4 lessons
Serving Many Fine-Tunes at Once with Multi-LoRA
A company might have 500 customers, each with their own fine-tuned model. Do you really need 500 copies of a 140 GB model? No — here's why.
Structured Output and Guided Decoding
How to make a model that predicts free-form text guarantee its output is always valid JSON, or always matches a fixed grammar — without retraining it.
Model Routing and Semantic Caching
You don't need your biggest, most expensive model to answer "what's 2+2". Sending every request to the same model is leaving money on the table.
Test-Time Compute and Reasoning Models
Some models get smarter by thinking longer before answering. That changes the entire cost equation this course has built up — here's how.