You’re reading something, and something feels off, like the words are technically correct, the grammar is clean, but there’s a flatness to it. You can’t put your finger on it, but your gut is telling you a human didn’t write this. Is it time to use an AI detector? You don’t have to.
There are patterns baked into AI-generated text that show up consistently enough to spot with your own eyes. Here are the signs worth knowing.
Lacks Specifics
AI loves comfortable generalities. It will tell you that a strategy “works well for many businesses” or that a concept “has been studied extensively” without naming which businesses, which studies, or what the actual numbers were.
Human writers, especially good ones, include specifics: a date, a name, a statistic with a source attached. AI skips that step and leans on vague confirmation instead.
Example:
“Many companies have seen significant improvements in productivity after implementing this approach. Research suggests that the benefits are substantial, and experts agree that it can make a meaningful difference.”
Notice there’s no company name, no research citation, no expert quoted, and no actual number. On the surface, it looks informed, but there really is very little information there.
No Sensory Details
AI can describe a scene, but it usually sticks to what can be logically inferred rather than what can be felt, smelled, heard, or tasted. For instance, a human writing about a farmer’s market might mention the smell of warm bread or the sound of someone haggling over tomatoes. AI, on the other hand? It will tell you the market was “lively and full of fresh produce.”
Example:
“The kitchen was warm and inviting. The family gathered around the table for dinner, enjoying the meal together. The atmosphere was pleasant and comfortable.”
Technically, nothing is wrong here, but there’s no smell of garlic, no clatter of silverware, no one talking too loudly. It reads like a setting described from the outside.
Overabundance of Em Dashes
This one is surprisingly consistent and very annoying. AI has developed a habit of using em dashes constantly, often where a comma or a period would do just fine, to connect thoughts that could stand on their own.
Example:
“The report — which was completed last quarter — highlighted several key issues — most of them related to budget — that the team — despite its best efforts — had not been able to resolve.”
Humans don’t write or talk like that.
Constant Negative Parallelism
Artificial intelligence often relies on a specific sentence structure where it tells you what something is not before telling you what it is. This creates a repetitive rhythm that feels very formal and predictable. If you see multiple sentences that follow a “It is not [X], but rather [Y]” pattern, you are likely looking at machine output.
Example:
“This approach isn’t just about saving time. It’s about working smarter. It’s not only a matter of efficiency — it’s a matter of mindset. The goal isn’t simply to do less; it’s to achieve more with what you have.”
Four variations of the same negative-then-positive structure in four sentences. That’s a pattern, not a style.
Long and Winding Sentences
AI likes to pack too much into a single sentence and connects clauses with commas and conjunctions until the sentence becomes a small paragraph all by itself.
Example:
“When considering the implementation of a new system, it is important to take into account not only the immediate costs, which can often be significant, but also the long-term benefits, which may include improved efficiency, reduced workload for team members, and better overall outcomes, all of which should be weighed carefully before making a final decision.”
That sentence has at least four ideas in it. A human writer would have broken it up.
Blogging Clichés
AI frequently uses tired phrases that real writers try to avoid. You will see words like “tapestry,” “testament,” or “unlocked” used in ways that feel like a generic corporate brochure.
Example:
“In the rapidly evolving world of technology, staying ahead of the curve is a testament to your dedication to excellence and will help you unlock your full potential.”
Overgeneralization
AI avoids taking a controversial stance or admitting that a situation is messy and complicated. This results in a “summary” style of writing that feels like a Wikipedia entry rather than a personal opinion or a nuanced argument.
Example:
“Education is the foundation of a successful society. Throughout history, people have used knowledge to advance their lives and create better opportunities for future generations.”
Presence of ‘AI Vocabulary Words and Phrases’
You will frequently encounter terms like “delve,” “pivotal,” “comprehensive,” and “multifaceted.” While humans use these words too, AI uses them with a frequency that feels unnatural.
Example:
“To provide a comprehensive overview of this multifaceted issue, we must delve into the pivotal moments that shaped the current industry standards.”
Boldface of Keywords
Many AI tools are programmed to format text for search engine optimization by default. This often results in bolding specific terms or phrases throughout the body of the text. If every important noun or key concept is bolded without a clear editorial reason, the text was probably generated to satisfy an algorithm.
Example:
“Using organic gardening techniques is the best way to ensure your vegetable patch produces healthy produce without the use of harmful chemicals.”
Curly Quotation Marks
AI often defaults to using “smart” or curly quotes even in plain text pieces where straight quotes would be the norm. This is a subtle technical detail, but if you find a consistent pattern of perfectly formatted typographers’ quotes in a casual setting, chances are it’s AI.
Example:
The professor stated, “True learning begins when you question the world around you,” which inspired the class to look deeper.
Unexpected Writing Style Shift
A machine might start an article with a very formal tone and then suddenly use a slang term that feels out of place. This happens most often when a user asks the AI to be “funny” or “edgy” while discussing a serious topic.
Example:
“The geopolitical situation remains quite precarious and requires careful diplomatic intervention. However, the whole thing is honestly a major fail for everyone involved.”
Excessive Use of Elegant Variation
Human writers usually stick to a name or a simple pronoun once a subject is established. AI tries too hard to avoid repetition and ends up using complex synonyms that sound forced. Instead of just saying “the dog,” it might call the animal “the loyal canine companion” or “the four-legged friend” three times in a single page.
Example:
The scientist looked through the microscope. This dedicated researcher spent hours observing the cells. After a while, the expert academic noted a change in the sample.
Monotonous Structure
One of the easiest ways to spot a bot is to look at the length of the sentences. Humans naturally vary their rhythm. We use short sentences for impact, medium ones to explain, and long ones to describe.
On the other hand, AI often produces a “gray wall” of text where every sentence is roughly the same length and starts with the same type of word. If you count the words in five consecutive sentences and they are all between fifteen and twenty words, your suspicion should rise.
Similar Starting Words
AI loves to start sentences with transitional words like “Furthermore,” “Moreover,” or “Additionally.” A human writer might start with a preposition, a verb, or a name to keep the reader engaged.
Example:
The project requires a lot of time. The team needs to work hard. The deadline is very close now. The boss wants a full report. The results are very important.
(Bonus) Free AI Checker
Need a faster way to check if a text was written by AI. Use our prompt in ChatGPT or other AI tools:
You are an expert writing analyst.
Analyze the text below and determine whether it was likely written by AI or a human.
Use the following signals:
1. Lack of specific details (no names, numbers, and sources)
2. Absence of sensory or vivid descriptions
3. Overuse of em dashes
4. Repetitive "not this, but that" sentence structure
5. Overly long, complex sentences with too many clauses
6. Use of clichés or generic phrases
7. Overgeneralized, safe, non-opionated statements
8. Frequent use of formal "AI-style" words like delve and pivotal
9. Unnatural formatting (e.g., random bolding, and perfect curly quotes)
10. Inconsistent tone or sudden style shifts
12. Forced variation (awkards synonyms)
Output
- In a table, have columns for the original text, why it is flagged, and a quick explanation
Text to anaylze: [insert text here]
Final Thoughts
And there you have it! If you learn to identify these patterns, it will be easier to spot if something was written by AI – and yes, without using detectors or checkers. Learn how to un-ai your text to see the difference between a bot and a human-written text.