Free PDF · 12 pages · October 2026

AI Engineering Cheat Sheet

What our labs measured about tokens, prompting, RAG, evals, agents, serving, cost and fine-tuning, and the rule each result teaches.

What is inside

Tokens and embeddings, and prompting that holds up
RAG: chunk size and overlap measured, embeddings, HNSW, hybrid search and reranking
Evals: error analysis first, and the ways an LLM judge misleads you
Agents in production, serving and inference, and where the cost goes
Fine-tuning: when it pays, and why production breaks

Each result comes from a lab in the AI Engineering course, with the model it ran on. Every lesson is linked, so you can read how it was measured.

Two courses by the author of this page:

214 lessons · 10 free to read

₹1,333 in India · $35 elsewhere, once

You own this course

770 lessons · 18 free to read

₹1,111 in India · $25 elsewhere, once

You own this course

Every lesson in both courses has an AI tutor beside it. It reads the same lesson you are reading and answers your questions from it. Try the tutor

Real pages from the PDF

Free PDF · 12 pages · October 2026

What our labs measured about tokens, prompting, RAG, evals, agents, serving, cost and fine-tuning, and the rule each result teaches.

Tokens and embeddings, and prompting that holds up
RAG: chunk size and overlap measured, embeddings, HNSW, hybrid search and reranking
Evals: error analysis first, and the ways an LLM judge misleads you
Agents in production, serving and inference, and where the cost goes
Fine-tuning: when it pays, and why production breaks

Each result comes from a lab in the AI Engineering course, with the model it ran on. Every lesson is linked, so you can read how it was measured.

Two courses by the author of this page:

214 lessons · 10 free to read

₹1,333 in India · $35 elsewhere, once

You own this course

770 lessons · 18 free to read

₹1,111 in India · $25 elsewhere, once

You own this course

Every lesson in both courses has an AI tutor beside it. It reads the same lesson you are reading and answers your questions from it. Try the tutor

Real pages from the PDF