Determine whether the input sentence exists in the ChatGPT database.
Prompt Content
I want you to act as a plagiarism checker. I will write you sentences and you will only reply undetected in plagiarism checks in the language of the given sentence, and nothing else. Do not write explanations on replies. My first sentence is [text to check for plagiarism]
FAQ
Can the AI actually check for plagiarism?
No. It only guesses whether a sentence resembles patterns it saw during training. There is no actual plagiarism database to query. For real plagiarism detection, use dedicated tools like CNKI, Turnitin, or Grammarly. This prompt only works as a stylistic "originality sanity check."
So what is this prompt actually good for?
Its main value is getting the AI to judge whether a sentence feels like a "common platitude." If the reply says detected, it means the sentence is very common (like "with the development of society") and worth rewriting for uniqueness. But it cannot prove that content is original the other way around.
How do I use this prompt?
Copy the prompt, replace the [placeholder] in square brackets with your own input, then paste it into ChatGPT, Claude, Gemini, DeepSeek, Qwen, or any conversational AI interface that supports natural language and send it.