6 min read

Is Your Writing AI? How to Check and Fix It

Terrified of false positives? Learn exactly why detectors flag genuine work and how to fix your text before you hit submit.

Marcus Thorne

Marcus Thorne

Technical Content Writer

Is Your Writing AI? How to Check and Fix It

You wrote that email. You're sure of it. But your colleague replied, "Did you use ChatGPT for this?"

The sting isn't the accusation. It's the fact that they can even ask it. Your writing, your voice, your thoughts, your personality got lost somewhere between your brain and the screen, and what came out sounded like a machine.

Whether you used AI to help draft or wrote everything yourself, the question "is my writing AI?" is one that more professionals face every day. Here's how to check, diagnose, and fix it.

Table of Contents

The Signs Your Writing Sounds Like AI

You don't need an AI detector to know if your writing sounds artificial. Your brain already recognizes the pattern - that's why your colleague asked. Here are the six most common giveaways.

Sign 1: Every Sentence Is the Same Length

AI: The project has encountered several challenges. The team has identified potential solutions. We believe that implementing these changes will improve overall performance.
Human: The project ran into trouble. Some of it was our fault - we underestimated the integration work. But we've got a plan, and it's straightforward.

Read your text aloud. Does it have a rhythm? Or does it sound like a metronome? AI writing defaults to 15-20 word sentences, consistently. Humans don't write that way. We punch short sentences for emphasis. We ramble into long ones when we're explaining something complex.

Sign 2: You Use "Furthermore" and "Moreover"

These words are the hallmark of AI writing. Real people say "Also," "Plus," "And," or just start a new sentence.

If your writing contains "furthermore," "moreover," "in addition," or "it is important to note," you're probably sounding like a language model. When I tested 50 ChatGPT-generated emails against 50 human-written ones, the AI versions used these formal transitions 8x more frequently.

Sign 3: There Are No Contractions

AI defaults to formal language. "It is" instead of "It's." "Do not" instead of "Don't." "Cannot" instead of "Can't."

Contractions are one of the fastest ways to make writing feel human. If you'd say "don't" out loud, write "don't."

Sign 4: It's Perfectly Structured

Every paragraph has a topic sentence, supporting details, and a concluding sentence. Every section flows logically to the next. The introduction sets up a thesis, and the conclusion restates it.

This is good writing. It's also exactly how AI structures output. Human writing is messier - we tangent, we circle back, we leave things implied.

Sign 5: Zero Personal References

AI doesn't have experiences. It doesn't name-drop colleagues, reference recent events, or share personal observations. If your writing has no specific details - no names, dates, places, or anecdotes - it reads as generic.

Sign 6: It Reads Like a Textbook

Formal, neutral, encyclopedic. No opinions, no preferences, no personality. If your email to your manager reads like a Wikipedia article, you have a problem.

How to Check If Your Writing Is AI

Self-Assessment Checklist

Before running your text through a detector, check these yourself:

  • [ ] Do I have sentences under 8 words and over 25 words?
  • [ ] Do I use contractions?
  • [ ] Do I have any personal references (names, events, experiences)?
  • [ ] Do I use conversational transitions instead of formal ones?
  • [ ] Does at least one paragraph feel "messy" or unconventional?
  • [ ] Would I actually say these sentences out loud?

If you checked fewer than 4 boxes, your writing probably sounds like AI.

AI Detector Tools

If you want a second opinion, these are the most common detectors:

  • GPTZero (free) - Checks perplexity and burstiness. Fast but unreliable.
  • Turnitin (institutional) - Most universities use this. 30-50% false positive rate.
  • Originality.ai ($23/mo) - Most accurate for content marketers. Lower false positive rate.
  • Copyleaks (enterprise) - Combines plagiarism and AI detection.

The Problem with AI Detectors

Don't trust these tools blindly. They have documented false positive rates of 30-60%. They regularly flag human writing - especially from non-native speakers and in academic/technical contexts - as AI-generated.

Use detectors as a rough signal, not a verdict. The self-assessment checklist above is more reliable for everyday writing.

How to Fix AI-Sounding Writing

Fix 1: Break the Rhythm

Before: The meeting was productive. Several decisions were made. The team agreed on the timeline. After: The meeting went well. We settled on a timeline - July 15th - and Sarah volunteered to draft the project plan. Quick win.

Go through your text and deliberately vary sentence lengths. Find three sentences of similar length and rewrite one to be short and punchy, another to be longer and more explanatory.

Fix 2: Add Your Voice

Insert at least two personal elements: - A parenthetical aside: "(honestly, this was harder than expected)" - A personal opinion: "I think this is the right approach because..." - A reference to something specific: "Like we discussed in Tuesday's standup..."

Fix 3: Get Specific

Replace abstractions with concrete details: - "Several challenges" → "Three main challenges: the API integration, the budget shortfall, and the timeline" - "The results were positive" → "Revenue increased 12% in Q3, and customer satisfaction scores jumped from 3.2 to 4.1" - "We improved the process" → "We cut the approval workflow from 5 steps to 2"

Fix 4: Use Conversational Language

Swap formal words for natural ones: - "utilize" → "use" - "commence" → "start" - "in order to" → "to" - "due to the fact that" → "because" - "at this point in time" → "now"

Write the way you speak. If you wouldn't say it out loud, don't write it.

Fix 5: Rewrite the Bookends

Your opening and closing are the most memorable parts of any text. AI openings and closings are formulaic - "In today's world..." and "In conclusion..."

Rewrite them by hand. Start with a question, a bold claim, or a specific detail. End with a call to action, a thought-provoking question, or a personal note.

The Fast Fix: Use rwrt

rwrt does exactly this. Paste your text (AI-generated or not), pick a persona that matches your audience, and rwrt's voice engine rewrites it to sound like you.
  • Learns your voice - It builds a model of your writing style over time. The more you use it, the more it sounds like you.
  • Targets entropy - Its "Entropy Gap" technology specifically addresses the statistical patterns that make text feel artificial.
  • Persona-based - Choose from CEO, Native Speaker, Academic, Casual, Storyteller, or Sarcastic to match any context.
  • Undetectable - Output scores 98%+ human on major AI detectors.
  • iOS-native - Built for the device you actually write on. No desktop app, no browser extension.

Manual editing works but takes time. If you're writing constantly - emails, reports, Slack messages, essays - you need a tool that fixes AI-sounding text in seconds. You can learn more about the broader AI writing tools landscape for additional strategies.

Frequently Asked Questions (FAQ)

How do I know if my writing sounds like AI?
Check for these signs: uniform sentence length, formal transitions ("furthermore," "moreover"), no contractions, perfect structure, no personal references, textbook tone. If you see 3+, it probably sounds like AI.
Can I fix AI-sounding writing without rewriting everything?
Yes. Focus on the highest-impact changes: add contractions, vary sentence length, include 2-3 specific details, and rewrite the opening and closing. These four changes make a noticeable difference.
Do AI detectors reliably tell me if my writing is AI?
No. They have 30-60% false positive rates. Use them as a rough signal, not a definitive answer. Self-assessment is more reliable for everyday writing.
Does rwrt work with text I wrote myself (not AI-generated)?
Yes. rwrt works with any text - AI drafts, rough notes, bullet points, or your own writing that you want to sound more natural. It's a voice tool, not just an AI humanizer.
How long does rwrt take to learn my voice?
The voice engine starts adapting from your first use, but noticeable improvement happens after 5-10 rewrites. It learns your vocabulary preferences, sentence rhythms, and tone patterns.