Is My Writing AI-Detectable? What Tools Flag and How to Fix It

Your writing is more likely to be flagged as AI-generated when it scores above roughly 70–80% on AI probability across multiple detection tools. But the score alone does not tell you what to fix. Understanding which specific properties trigger a high score — and which passages in your text are responsible — is how you actually solve the problem.

This guide gives you a practical self-audit process.

Step 1: Get Your Baseline Score#

Before editing anything, run your text through Naturalistic AI's AI Detector. Note:

• Overall score: What percentage AI probability?
• Per-sentence highlighting: Which specific sentences score highest?
• Word count: Detectors are less reliable on texts under 150 words

If your score is under 40%, you probably do not need to do anything. If it is 60%+, continue to Step 2.

Step 2: Identify the Trigger Category#

High AI scores almost always come from one or more of four categories:

Category A: Vocabulary Triggers#

Your text uses phrases that appear at abnormally high rates in AI corpora. Check for:

• "delve into" / "delve deeper"
• "it is important to note"
• "in today's world / landscape"
• "leverage" as a verb
• "crucial," "paramount," "vital," "essential" (more than once)
• "utilize" instead of "use"
• "fascinating," "robust," "seamlessly" (Gemini signatures)
• "nuanced approach / understanding"
• "not only X but also Y"

If you found 3+: Your vocabulary entropy is low. Go to Fix A.

Category B: Sentence Uniformity#

Count the words in your last five sentences. If the range is less than 8 words (e.g., 18, 20, 19, 22, 17), your burstiness score is flat.

If sentence lengths vary by less than 8 words: Go to Fix B.

Category C: Structural Patterns#

Does every paragraph end with a summary sentence? Is every argument presented as exactly three points? Do you open with a rhetorical question?

If yes to any: Go to Fix C.

Category D: Generality#

Your text makes claims without specific details. "Many students struggle with this" rather than "Around 60% of undergraduates say X." Vague generalities raise the AI probability score because AI models produce them constantly.

If your text has few numbers, names, or concrete details: Go to Fix D.

Step 3: Apply the Right Fix#

Fix A: Vocabulary Entropy#

Find each flagged phrase and replace it:

• "delve into" → "examine" or restructure the sentence
• "it is important to note" → delete, just say the thing
• "leverage (verb)" → "use"
• "utilize" → "use"
• "crucial/paramount" → delete or keep only one instance
• "in today's world" → delete the entire clause, start with your actual claim

Fix B: Sentence Burstiness#

After every two or three normal-length sentences, add one that is short. Under ten words.

Like this.

Then follow it with a longer sentence that develops the thought in more detail, adds a qualification, or introduces an example that makes the previous claim concrete.

Fragments help too.

Fix C: Structural Patterns#

• Remove paragraph-ending summary sentences ("Ultimately, this shows that...")
• Change one of your three-part arguments to two parts or four
• Replace rhetorical question openers with direct claims
• Remove action-prompt transitions ("So what does this mean for you?")

Fix D: Specificity#

Replace every vague claim with a specific one:

The Fast Path: Humanizer Tool#

If you want to fix all four categories at once without editing manually, paste your text into Naturalistic AI's AI Humanizer.

The tool:

1. Identifies high-AI-probability passages
2. Rewrites them to raise perplexity, burstiness, and entropy
3. Preserves your content and meaning
4. Lets you select tone (Academic, Formal, Fluency, Creative, etc.)

After humanizing, run the detector again to compare the revised draft and see what improved.

What to Do If Your Score Is Still High#

Some texts are hard to humanize because the domain itself is inherently predictable — legal writing, technical documentation, formal academic prose. In these cases:

1. Use multiple detectors. A text can score very differently across tools, so compare patterns instead of relying on a single score.
2. Focus on the highest-flagged sentences. Moving 20% of sentences from high-AI to low-AI probability drops the overall score significantly.
3. Add a human-written introduction and conclusion. Detectors score the whole document; strong human-written framing dilutes AI signals.

Check your writing with the free AI Detector →