Why Does My Writing Sound Like AI? 8 Patterns and How to Fix Them

Your writing sounds like AI when it leans on the same habits language models over-use: sentences of the same length, a stock transition at the start of every paragraph, frequent em dashes, cautious hedging, lists of exactly three, and general claims with no specific detail. You do not need to have used ChatGPT for this to happen. Models learned these habits from human writing, and many of us were taught them at school.

The good news is that each pattern is easy to spot and quick to fix once you know what to look for. Here are eight, starting with the four that matter most.

1. Every sentence is the same length

This is the biggest one. Language models tend to produce sentences in a narrow band, often between 15 and 25 words, one after another. The result reads smoothly, but flat, like a metronome.

People are uneven. We write a long, winding sentence when an idea needs space, then stop. Short. Then something in the middle.

Sounds like AI:

Regular exercise has many benefits for physical health. It can help to improve cardiovascular fitness and muscle strength. It also plays an important role in maintaining a healthy weight.

Sounds like a person:

I started running to lose weight. That part barely happened. What did happen, about six weeks in, was that I stopped getting winded on the stairs to my flat.

The fix: Look at the length of each sentence in a paragraph. If they are all similar, combine two, split one, and let at least one be very short.

2. A stock transition opens every paragraph

"Furthermore." "Moreover." "Additionally." "In addition." "On the other hand." "In conclusion." These are fine words, but models reach for them constantly, often at the start of every paragraph. Readers notice the pattern long before they notice any single instance.

The fix: Delete the transition and see if the paragraph still works. It usually does, because the logic is already clear from what you wrote. If you need a link, use something plainer: "also", "but", "so", "still". Or let the first sentence of the paragraph do the linking with its content.

3. Em dashes everywhere

Em dashes are a legitimate punctuation mark with a long history. But chatbots use them at a rate few people do, often two or three in a single paragraph, for every aside and every twist. That frequency has become one of the most talked-about tells of AI text.

The fix: Count them. If there is more than one every few paragraphs, replace most of them. A comma usually works. So does a full stop and a new sentence, or a pair of brackets for a true aside.

4. Hedging that commits to nothing

Models are trained to be careful, so they hedge: "It is important to note that...", "Results may vary depending on various factors", "This can arguably be seen as...". Each hedge is defensible. Stacked together, they make the writing sound like it is avoiding having an opinion.

Sounds like AI:

The effectiveness of this approach may vary depending on a variety of factors, and it is important to consider individual circumstances.

Sounds like a person:

This works for most people. It did not work for me, because I work nights.

The fix: Delete "it is important to note that" wherever it appears. Replace "various factors" with the actual factors. Keep hedges only where you are genuinely uncertain, and say why.

These four are the habits we show on the RealWrite home page under "Why AI text gets flagged", because they come up again and again in text that detectors score as AI.

5. Everything comes in threes

"Fast, reliable and affordable." "Clarity, consistency and confidence." Lists of three sound complete, which is why they are a classic rhetorical device. Models use them so reliably that a text full of tidy triplets starts to feel generated.

The fix: Ask whether you really have three things. Often you have two, or one strong one and two fillers. Say the strong one and explain it.

6. General claims with no specifics

AI drafts are full of sentences that could appear in anyone's essay on the topic. "Social media has had a significant impact on modern communication." True, and empty.

Specific detail is the clearest marker of human writing, because it comes from somewhere: a source you read, a thing that happened to you, a number you checked.

The fix: For each paragraph, add one concrete thing: a name, a number, an example, a short scene, a quote. Our step-by-step humanizing guide shows this with before and after examples.

7. The "not just X, but Y" move

"It is not just a tool, it is a revolution." "This is not merely about cost, but about values." Models love this contrast structure because it sounds insightful. Once you notice it, you will see it everywhere in AI-written marketing copy.

The fix: Just say Y. "It saves teams about a day a week" is stronger than "It is not just a tool, it is a game-changer."

8. Paragraphs that summarise themselves

AI paragraphs often end by restating what they just said: "Overall, this shows that time management is essential for success." Then the essay ends with a conclusion that restates every paragraph again.

The fix: Cut the last sentence of any paragraph that only repeats the first. End on the most interesting point instead. For the conclusion, say what follows from your argument, not what the argument was.

One paragraph, fixed start to finish

Here is a paragraph with most of the patterns at once:

In today's digital world, social media plays a crucial role in how we communicate. Furthermore, it offers numerous benefits, including connectivity, convenience and community. However, it is important to note that it can also have negative effects on mental health. Overall, social media is a powerful tool that must be used responsibly.

Even sentence lengths, a transition on every line, a list of three, a hedge and a summary ending. Here it is after working through the fixes:

I deleted Instagram for a month last spring. I expected to miss it. Mostly I missed my cousin's baby photos, so now I text her and she sends them directly. The scrolling, it turned out, I did not miss at all.

It is shorter, it takes a position, and it has a detail no one else could have written. You will not always have a personal story to hand, especially in formal writing. But you can always swap a general claim for a specific one: a number, a named example, a quote from a source.

Vocabulary that stands out

Some individual words have become associated with AI text simply because models use them far more than people do. None is wrong. But if several appear in one short piece, readers notice:

• delve, tapestry, testament, realm, landscape
• navigate (used for anything difficult), leverage, utilize, foster
• seamless, robust, pivotal, crucial, multifaceted
• "in today's fast-paced world", "plays a vital role", "a myriad of"

Swap them for plain words. "Use" for "utilize". "Important" or nothing at all for "crucial". "Look at" for "delve into".

Why human writers pick up these habits

If you have never used AI and still get told your writing sounds like it, you are not imagining things. Several common sources teach exactly these patterns:

• School essay templates. Topic sentence, three supporting points, transition word, summary sentence.
• Writing in a second language. Safe, common vocabulary and regular sentence shapes. This is also why non-native writers are flagged by detectors more often; see AI detector false positives.
• Corporate style. Reports and emails reward caution and hedging.
• Heavy use of rewrite suggestions in grammar tools, which tend to smooth out quirks.

None of these is a flaw in you. They are habits, and habits can be edited.

A five-minute self-check

Take a page of your writing and:

1. Highlight the longest and shortest sentence in each paragraph. Is there a real gap?
2. Circle every transition word at the start of a paragraph. Can half of them go?
3. Count em dashes. More than one or two per page?
4. Underline every hedge. Is each one actually needed?
5. Find one sentence per paragraph that could appear in anyone's essay. Make it specific.

If you want a second opinion, run the page through a detector before and after. You can try RealWrite free to see which sentences read as AI, and the how it works page shows how the Humanizer can help with the first rewrite. The specific details, though, still have to come from you.