Udemy – Building LLMs like ChatGPT from Scratch and Cloud Deployment

Large Language Models like GPT-4, Llama, and Mistral are no longer science fiction; they are the new frontier of technology, powering everything from advanced chatbots to revolutionary scientific discovery. But to most, they remain a “black box.” While many can use an API, very few possess the rare and valuable skill of understanding how these incredible models work from the inside out.

What if you could peel back the curtain? What if you could build a powerful, modern Large Language Model, not just by tweaking a few lines of code, but by writing it from the ground up, line by line?

This course is not another high-level overview. It’s a deep, hands-on engineering journey to code a complete LLM—specifically, the highly efficient and powerful Mistral 7B architecture—from scratch in PyTorch. We bridge the gap between abstract theory and practical, production-grade code. You won’t just learn what Grouped-Query Attention is; you’ll implement it. You won’t just read about the KV Cache; you’ll build it to accelerate your model’s inference.

You will learn to build and understand:

• The Origins of LLMs: The evolution from RNNs to the Attention mechanism that started it all.
• The Transformer, Demystified: A deep dive into why the Transformer architecture works and the critical differences between training and inference.
• The Mistral 7B Blueprint: How to architect a complete Large Language Model, replicating the global structure of a state-of-the-art model.
• Core Mechanics from Scratch:
• Tokenization: Turning raw text into a format your model can understand.
• Rotary Positional Encoding (RoPE): Implementing the modern technique for injecting positional awareness.
• Grouped-Query Attention (GQA): Coding the innovation that makes models like Mistral so efficient.
• Sliding Window Attention (SWA): Implementing the attention variant that allows for processing much longer sequences.
• The KV Cache: Building the essential component for lightning-fast text generation during inference.
• End-to-End Model Construction: Assembling all the pieces—from individual attention heads to full Transformer Blocks—into a functional LLM in PyTorch.
• Bringing Your Model to Life: Implementing the logic for text generation to see your model create coherent language.
• Production-Grade Deployment: A practical guide to deploying your custom model using the blazingly fast vLLM engine on the Runpod cloud platform.

Who this course is for:

• Python Developers curious about Deep Learning for NLP
• Deep Learning Practitioners who want gain a mastery of how things work under the hoods
• Anyone who wants to master transformer fundamentals and how they are implemented
• Natural Language Processing practitioners who want to learn how state of art NLP models are built
• Anyone wanting to deploy GPT style Models

DOWNLOAD LINK: Building LLMs like ChatGPT from Scratch and Cloud Deployment

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