Your AI from Scratch - Building a Customised LLM 🧠💻

Google Milan, 4 Via Federico Confalonieri, Milano, 20124

GDG on Campus Polytechnic University of Milan

🧠 Your AI from Scratch: Building a Customised LLMStop treating language models as black boxes. Join us to build your own...

Dec 12, 2025, 5:30 – 7:00 PM (UTC)

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About this event

🧠 Your AI from Scratch: Building a Customised LLM

Stop treating language models as black boxes. Join us to build your own LLM from the ground up—understanding every layer, every attention head, and every training step that brings an AI to life.


What You'll Learn:

  • 🏗️ Transformer architecture: decoder blocks, attention mechanisms, and the building blocks of modern LLMs

  • 🔄 From tokens to text: embeddings, RoPE (Rotary Positional Embeddings), and how models understand language

  • 🎯 Training your own Gemma: implementing a complete training pipeline with PyTorch

  • ⚡ Modern training practices: mixed precision, gradient accumulation, learning rate scheduling

  • 🛠️ Beyond APIs: why building from scratch teaches you what no API documentation can

Format - Talk + Demo:

  • 📊 Architectural deep-dive with visual explanations

  • 🧪 Training demonstrations and inference examples

  • 📦 Open-source stack you can take home and experiment with


Who Should Attend: Developers and ML practitioners who want to understand what's really happening inside language models. Whether you're tired of treating LLMs as magic or ready to customise models for specific needs, you'll leave with a complete understanding of the foundations.

Prerequisites: Python and basic ML concepts. PyTorch familiarity is helpful but we'll cover the essentials.

Plus, once the talk is over you can stay a bit longer for a networking aperitivo where you can chat, meet new people, and just have a good time. ✌️

When

When

Friday, December 12, 2025
5:30 PM – 7:00 PM (UTC)

Speaker

  • Luca Massaron

Partners

Google logo

Google

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Meetup

Organizers

  • Mouadh Ltifi

    Google Developer Group PoliMi

    Lead

  • Pierantonio Mauro

    Lead

  • Ginevra Carradori

    Politecnico di Milano

    Lead

  • Pablo Giaccaglia

    Lead

  • Nikita Litovchenko

    Lead

  • Marco Del Togno

    Lead

  • Filippo Wang

    Team Member

  • Marcello Martini

    Politecnico di Milano

    Team Member

  • Ashley Andrea Squarcio

    Politecnico di Milano

    Team Member

  • Daniele Mauro

    Team Member

  • Kevin Abate

    Team Member

  • Roberto Benatuil Valera

    Team Member

  • Ruslan Kostin

    Team Member

  • Luca Stefanini

    Team Member

  • Subhadip Banerjee

    Team Member

  • Federico Grandi

    Team Member