For AI engineers

Build first. Read the chapter when it breaks.

You learn from the docs and the model. When the build breaks in a way neither can explain, take the course by the engineer who already fixed it. From $10 a month.

Free for 7 days. Valid card required. Cancel anytime.

McMahon
Cover image for Machine Learning Engineering with Python
Kuligin
Cover image for Generative AI with LangChain
Labonne
Cover image for LLM Engineer's Handbook
Cai
Cover image for The Architecture Handbook for Milvus Vector Database
Alto
Cover image for Building LLM Powered Applications

Sound familiar?

You bought the course. Then LangChain shipped 1.0.

Its chains and agents moved to langchain-classic, and half the tutorials you saved broke overnight. Every title here carries the month it came out, so you can check it first.

This course has an updated version code dated June 2024. But it is still outdated.

A LangChain learner on r/LangChain, December 2024
  1. 1

    EU AI Act

    Aug 2024

    Cover image for AI Governance and Privacy Professional Certification Program (AIGP)
    AI Governance and Privacy Professional Certification Program (AIGP)Mar 2026
  2. 2

    DeepSeek-R1

    Jan 2025

    Cover image for DeepSeek in Practice
    DeepSeek in PracticeNov 2025
  3. 3

    GPT-5

    Aug 2025

    Cover image for GenAI for .NET: Build LLM Apps with OpenAI and Ollama
    GenAI for .NET: Build LLM Apps with OpenAI and OllamaMar 2026
180AI titles released since LangChain 1.0

Does it go past the demo?

The part after the demo

You've already built the chatbot over a PDF. Our experts write about what happens once real users hit it.

traces · support-agent · production

POST /support/answer

4.82 s · 12,480 tokens

  • POST /support/answer

    4.82 s

  • Where the course stopped

    • embed_query

      120 ms

    • vector_search0 of 5 relevant1

      260 ms

    • llm.generate2,680 tokens

      1.10 s

  • tool.get_ordertimeout2

    2.00 s

  • tool.get_orderretry 1

    420 ms

  • llm.generate9,800 tokens3

    780 ms

  • eval.groundedness0.424

    130 ms

75%of our AI titles are written for engineers past the basics
  1. 1

    Retrieval that misses

    Five chunks come back. None of them holds the answer.

    Cover image for Vector Databases Deep Dive
    Chapter 5 · 2024Indexing and QueryingVector Databases Deep Dive
  2. 2

    Tools that time out

    The order API hangs for two seconds. The agent retries it blind.

    Cover image for DeepSeek in Practice
    Chapter 6 · 2025Agents with DeepSeekDeepSeek in Practice
  3. 3

    A bill for every answer

    Two model calls and 12,480 tokens to answer one customer.

    Cover image for LLM Engineer's Handbook
    Chapter 8 · 2024Inference OptimizationLLM Engineer's Handbook
  4. 4

    Answers nobody checks

    It scores 0.42 on groundedness. It ships to the customer anyway.

    Cover image for Generative AI with LangChain
    Chapter 8 · 2025Evaluation and TestingGenerative AI with LangChain

Who wrote it?

Learn from the engineers who wrote the handbook

Our experts build and ship LLM systems for a living. They write about the parts that break after the demo.

  • Cover image for LLM Engineer's Handbook
    Maxime Labonne, author of LLM Engineer's Handbook

    Maxime Labonne

    70k

    He and Paul Iusztin take one LLM app from data to deployment.

    4 titlesProfile
  • Cover image for Generative AI with LangChain
    Leonid Kuligin, author of Generative AI with LangChain

    Leonid Kuligin

    A staff AI engineer at Google Cloud on taking LangGraph agents to production.

    4 titlesProfile
  • Cover image for Building LLM Powered Applications
    Valentina Alto, author of Building LLM Powered Applications

    Valentina Alto

    A Microsoft AI architect on building agents with memory and tools.

    4 titlesProfile
  • Cover image for The Architecture Handbook for Milvus Vector Database
    Yudong Cai, author of The Architecture Handbook for Milvus Vector Database

    Yudong Cai

    He wrote the core vector engine inside Milvus. This 2026 handbook explains it.

Why not just ask the model?

The agent loops and nobody can say why

Keep building with the assistant open. When the same tool call fails for the fourth time, read the chapter by someone who has fixed it.

Your agent, this afternoon
planget_order()errorretry4th try

Same call, same error

ExpertEdge
Cover image for Generative AI with LangChain
Chapter 5Building Intelligent AgentsGenerative AI with LangChain, 2025

A whole chapter on building agents with LangChain and LangGraph.

102titles on building and running AI agents

Does it cover my stack?

Use the model your company already picked

OpenAI, Azure, Google Cloud or a Llama on your own box. ExpertEdge doesn't sell a model, so it has no favourite to push. The library has courses on each one.

Model providerGoogle Cloud

Is it worth the money?

Cheaper than one cohort

An evals cohort can cost $3,500. The same money buys decades of the whole library.

One evals cohort

$3,500

Price quoted on Hacker News, September 2025

29years of the whole library, at today's annual priceExpertEdge, billed yearly · $120 a year

Where does it lead?

Every skill the role asks for, laid out

Set AI Engineer as your target. ExpertEdge lines up the skills it asks for, from retrieval to evals, and shows you which one comes next.

  1. What you've shipped

    Where you are

  2. AI Safety, Evaluation & Guardrails

  3. LLM Application Development

  4. MLOps & Model Deployment

  5. Model Fine-Tuning & Adaptation

  6. Prompt Engineering

  7. Supervised & Unsupervised Learning

  8. Vector Databases & Embeddings

  9. AI Engineer

    The goal

By design

What we left out on purpose

  • Mid-build, on demand

    Open the chapter the moment the build breaks. No class to wait for.

  • Your own stack

    Every example runs on the stack you ship. Nothing to port back.

  • Answers in the library

    Search the error, land on the course. Faster than a forum.

  • Past the basics

    We won't explain tokens. Most AI titles start where you are.

You bring the project and the API key. We'll bring the chapter for when it breaks.

And the price?

One price, everything included

Monthly

Billed monthly

$15per month

Everything, month to month. Cancel anytime.

What's included

  • Every LLM, RAG and agent title
  • The whole course library
  • Skills and a passport that stay yours
Start Free Trial

Annual

Billed yearly ($120)

$10per month

Everything for a third less, paid once a year.

What's included

  • Every LLM, RAG and agent title
  • The whole course library
  • Skills and a passport that stay yours
Start Free Trial

No setup fees, no minimum seats. Invoicing available on plans of 20+ seats or more.

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