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Plagiarism and AI Rules at European Universities: What International Students Must Know

August 23, 2026

Plagiarism and AI Rules at European Universities: What International Students Must Know

Using ChatGPT to brainstorm an essay topic.

Using AI to improve grammar.

Asking an AI tool to generate an entire assignment.

Using AI to rewrite someone else’s work so plagiarism software does not recognise it.

These may all involve artificial intelligence, but universities can treat them very differently.

As generative AI becomes part of everyday student life, European universities are developing increasingly detailed rules governing tools such as ChatGPT, Copilot, Gemini and other AI assistants.

The most important thing international students need to understand is:

There is no single AI rule that applies to every European university.

Rules may differ between universities, faculties, programmes and even individual assignments. At KU Leuven, for example, university-wide guidance exists, but teaching staff, programmes and faculties can impose additional restrictions depending on the learning objectives of a particular assignment. The University of Helsinki similarly states that teachers can restrict AI use where it would interfere with the intended learning outcomes.

So before using AI for assessed work, students need to know exactly what their university permits.

First: What Is Plagiarism?

Plagiarism generally occurs when you present another person’s ideas, words or work as though they were your own without proper acknowledgement.

Traditional examples include:

Copying text from a website
Using another student’s assignment
Copying material from a journal article without citation
Paraphrasing another author’s ideas without acknowledgement
Submitting someone else’s project
Reusing material in ways prohibited by university rules

Generative AI has introduced a new complication.

What if the text was not written by another student or copied directly from a website?

What if AI generated it?

Universities increasingly focus on authorship and academic integrity, not simply whether text matches an existing source. The University of Amsterdam states that lecturers must be able to assess the student’s own knowledge, understanding and skills, and that submitting work not written by the student can constitute fraud.

That means:

“It isn’t copied from Google” does not automatically mean it is academically acceptable.

Is Using ChatGPT Automatically Plagiarism?

No.

But it is also not automatically permitted.

The answer depends on:

University policy + course policy + assignment instructions + how you used the tool

Different European universities currently take different approaches.

University of Amsterdam

The University of Amsterdam currently tells students that AI tools are forbidden for assessed work unless explicitly stated otherwise. It allows its own UvA AI Chat to support learning activities such as brainstorming and testing knowledge, but students remain responsible for producing their own assessed work.

University of Helsinki

The University of Helsinki takes a more permissive general approach. Large language models can normally be used as learning and writing support, but individual teachers can prohibit their use when AI would interfere with the learning objectives. Students must also report AI use when required by the teacher.

KU Leuven

KU Leuven also permits responsible use of generative AI but requires students to remain responsible for what they submit. Individual courses can restrict AI, particularly where the skill being assessed is something AI could perform on the student’s behalf, such as academic writing or translation.

These examples demonstrate why international students should never rely on a general statement such as:

“AI is allowed in Europe.”

or:

“ChatGPT is banned at European universities.”

Neither statement is universally correct.

Think of AI Use in Three Categories

A useful way to understand university AI rules is to think in terms of three broad categories.

Category 1: AI Is Allowed

The university or lecturer may permit AI for certain purposes.

Examples might include:

Brainstorming
Generating study questions
Explaining difficult concepts
Language assistance
Developing ideas
Receiving feedback
Coding assistance where permitted

At the University of Amsterdam, for example, permitted learning-support uses of its university AI tool include brainstorming and testing knowledge before an exam.

Even when AI is allowed, you remain responsible for the accuracy and quality of your work.

Category 2: AI Is Allowed, But You Must Disclose It

Some assignments permit AI but require transparency.

You might need to state:

Which AI tool you used
How you used it
Which sections were assisted
What prompts or process were involved

The exact disclosure format varies.

KU Leuven specifically emphasises transparency where AI substantially contributes to work, while the University of Helsinki requires AI use to be reported according to teacher instructions and research-integrity principles.

Category 3: AI Is Not Allowed

A lecturer may prohibit AI completely for a particular assessment.

This is particularly likely when the purpose of the assignment is to evaluate your own ability to:

Write
Translate
Analyse
Code
Solve a problem
Develop an argument

If the instructions say:

“No generative AI permitted”

using it can be treated as academic misconduct.

