Python LLM Stack Overview

Why it matters

Python stack dominates LLM dev. Understanding shapes tooling.

The architecture

Foundation: PyTorch + HF.

Training: PEFT + TRL + Accelerate + DeepSpeed.

Serving: vLLM + TGI.

How it works end to end

HF Transformers + Datasets central.

PEFT + TRL for FT.

Accelerate + DeepSpeed for scale.

vLLM + TGI for serving.