LLM Builder Kit - Hands-On LLM Customer Service

1. LLM Builder Kit - Hands-On LLM Customer Service
2. LLM Builder Kit - Hands-On LLM App Comments & Reviews (2026)

Ever wondered how ChatGPT actually works under the hood? LLM Builder Kit lets you build a real language model from scratch — on your phone.
Whether you're a curious beginner or a seasoned developer, this app walks you through every fundamental concept that powers modern AI: tokenization, n-gram probabilities, training epochs, loss curves, and temperature sampling.
Learn Mode — 8 interactive chapters:
Understand how raw text becomes a trained model, step by step. Visualize attention weights, explore embeddings, and interact with a live fairy tale language model as you learn.
Build Mode — 6-step wizard:
Choose your own domain (movie reviews, cooking, sports, poetry, and more), configure your tokenizer and hyperparameters, watch your model train in real time, then generate text with your finished model.
No cloud. No API keys. Everything runs on-device.
Perfect for students, developers, educators, and anyone curious about how AI really works.

LLM Builder Kit - Hands-On LLM App Comments & Reviews