Detect AI Content in Essays, Theses & Research Papers
Review AI-typical phrasing in an essay, thesis, or research paper with sentence-level analysis. The report does not identify the model used or prove AI authorship. Results in about 15 minutes, from $0.29/page.
This multifaceted approach enables a comprehensive understanding of the topic.
Illustrative example, not an actual report. A score is not the probability that AI wrote a passage.
What Types of AI Content Appear in Academic Papers?
AI content in academic submissions takes several forms, ranging from fully generated sections to AI-drafted paragraphs that were lightly edited. Knowing how to detect AI content in each form is the first step to ensuring your submission is fully original.
Fully AI-Generated Sections
AI may be used to draft introductions, literature reviews, conclusions, or discussions. Detector scores can vary; even a fully generated section may not score high.
AI-Drafted, Human-Edited Text
The detector can miss AI-generated text and flag human writing. Model choice, prompts, editing, and subject-specific language can affect the scores. Review passages in context and follow your institution's AI policy.
Interspersed AI Sentences
A report can show AI-typical phrasing in individual sentences. These patterns can also occur in human writing, so review the surrounding passage.
How AI Content Detection Works for Academic Papers
Upload Your Academic Paper
Submit PDF, DOCX, DOC, or TXT, up to 50 MB. Use a text-based document with selectable text.
Sentence-by-Sentence AI Analysis
PlagAware evaluates the frequency and relevance of stereotypical AI expressions in each sentence. The result measures AI-typical phrasing, not who wrote the text. The detector assesses AI-typical phrasing rather than identifying a particular model. Detection is not guaranteed for every model, version, or edited passage. PCO has not published model-specific validation for this service.
Sentence-Level Report Delivered
Your PDF usually arrives in about 15 minutes. It shows sentence-level AI typicality from 0 to 100, with 50 neutral. Highlights identify language patterns, not verified AI authorship.
Which AI Tools Are Detected in Academic Papers?
The detector assesses AI-typical phrasing rather than identifying a particular model. Detection is not guaranteed for every model, version, or edited passage. PCO has not published model-specific validation for this service.
- ChatGPT (GPT-3.5, GPT-4, GPT-4o): examples of model versions
- Claude (Anthropic): an AI assistant for drafting
- Google Gemini: research assistance and essay drafting
- Llama, Mistral: open-source models in writing tools
- Detection is not guaranteed for every model or version
Illustrative AI typicality by section, not a real scan or a percentage of AI-written content. Review each section in context.
The AI Content Detection Score: 0 to 100
AI typicality measures language patterns, not the proportion of AI-written text. PlagAware measures AI typicality from 0 to 100 for each sentence, with 50 neutral. Lower values indicate less AI-typical phrasing; higher values indicate more AI-typical phrasing. The score is not an authorship probability or proof of AI use.
Below 50: Less AI-typical
Below 50 indicates less AI-typical phrasing. It does not prove human authorship or provide a target score for submission.
50: Neutral
50 is the neutral value. Phrasing is equally typical of natural and AI-generated text; it does not measure how much AI was used.
Above 50: More AI-typical
Above 50 indicates more AI-typical phrasing. Review it in context; human writing can also score high.
Detect AI Content in Your Academic Paper
Pay per page. No subscription. Minimum order $0.90.
Plagiarism Scan
Source plagiarism check only
- About 70 billion public sources
- Results in 15 minutes
- PDF report with source links
- PlagAware powered
Combo: Plagiarism + AI
Complete academic integrity check
- Full plagiarism check
- AI content detection
- AI-typical phrasing analysis
- Best value per page
AI Scan
AI content detection only
- AI-typical phrasing analysis
- Score 0 to 100 per sentence
- Results in 15 minutes
- PDF report by email
Detect AI Content: Frequently Asked Questions
PlagAware evaluates the frequency and relevance of stereotypical AI expressions in each sentence. The result measures AI-typical phrasing, not who wrote the text. The detector can miss AI-generated text and flag human writing. Model choice, prompts, editing, and subject-specific language can affect the scores. Review passages in context and follow your institution's AI policy.
Sentence-level scoring helps you inspect patterns within chapters, but document length does not guarantee detection accuracy. Treat the report as a pre-check, not proof of AI authorship.
Sentence-level scores let you inspect phrasing in an abstract, introduction, conclusion, or other section. They do not prove that those sections were written by AI.
Upload PDF, DOCX, DOC, or TXT, up to 50 MB, with readable text. Do not assume references, footnotes, or bibliographies are automatically excluded from analysis.
PlagAware evaluates the frequency and relevance of stereotypical AI expressions in each sentence. The result measures AI-typical phrasing, not who wrote the text. Grammar, sentence rhythm, and isolated phrases do not prove authorship.
Check Your Essay or Thesis Before Submission
From short essays to doctoral dissertations: upload your paper and get a sentence-level AI content report in 15 minutes.