gpt-2-scale-llm-built-in-pure-c-cuda/

Top comments (0)