The University of Helsinki explicitly states that using a language model in an assessment where it has been prohibited—or failing to report AI use when required—can be treated in the same way as other cases of cheating and plagiarism.

The Most Important Rule: Read the Assignment Instructions

You should not decide whether AI is allowed based on what happened in another class.

For example:

Course A: AI permitted for brainstorming

does not mean:

Course B: AI permitted for essay writing

And:

Professor A allows ChatGPT

does not mean:

Professor B must allow it.

KU Leuven’s current guidance specifically states that individual lecturers and programmes can impose different requirements depending on the learning goals of an assignment.

Before starting assessed work, check:

Course handbook
Assignment brief
Learning platform
Faculty guidelines
Examination regulations
Professor’s instructions

If the rules are unclear, ask the lecturer before submitting the work.

AI-Assisted Work vs AI-Generated Work

This distinction is becoming increasingly important.

AI-Assisted

You write the work yourself but use AI to support the process.

For example:

You write the paragraph → AI suggests grammar improvements → You review and edit it

or:

You develop your argument → AI helps identify additional questions → You research those questions yourself

AI-Generated

The AI produces significant parts of the content that you submit.

For example:

Prompt → AI writes 1,500-word essay → Student submits it

Universities are much more likely to consider the second situation problematic when independent authorship is required.

KU Leuven states that undisclosed work largely generated by GenAI can be considered an academic irregularity.

Can You Use AI to Improve Your English?

Sometimes.

This is particularly relevant for international students.

You may want AI to:

Correct grammar
Improve sentence clarity
Check spelling
Suggest vocabulary
Translate phrases

Some universities may permit this type of language assistance.

But the rules can change when language ability itself is being assessed.

Imagine you are taking:

Academic English Writing

If the assignment is designed to evaluate your own English writing ability, asking AI to rewrite your essay could undermine the purpose of the assessment.

KU Leuven specifically notes that AI may be restricted where an assignment’s learning objective is academic writing or translation.

So the question is not simply:

“Did AI only fix my English?”

Ask:

“Was my own English ability part of what the lecturer was assessing?”

Can You Use AI for Coding Assignments?

Again, it depends.

AI tools can now generate:

Python
Java
C++
SQL
JavaScript
MATLAB
R

But if an assignment is designed to assess your ability to write that code independently, submitting AI-generated code may violate the rules.

KU Leuven’s current guidance explicitly includes programming assignments among areas where course-specific AI rules may apply and notes that some AI uses, such as generated code, may require additional transparency.

Before using AI for programming, check whether the assignment permits:

Code suggestions
Debugging
Autocomplete
Full code generation
AI-assisted documentation

Do not assume all of these are treated equally.

What About Your Master’s Thesis?

Students should be especially careful with AI during thesis work.

A Master’s thesis is expected to demonstrate your ability to:

Conduct research
Analyse evidence
Develop arguments
Apply methodology
Produce academic work

Universities may permit certain AI-assisted activities while still requiring you to retain intellectual ownership of the thesis.

The University of Helsinki states that its AI-reporting principles also apply to theses. KU Leuven similarly applies responsible GenAI and scientific-integrity principles to research and Master’s work.

Before using AI for your thesis, check whether you can use it for:

Brainstorming research questions
Language correction
Literature organisation
Coding
Data analysis
Summarisation
Writing sections
Creating figures

The answer may differ for each activity.

AI Cannot Be Your Academic Source

One of the biggest risks of using generative AI is false information.

AI can produce answers that sound convincing while still being incorrect.

KU Leuven warns students that AI outputs can contain fabricated information and even fictitious references. Students remain responsible for verifying what they submit.

Imagine AI provides:

Smith, J. (2024). Artificial Intelligence and European Higher Education. Journal of Digital Learning, 18(4), 220–241.

It looks completely legitimate.

But the article might not exist.

If you include it in your thesis without checking, you are still responsible for the false citation.

Never Copy AI References Without Checking Them

Before using any source suggested by AI:

Step 1: Search for the actual paper.

Step 2: Verify the author.

Step 3: Verify the title.

Step 4: Verify the journal.

Step 5: Verify the publication year.

Step 6: Read the actual source.

Step 7: Cite the original source, not simply the AI’s description of it.

