What does grey mean on Turnitin?

On Turnitin, a grey color usually means the Similarity Report is still generating (a pending status with a stopwatch icon) or that the AI writing detection feature isn't available for that specific submission, often showing "--" and "AI writing detection unavailable," which can happen if submitted before the feature's release or if file requirements aren't met. If it's a color within the report, grey might represent a low match (like 1-14%) depending on the institution's settings, but the core meaning is often that the report isn't ready or processable yet.

What does grey highlight mean on Turnitin?

If your report is ready to view you will now see a percentage figure (if it is not ready you will see a grey box). This is known as the 'similarity index' percentage, which is the percentage of your document that has been matched to other sources.

What color is bad on Turnitin?

Interpreting the Similarity Report • Blue: No matching text. Green: One word to 24% matching text. Yellow: 25-49% matching text.

What do the different color flags mean on Turnitin?

Yellow: 25% - 49% similar text. These are submissions with a medium level of matching text. Orange: 50% - 74% similar text. These submissions have a medium to large level of similarity. Red: 75% - 100% similarity.

What color is AI on Turnitin?

The Submission Breakdown

AI-generated only - This category detects qualifying text that was likely generated from a Large Language Model (LLM) and may have been further modified by an AI bypasser. Text of this category is highlighted in a cyan color in the submission breakdown bar and in the submission.

What different Colors mean in Turnitin Similarity Report

Can Turnitin tell if you used ChatGPT?

Yes, Turnitin can detect ChatGPT-generated content using its AI writing detection feature, flagging text with predictable patterns and structures common to AI, but it's not always 100% accurate and can produce false positives, making manual review crucial, as AI detection technology is constantly evolving and can struggle with heavily edited AI text or complex human writing that mimics AI patterns. 

What is an acceptable Turnitin score?

There is no set percentage that indicates an acceptable level of similarity in a Turnitin report. Different assessment tasks return different amounts of matching text. Some assessments will include legitimate matches and are no cause for alarm.

How do students avoid Turnitin flags?

Break the rhythm: Vary sentence length and structure. Mix short, punchy sentences with longer, complex ones to create a natural flow. AI detectors often flag overly uniform sentence patterns.

Is 25% on Turnitin too high?

A 25% Turnitin score isn't inherently "high" or "bad"; it's a moderate score that requires review, as it could be from common phrases, proper citations, or significant matched text, but a score above 25% often signals needing revision, depending on your instructor and institution's guidelines. A score of 25% falls into the "Yellow" category (25-49%), indicating matched text that needs checking for proper paraphrasing, quoting, and citation to ensure originality, notes Charles Sturt University and Reading University. 

What is a flagged Turnitin score?

For example, if a student's paper is flagged with the symbol 20%, this means that 20% of the text in the paper matches other sources in Turnitin's database. The flag symbol is intended to alert educators to potential instances of plagiarism so that they can investigate further.

Why is my Turnitin score so high when I didn't plagiarize?

A high Turnitin score doesn't always mean plagiarism, and your instructor knows that. Many times, totally benign content can be flagged, needing only the expert review of your instructor to be dismissed.

Is a 20% Turnitin bad?

As a guide, somewhere between 15-20% might be considered a good score to aim for. If your score is a lot higher than this it is important to look at your Similarity Report in detail not just the overall score. Your Similarity Report will show you the breakdown of your percentage.

Can Turnitin detect paraphrasing?

We now detect likely AI -generated text even if it may have been paraphrased using an AI word spinner. Our AI paraphrasing detection is incorporated into our AI writing detection capability and does not require any change to your settings.

What color is bad for Turnitin?

Similarity score percentage ranges

Blue: No matching text. Green: One word to 24% matching text. Yellow: 25-49% matching text.

Is 1 similarity on Turnitin bad?

There is no ideal percentage to aim for as percentages are dependent on the subject and requirements of the assignment. This 'at a glance' guide should not be used as a measure of plagiarism as even a 1% score could potentially indicate plagiarism.

Is Turnitin always accurate?

Main Takeaways. Turnitin is very conservative at the 50% threshold—rarely accuses humans wrongly. It misses about one in every three AI-generated texts. High precision (98.2%) means flagged AI is almost certainly AI.

Can Turnitin detect AI writing?

Turnitin's AI writing detection tool is built around a unique transformer deep-learning architecture that enables institutions to identify when AI tools may have been used in submissions. Discover the technology behind our solution in our detailed whitepaper.

How do I lower my Turnitin similarity score?

A high similarity score could mean that very little of your paper is your own writing. To address a high percentage, consider the following: Balance the information that you use from texts with your own writing. Determine when it would be most appropriate to paraphrase, summarize, or explain an idea in your own words.

How to interpret a Turnitin report?

How do I interpret a Turnitin similarity score?

1. Blue: No matching text.
2. Green: One word to 24% matching text.
3. Yellow: 25-49% matching text.
4. Orange: 50-74% matching text.
5. Red: 75-100% matching text.

How to get a 0% on Turnitin?

A 0% score is more common in shorter papers (1-2 pages) and creative writing assignments where students are using their own words/voice. There are also some assignment settings that may have been enabled that will result in a lower Similarity score. You can find more information on these settings in this guide.

Can Grammarly be flagged as AI?

Yes, Grammarly can be flagged as AI, especially when using its generative features like GrammarlyGo or heavy rephrasing, because its AI-powered rewrites mimic patterns that detectors look for, though basic corrections for spelling/grammar usually don't trigger alerts. Over-reliance on Grammarly's suggestions for sentence structure and rephrasing can make text sound less natural and more like AI-generated content, increasing the risk of false positives from detection tools like Turnitin. 

What is the acceptable AI percentage on Turnitin?

An acceptable AI score on Turnitin is typically below 20%. Scores from 1% to 19% may include false positives and are considered less reliable, while a score of 0% indicates fully human-written content. Scores above 20% suggest a higher likelihood of AI-generated text and may prompt further review.

Can you check Turnitin before submitting?

Yes, you can often run your paper through Turnitin before the final submission using features like Turnitin Draft Coach, specific self-check assignments set up by your instructor, or by submitting to a designated academic integrity course, allowing you to review the similarity report and fix issues like unintentional plagiarism or citation problems before the official due date. However, it depends on your institution and instructor enabling these options, as direct self-checking isn't always available without an assignment setup. 

Why is my Turnitin score so high?

While a higher score could indicate plagiarism, poor paraphrasing or use of generative artificial intelligence (Gen-AI), assessments that include long direct quotes and lengthy reference lists can also return high similarity scores.

How do I improve my Turnitin score?

The 70/30 rule is popular with our instructors. 70% or more should be your own words while 30% is the cited research (direct quotes, summaries, and paraphrases). Avoiding data dumping will improve your Turnitin score.