AI Detector
AI text detection toolCheck if text came from an AI
Highlights
What you can do with it
- A writer checks a draft before submitting it
- A teacher reviews a student text as one step in a broader integrity check
- An editor screens incoming guest posts for AI-written passages
How to use it
- 1 Open the AI Detector website in your browser.
- 2 Paste the text you want to check into the input box.
- 3 Run the check and wait for the analysis of style and sentence structure.
- 4 Read the result along with any flagged repetitive words or phrases.
Who it is for
Pros
- Free to use with a simple paste-and-check flow
- Explains its approach by looking at style, grammar, and repetition
- Handles up to 1,000 words in one pass
Limitations
- Stated accuracy is 95 percent, so results can be wrong in either direction
- Each check is capped at 1,000 words, so long documents need splitting
- Detector results should not be the sole basis for academic or disciplinary decisions
What AI Detector is
AI Detector is a free online tool that checks whether text was created by AI. It uses algorithms and machine learning to study writing style and sentence structure, then reports whether the content looks like it came from ChatGPT, GPT-4, Bard, Claude, or a human writer. The tool also flags repetitive words, phrases, and sentences, and compares grammar, vocabulary, and semantics against AI and human models. Use is free, with a maximum of 1,000 words per check and a stated accuracy of 95 percent. That makes it useful as a quick reference, but the accuracy figure means results are not certain, and a single check should never be the only evidence behind an important decision about a person.
What you can do with it
- Paste a text and get a read on whether it looks AI-generated.
- See which AI models the text is being compared against.
- Flag repetitive words, phrases, and sentences in the passage.
- Check up to 1,000 words in one pass before splitting longer documents.
Who it is for
- Writers who want a second opinion on their own drafts.
- Teachers and instructors reviewing submitted work as one step in a broader check.
- Editors screening guest posts and freelance contributions.
What to watch out for
The stated accuracy is 95 percent, so roughly one text in twenty can be classified incorrectly, and the direction of the error is not predictable. Each check is capped at 1,000 words, so long documents must be split into pieces, which can affect consistency. Free access and word limits can change without notice. Most importantly, do not use this result as the sole basis for academic or disciplinary action: treat it as one input, keep the original text, and follow your institution's own review process before drawing conclusions about anyone's work.
FAQ
Is AI Detector free?
Yes, it is described as free to use. Limits and availability can change.
How many words can I check at once?
The stated limit is 1,000 words per use.
How accurate is it?
The site states 95 percent accuracy, which means some texts will be classified incorrectly.
Why it is free
What the official page says： for free
Free limits, trial length and features are decided by the official site and can change at any time.
Product preview
Screenshot archived from the listing page, for preview only.
