AI Checker
Free AI text checker for AI-written contentCheck whether text was written by AI
Highlights
What you can do with it
- Teachers reviewing whether student work looks AI written
- Editors checking submissions before publication
- Writers reviewing their own drafts for repetition
How to use it
- 1 Open the AI Checker site.
- 2 Paste up to 1000 words of text into the input box.
- 3 Run the check and wait for the result.
- 4 Read the report, including repetition and style notes.
- 5 Revise the text if the result concerns you.
Who it is for
Pros
- Free to use with no payment step
- Simple paste and check flow
- Covers several AI models
- Adds repetition and style analysis on top
Limitations
- The stated accuracy cannot be independently verified
- A 1000 word limit per check
- Results can be wrong in both directions
- Should not be used as the only evidence in a decision
What AI Checker is
AI Checker is a free online tool that checks whether a piece of text was generated by artificial intelligence. It is built on natural language processing and claims to spot content from ChatGPT, GPT-3, Google Bard, Anthropic's Claude, and others. You paste up to 1000 words and it returns a result, along with flags for repeated words, phrases, and sentences and an analysis of writing style and sentence structure. The site states a 99% accuracy figure for the check, which is worth reading carefully, since accuracy claims of that kind are hard to verify independently.
What you can do with it
- Check whether a passage looks AI generated.
- Find repeated words, phrases, and sentences in a draft.
- Review writing style and sentence structure.
- Get a second read before you publish or submit.
Who it is for
- Teachers reviewing whether student work looks AI written.
- Editors screening incoming submissions.
- Content reviewers checking originality.
- Writers checking their own drafts for repetition.
What to watch out for
The stated accuracy cannot be independently verified, and detection of this kind is known to produce both false positives and false negatives: human writing can look machine generated, and machine writing can look human. That means a result here should never be the only evidence behind an accusation, a grade, or a rejection. There is also a 1000 word limit per check, so longer documents need splitting, which changes the context the tool sees. Treat the output as one input into a conversation rather than a verdict, and remember that availability and pricing for free online tools can change without notice.
FAQ
Is AI Checker free?
Yes, it is described as a free tool for checking AI generated text.
How many words can I check?
Up to 1000 words per check.
Which AI models does it cover?
ChatGPT, GPT-3, Google Bard, Anthropic's Claude, and others are listed.
How accurate is it?
The site states 99% accuracy, but that figure cannot be independently verified.
Why it is free
What the official page says： 免费
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.
