This episode dives into strategies for fine-tuning gigantic AI models without needing massive compute. We explain parameter-efficient fine-tuning methods like LoRA (Low-Rank Adaptation), which freezes the original model and trains only small adapter weights, and QLoRA, which goes a step further by quantizing model parameters to 4-bit precision. You’ll learn why techniques like these have become essential for customizing large language models on modest hardware, how they preserve full performance, and what recent results (like fine-tuning a 65B model on a single GPU) mean for practitioners.

In this episode, we break down what diffusion models are and why they’ve become the go-to method for AI image generation. You’ll learn how these models gradually add and remove noise to transform random pixels into coherent images, enabling use cases from art creation to image restoration. We also explore recent advances like latent diffusion, which compresses the generation process for efficiency, and discuss how diffusion techniques have achieved state-of-the-art results in text-to-image tasks while remaining flexible for control and guidance.

This episode breaks down what graph neural networks (GNNs) are and why they matter. You’ll learn how GNNs use nodes and edges to represent relationships and how message passing lets models make sense of social, biological, and networked data. We’ll also cover recent advancements like PGNN for multi-modal graphs and common pitfalls like scalability and over-smoothing.