Check ChatGPT textwith DetectGPT

A ChatGPT detector only sees the paragraph that left the chat. It cannot tell whether the tab was open, which GPT model answered, or whether someone rewrote the reply by hand afterward. DetectGPT looks for the habits that show up when a model picks the next likely word: even sentence length, safe wording, and a rhythm that never speeds up or slows down.

That is useful when you want a second look before you submit a draft or send copy to a client. It is not a receipt from OpenAI. Human writing that is very tidy can light up, and a ChatGPT answer that someone has rewritten in their own voice can come back low. Read the highlighted lines next to the percentage, then decide what still does not sound like you.

ChatGPT often opens with a definition, walks through three balanced points, and closes by restating the question. The sentences are similar in length, the transitions are polite, and the adjectives rarely take a side. GPT-4 and GPT-5 drafts can sound smoother than older replies, but the same evenness is still what the checker is scoring.

If you pasted a chat into a doc and only changed a few words, those untouched stretches are usually the ones that mark up. A public page works the same way: Analyze URL reads the visible text, not the prompt that produced it. For a closer look at the colors, see how to read an AI writing score.

Brand-new ChatGPT prose can have almost no overlap with public pages, because the sentences were generated for that prompt and never published. An AI writing score and a similarity score are answering different questions. One asks whether the draft still sounds like a model. The other asks whether the wording already lives on the open web.

Use the checker on this page for the writing pattern. If the worry is copied sources, switch to the plagiarism checker on the homepage. Neither result is a campus originality report, and neither one proves who typed the essay.