KU Leuven advises students to verify AI outputs carefully and locate genuine source material that can be cited.

This is particularly important for:

Literature reviews
Master’s theses
Research reports
Academic essays

Can AI Help You Paraphrase?

This is another high-risk area.

Suppose you copy a paragraph from a journal article and ask:

“Rewrite this so plagiarism software cannot detect it.”

Even if the words change, the underlying ideas still came from someone else’s work.

You still need to acknowledge the original source.

KU Leuven’s guidance specifically identifies using paraphrasing tools on text you did not write in order to hide plagiarism as prohibited.

AI cannot turn someone else’s intellectual work into your own simply by changing the wording.

What Is Self-Plagiarism?

Students are also sometimes surprised by rules around reusing their own previous work.

For example, you may have written an essay during your Bachelor’s and later want to submit significant parts of it during your Master’s.

Although you wrote the original text yourself, universities may still have rules governing reuse of previously assessed work.

Do not assume:

“I wrote it, so I can submit it again.”

Check your university’s academic-integrity regulations before recycling previous assignments.

Universities May Ask You to Explain Your Work

Students sometimes think academic-integrity investigations depend entirely on plagiarism or AI-detection software.

That is not necessarily the case.

At KU Leuven, students may be asked to explain how they created parts of an assignment, and examination committees may ask them to discuss submitted work where AI use is questioned. The university therefore advises students to keep evidence of their working process, including interim versions.

This is one reason it is useful to retain:

Drafts
Notes
Research documents
Version history
Data
Calculations
Code history
References

If you genuinely produced the work yourself, these materials can help demonstrate your academic process.

Keep Your Drafts

A simple habit can protect you:

Do not delete every previous version of your assignment.

Keep:

Draft 1 → Draft 2 → Supervisor comments → Draft 3 → Final

If you use permitted AI assistance, also consider keeping records of how you used it where required.

This creates a clearer record of how your work developed.

Do Universities Use Plagiarism Software?

Many universities use plagiarism-screening systems as part of academic-integrity procedures.

For example, KU Leuven’s Faculty of Medicine requires Master’s theses to be uploaded through Turnitin as part of its plagiarism-screening process.

However, a plagiarism similarity score does not by itself tell the complete academic story.

Correctly quoted text may create similarity.

Improperly paraphrased material may create less similarity.

And AI-generated work introduces authorship questions that are different from traditional copy-and-paste plagiarism.

The important goal should therefore not be:

“How do I make my plagiarism percentage lower?”

It should be:

“Have I properly acknowledged every source and followed the rules for producing this assignment?”

Do Not Try to “Humanise” AI Text to Avoid Detection

There are tools that claim to:

Humanise AI writing
Bypass AI detectors
Rewrite generated text
Remove plagiarism
Make ChatGPT text undetectable

Using these does not solve the academic-integrity problem.

If the university required the work to be your own, disguising AI-generated text does not suddenly make you the author.

It may instead make the situation more serious because it suggests deliberate concealment.

The safer approach is extremely simple:

Follow the permitted-use rules rather than trying to bypass them.

Can You Upload Your Research Data to ChatGPT?

Be very careful.

Your assignment may contain:

Personal information
Interview transcripts
Company information
Patient information
Confidential research
Unpublished findings
Intellectual property

Uploading that material to an external AI service can create privacy, confidentiality and copyright issues.

KU Leuven explicitly advises users not to upload privacy-sensitive, confidential or protected research information into GenAI systems without appropriate permission.

Some universities therefore provide institution-approved AI systems with additional privacy protections.

Use the university-recommended tool where one is provided.

What Happens If You Break the Rules?

Consequences vary by university and by the seriousness of the case.

Possible academic procedures may include:

Investigation by the lecturer
Referral to an examination committee
Discussion or hearing with the student
Invalidation of an assignment
Academic penalties

At the University of Amsterdam, suspected fraud and plagiarism can be referred to the Examination Board, which has authority to impose sanctions. One UvA faculty’s published guidance states that plagiarised work can be declared invalid and that serious sanctions can include exclusion from examinations for a period of time.

KU Leuven likewise states that unauthorised GenAI use can be treated as an examination irregularity and handled through the university’s formal examination procedures.

The exact penalty depends on university regulations and the circumstances.

