Automated tools produce refined prose with recognizable linguistic regularity.
Higher signal76%
Paraphrase Shield
Detect AI-Generated Text Even After It's Been Paraphrased
Rewriting can change vocabulary and sentence order. Paraphrase Shield looks for AI-like patterns that can remain after text is processed through paraphrasing or humanizer tools.
- Included in every plan
- Sentence-level signals
- No separate mode
01 · Generated draft
Generative systems can produce polished academic language with consistent structure and predictable transitions.
Original patternParaphrased
02 · Rewritten output
AI tools may create refined scholarly prose marked by uniform organization and expected connective phrasing.
Rewritten passageBeyond word swaps
Check rewritten passages in context.
Word choices and sentence order can change. Check the submitted version for AI-writing patterns, then inspect the highlighted passages.
Submitted sentence
AI systems generate Automated tools produce prose with predictable phrasing recognizable linguistic regularity.
- 01Surface layer
Vocabulary shifts
Words may change without changing how the passage was produced.
- 02Structural layer
Sentences are reordered
The rewritten version can preserve broader statistical and structural patterns.
- 03Report layer
Signals stay inspectable
Flagged sentences appear in the normal report for closer human review.
Inside every scan
Included in your regular scan.
Every plan includes Paraphrase Shield. See the overall estimate and flagged sentences in the same report.
See sentence-level detection →The writer then added a specific example drawn from the assigned reading.
Lower signal19%
Draft history and source use remain important context for the reviewer.
Mixed signal43%
Two different questions
Paraphrase detection is not plagiarism checking.
How does the writing read?
Paraphrase Shield evaluates AI-like patterns in the submitted language, even when wording has been rewritten.
Passage signals
Explore AI detection →Where does the wording overlap?
Plagiarism checking compares text with sources and helps reviewers inspect quotation, citation and possible copying.
Source matches
Explore plagiarism checking →Review after rewriting
Useful wherever polished writing needs context.
Paraphrase Shield helps reviewers decide where to look more closely. It does not make a misconduct decision by itself.
01
Coursework
For educators →02Teachers and faculty
Inspect essays that may have been rewritten after generation.
Policy review
For institutions →03Institutions and integrity teams
Use consistent review practices across individual cases and departments.
Editorial submissions
For publishers →Publishers and content teams
Triage polished submissions before a deeper editorial review.
Common questions
Paraphrase Shield, explained.
What it checks, how it differs from plagiarism checking and what the results mean.
Proofademic is designed to identify AI-like patterns that can remain after text is rewritten with QuillBot and similar paraphrasing tools. Results can be wrong. Compare flagged passages with sources and drafts.
QuillBot, Undetectable AI, Phrasly, StealthWriter, BypassGPT and Humbot are current examples. Coverage is not limited to a fixed list because tools and rewriting methods change.
Yes. Paraphrase Shield is included in every current Proofademic plan and is applied automatically during a scan.
No. Paraphrase Shield is integrated into the standard detector and sentence-level report.
No. AI detection evaluates AI-like writing patterns. Plagiarism checking compares wording with sources. A document can raise one type of signal, both, or neither.
No. A flag is not proof of misconduct. Check sources, drafts, earlier writing and assignment rules, and speak with the writer before reaching a conclusion.
Research and guidance
Understand rewriting, detection and responsible review.
01
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Read the article →Review beyond the first draft
Test the submitted text, not just the obvious AI output.
Start with your one-time 1,000-word allowance. Paraphrase Shield is included automatically in every plan.