You can often spot AI writing by what it lacks: specific detail, a clear point of view and real sources. No sign is certain, and a detector tool can only add one more clue. This guide lists practical signs to look for, shows how to use a detector as a supporting tool, and explains the limits so you do not accuse someone unfairly.
Signs That Text May Be AI-Written
None of these proves anything alone. Look for several together.
- Generic statements. Sentences that could appear in any article on the topic, with no concrete example.
- Even, repetitive structure. Paragraphs of nearly equal length that all open and close in the same way.
- Confident claims without sources. Facts, numbers or quotes that you cannot trace.
- Odd or invented details. References, links or names that turn out not to exist.
- No personal voice. No opinion, anecdote or mistakes that sound like a real person.
- Stock phrases and tidy summaries. Openings and endings that restate the question without adding anything.
- A sudden change in style. A text that reads very differently from the person’s earlier work.
Use an AI Detector as a Second Opinion
A detector can point you to passages that read as predictable. Paste at least a few hundred words, and review the highlighted sentences yourself. Try the free Hawaa Hub AI detector or compare several tools. If they disagree, trust your own reading and further evidence over any score. Our guide to choosing an AI detector explains how to test a tool before you rely on it.
Check the Facts
Generated text can contain errors that sound convincing. Check names, dates, statistics and links. If a source cannot be found, that is a stronger sign of a problem than any score, and it matters for quality whether or not AI was involved.
Ask About the Process
The most reliable method is to talk to the writer. Ask them to explain a section, give the source of a claim, or show a draft. People who wrote their own work can usually do this easily. You can also check version history in Google Docs or Word, which shows how the document grew over time.
Why You Should Not Rely on Detection Alone
Detectors produce false positives and false negatives. Human writing that is formal, simple or written in a second language is sometimes flagged, and edited AI text is sometimes missed. Accusing someone on the strength of a number can damage trust and may be unfair. Use the steps above to gather more than one kind of evidence.
If you are the one being checked, see why AI detectors flag your writing. For work settings, read our guide on using an AI detector at work.
Frequently Asked Questions
How can I tell if someone used ChatGPT?
Look for generic wording, missing details and unsourced claims, and ask the person about their process. No sign is certain on its own.
Can AI detectors detect copy and paste?
They analyze the style of the text, not where it came from. Pasted text can be flagged if it reads like generated writing, but a plagiarism checker is better for finding copied passages. Try our plagiarism checker.
Is there a way to be sure?
Not from text alone. Combine reading, fact-checking, version history and a conversation.
Does Google penalize AI content?
Google says it focuses on helpful, original content rather than how it was produced. Quality and accuracy matter most.
Last reviewed October 2026.