Intent Can Matter, But “I Didn’t Know” Is a Risky Defence

International students may come from academic systems with very different citation practices.

Something accepted during your previous degree may not be acceptable at your European university.

Do not assume that academic-integrity rules are obvious or identical everywhere.

During your first weeks, familiarise yourself with:

Citation guidelines
Plagiarism policy
AI policy
Examination regulations
Thesis guidelines

Universities often provide dedicated academic-integrity or AI-literacy resources for students. For example, the University of Amsterdam currently offers students an AI-literacy module covering GenAI limitations and responsible academic use.

A Simple AI Traffic-Light System

When approaching an assignment, think of AI use like this.

GREEN: Usually Lower-Risk Uses

Only when permitted

Brainstorming topics
Generating practice questions
Explaining difficult concepts
Organising study plans
Receiving feedback
Language assistance where allowed

AMBER: Check the Rules First

Rewriting sentences
Summarising literature
Generating code
Translating academic work
Structuring an essay
Analysing data
Producing thesis content

These activities may be permitted, restricted or require disclosure.

RED: High-Risk Behaviour

Generating an entire assignment and submitting it as your own
Using AI during an exam where it is prohibited
Inventing or submitting unverified references
Using AI to disguise copied work
Hiding AI use when disclosure is required
Uploading confidential research information without permission

When in doubt, ask the lecturer before using the tool.

8 Things to Check Before Using AI for an Assignment

1. Is AI Allowed?

Look at the actual assignment instructions.

2. Which AI Uses Are Allowed?

Brainstorming may be permitted while writing may not be.

3. Do I Need to Disclose It?

Find out whether you must explain your AI use.

4. Is a Specific AI Tool Required?

Your university may recommend or require an institution-approved platform.

5. Am I Still Producing the Intellectual Work?

Ask yourself whether the lecturer is evaluating your ability or the AI’s ability.

6. Have I Verified Every Fact?

Never assume AI-generated information is correct.

7. Have I Checked Every Reference?

Never submit a reference you have not verified.

8. Am I Uploading Anything Confidential?

Protect research data, personal information and unpublished work.

A Practical Example

Imagine your lecturer gives you an assignment:

2,500-word essay on European energy policy.

Student A

Uses AI to generate search keywords.

Finds genuine journal articles.

Reads the sources.

Develops their own argument.

Writes the essay independently.

Checks grammar using an allowed tool.

Discloses AI use if required.

Student B

Enters the essay question into AI.

Receives 2,500 words.

Changes a few sentences.

Copies the references without checking them.

Submits the essay as original work.

Both students used AI.

But academically, these situations can be completely different.

The issue is not simply:

“Did you use AI?”

It is:

“How did you use AI, what did the assessment permit, and does the submitted work genuinely demonstrate your own learning?”

Your AI and Plagiarism Checklist

Before submitting any university assignment, ask yourself:

Did I write the work I am claiming as my own?

Have I cited every external source correctly?

Did I check the course’s AI rules?

Did I follow the lecturer’s specific instructions?

Have I disclosed AI use if required?

Did I verify every AI-generated fact?

Did I verify every reference?

Can I explain and defend everything I submitted?

Do I have drafts or evidence showing how the work developed?

If the answer to any of these is no, review the work before submitting it.

The Bottom Line

European universities are not simply choosing between “AI allowed” and “AI banned.”

The reality is becoming more nuanced.

Some universities allow AI as a learning tool.

Others restrict its use in assessed work unless explicit permission is given.

Even within the same university, different courses can apply different rules depending on what the assessment is designed to measure. Current guidance from the University of Amsterdam, KU Leuven and the University of Helsinki demonstrates how significantly institutional approaches can differ.

For international students, the safest principle is:

Never assume. Check. Disclose when required. Verify everything.

AI can help you understand difficult topics, improve your learning process and develop useful professional skills.

But it should not replace the academic work your degree is supposed to prove you can do.

At Span International, we help students prepare for studying abroad beyond simply securing a university offer. From course selection and applications to documentation and visa guidance, understanding the academic environment of your destination is also an important part of preparing for international education.

Getting admission proves that a university is ready to teach you.

Academic integrity proves that the degree you eventually earn genuinely represents what you learned.