AI Errors & Hallucinations: Debugging & Fact-Checking (Udemy.com)
Spot, prevent, and fix AI hallucinations, logic errors, and coding assistant mistakes in real projects.
Created by: Alex Genadinik
Last updated February 2026
What you will learn
- Learn the difference between different AI errors: Hallucinations vs. regular errors vs. bad reasoning
- Techniques to fix AI hallucinations and common errors
- Avoid costly errors
- Debug AI code assistant output with confidence.
How it compares
Against the other 1,182 rated Udemy courses in IT & Software on CourseDuck:
- Rating4.3 out of 5higher than 20% of them
- Reviews496#583 of 1,183 by number of reviews
- Length0.9 hoursshorter than 97% of them
- Last updatedFebruary 2026more recently than 67% of them
Course Description
Not all AI mistakes are the same. Knowing the difference can save you time, money, and headaches. This course gives you the skills to identify, debug, and prevent AI hallucinations and errors across different use cases, from natural language generation to coding assistants.
We start with the fundamentals:
What is an AI hallucination? How to detect fabricated facts, fake citations, and confident falsehoods.
What is an AI error? How to spot faulty logic, outdated knowledge, and reproducible mistakes.
Quick reality-check techniques to verify AI output before it causes harm.
Best prompting strategies to reduce risk and improve accuracy.
Then we move into AI code assistant errors:
Debugging incorrect AI-generated code.
Avoiding subtle logic bugs and broken dependencies.
Testing AI-written functions before deployment.
Combining human review with AI-generated solutions for reliable output.
We’ll also cover real-world case studies where misunderstanding an AI’s mistake led to costly outcomes, and how small changes in workflow could have prevented them. You’ll see how these lessons apply not only to text and coding assistants, but also to AI-driven data analysis, customer service bots, and decision support systems.
Finally, you’ll learn a systematic AI output verification framework you can apply to any LLM, whether it’s ChatGPT, Claude, Gemini, or open-source models. This framework ensures you catch misinformation, prevent damaging decisions, and maintain quality in both everyday AI tasks and high-stakes professional work.
By the end of this course, you’ll be able to:
Tell hallucinations and errors apart instantly.
Design prompts that minimize AI mistakes.
Verify facts and sources efficiently.
Debug AI code assistant output with confidence.
Perfect for developers, tech professionals, and anyone using AI tools for content, decision-making, or coding.
Instructor Details
- 4.3 Rating
496 Reviews
Alex Genadinik
One of the best teachers in the world because I teach with my heart. I help people get real results, many of whom have reached 7- and 8-figure businesses that I transparently showcase in my courses.
INSTRUCTOR BACKGROUND
3-time bestselling Amazon author, 20 years of successful entrepreneurship experience. Passionate instructor caring deeply about helping students reach full potential.
A number of my books are used in major US universities and high schools.
My current professional interests include Emotional Intelligence and productivity. I am constantly exploring ways to accomplish more with less time.
Additionally, I am interested in SEO, digital marketing, and creativity.
Originally from Ukraine.
COMMITMENT TO STUDENT SUCCESS
I go the extra mile to help students.
Education is more than acquiring knowledge or getting a job. True education is a beautiful experience, enriching your inner life while making your dreams a reality.
Invest in yourself, and give yourself the gift of elevating your life with world-class education, assisted by a caring and experienced instructor who supports you on your journey.
TEACHING AND COACHING HIGHLIGHTS
- 20+ time Udemy bestselling instructor.
- 10+ years of teaching experience.
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Reviews
By Corrado Badino on 9/29/2026
good hints to deal with AI agents, it brings me back when I had to work with some software in my university and try to debug. THe basic concepts seems to be quite the same.....
By Vito Antonio Suglia on 8/26/2026
The course is well-structured and enables you to approach issues related to AI bugs or hallucinations with greater awareness. The instructor is excellent, and the examples are clear and practical.
By Monica Atzori on 8/25/2026
interessante concettualmente per quanto non si tratti del mio ambito di attività
By Giovanni Bisti on 8/17/2026
Even though the class is in English that is not my Moher Tongue I easily followed the stream of tought. The difference between an error is clearly explained and the solutions to deal with the two situation is affordable in a feasible manner.
By Corina STANUS on 8/13/2026
I enjoyed very much the course, it was beginner friendly and very well explained.
By Scott Figueroa on 8/13/2026
Alex provides real world issues and solutions. He is very authentic and has a great teaching style. I learned a lot and he made it enjoyable.
By Giovanni Pepe on 8/3/2026
credo che i concetti teorici sono adeguati per il mio profilo, il problema è metterli in pratica
By Maria Sinigaglia on 6/18/2026
molto veloce l'esposizione per chi non sa molto di a.i. comunque argomenti molto interessanti
By Carlo Celani on 6/10/2026
Molto interessante la prima parte relativa a Errori/Allucinazioni. In merito a come si testa un programma creato da AI non mi sembra molto diverso dal test su programmi creati da essere umani. Il messaggio importante è fare i test, che per me che sono ingegnere mi pare quasi una banalità.
By Don Murphy on 6/7/2026
Alex always strives to go above and beyond in his courses. The "error vs hallucination" discussion was great. It was a bit difficult to follow the debugging example because I'm just not familiar with vibe coding. On the other hand, working with an AI coder does seem a lot like working with a developer team. You think you are communicating, but sometimes you're really not.
Quality Score
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Overall Score : 86 / 100












