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URL: https://www.coursera.org/learn/ai-hallucinations

⇱ 2026 Fixing AI Errors & Hallucinations, And Fact-Checking | Coursera


2026 Fixing AI Errors & Hallucinations, And Fact-Checking

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2026 Fixing AI Errors & Hallucinations, And Fact-Checking

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Gain insight into a topic and learn the fundamentals.
1 hour to complete
Flexible schedule
Learn at your own pace

Gain insight into a topic and learn the fundamentals.
1 hour to complete
Flexible schedule
Learn at your own pace

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Recently updated!

January 2026

Assessments

1 assignment

Taught in English

Build your subject-matter expertise

This course is part of the AI For Business Productivity - 2026 Specialization
When you enroll in this course, you'll also be enrolled in this Specialization.
  • Learn new concepts from industry experts
  • Gain a foundational understanding of a subject or tool
  • Develop job-relevant skills with hands-on projects
  • Earn a shareable career certificate

There are 3 modules in this course

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 How to spot faulty logic, outdated knowledge, and reproducible mistakes.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.

What's included

3 videos

3 videosβ€’Total 14 minutes
  • Introduction and welcomeβ€’3 minutes
  • Definition: What is an AI hallucination vs. what is a basic AI errorβ€’8 minutes
  • Infographic and debugging steps to identify and fix AI hallucinations vs errorsβ€’4 minutes

What's included

1 video

1 videoβ€’Total 8 minutes
  • Example of real errors made by AIβ€’8 minutes

What's included

4 videos1 assignment

4 videosβ€’Total 31 minutes
  • Fixing AI bugs and hallucinationsβ€’13 minutes
  • Example of debugging an AI hallucination and getting to the root causeβ€’7 minutes
  • Simple yet effective tactic to make small changes and test themβ€’4 minutes
  • Good practices for testing the software made by your AI coding assistantβ€’6 minutes
1 assignmentβ€’Total 30 minutes
  • Courses testβ€’30 minutes

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Instructor

Alex Genadinik
117 Coursesβ€’31,371 learners

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Yes. In select learning programs, you can apply for financial aid or a scholarship if you can’t afford the enrollment fee. If fin aid or scholarship is available for your learning program selection, you’ll find a link to apply on the description page.

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