AI Plagiarism Checker: One Tool for Both Plagiarism & AI Detection
The Combo scan checks your paper for traditional plagiarism against 70+ billion sources and AI-generated text from ChatGPT, Claude, Gemini & more — simultaneously. Save 33% · Results in 15 minutes · from $0.39/page.
Plagiarism Checking and AI Detection Address Different Risks
They are not the same tool. Running only one leaves a significant gap in your pre-submission check.
Plagiarism Check
Compares your text against known sources
- Detects verbatim copying from websites
- Catches paraphrased passages
- Checks 70+ billion sources
- Finds self-plagiarism from prior papers
- Cannot detect AI-generated text
AI Detection
Analyses the statistical properties of text
- Detects ChatGPT, Claude, Gemini text
- Sentence-by-sentence scores
- No source match needed
- Works on newly generated text
- Does not identify source of copied text
Combo Plan: Both checks for $0.39/page
Save 33% vs ordering separately. One combined report.
How the AI Plagiarism Checker Works
Upload Your Paper
Submit .docx, .pdf, .txt or other formats. Files up to 50 MB. No registration required. Processed on German servers.
Dual Analysis Runs
The AI plagiarism checker runs both checks in parallel: plagiarism matching against 70+ billion sources and AI detection analysis on every sentence.
Combined Report by Email
Within 15 minutes, receive a combined PDF report covering matched plagiarism sources and per-sentence AI scores (25–75). One document, two integrity checks.
AI Models Detected in the Combo Scan
The AI component of the combo scan covers all major language models currently in use in academic settings.
ChatGPT & GPT-4
OpenAI's models are the most frequently used for academic writing assistance. Both GPT-3.5 and GPT-4 are detected at the sentence level.
Claude & Gemini
Anthropic Claude and Google Gemini are also widely used. The AI scanner covers all versions of both models.
Llama, Mistral & Others
Open-source models including Llama 2, Llama 3 and Mistral are detected. See the LLM detector for the full list.
What the AI Plagiarism Checker Report Shows
The Combo report delivers two types of findings in one document:
The plagiarism section shows all text passages that match existing sources, with percentage overlap and links to the original sources. Any text that appears to be copied, paraphrased from an uncited source, or reused from your own prior work is flagged here.
The AI detection section shows every sentence scored from 25 (human-written) to 75 (AI-generated), with high-scoring sentences highlighted for your attention.
- Plagiarism matches with source links
- Per-sentence AI scores (25–75)
- Colour-coded highlighting throughout
- Delivered by email within 15 minutes
Complete Academic Integrity Coverage — One Price
No subscription. Pay per page. Minimum order $0.90.
Plagiarism Scan
Plagiarism check only
- 70+ billion sources
- Results in 15 minutes
- PDF report with sources
- No AI detection
Combo: Plagiarism + AI
Most popular — complete integrity check
- 70+ billion source plagiarism check
- Sentence-level AI detection
- ChatGPT, Claude, Gemini & all LLMs
- Combined report in 15 minutes
AI Scan
AI detection only
- All major LLMs detected
- Score 25–75 per sentence
- Results in 15 minutes
- No plagiarism check
AI Plagiarism Checker — Frequently Asked Questions
An AI plagiarism checker combines two distinct checks: a traditional plagiarism scan (comparing text against a database of sources to find copied passages) and an AI detection scan (analysing the statistical properties of the text to identify AI-generated content). Our Combo plan runs both simultaneously and delivers a combined report.
They address different integrity risks. Plagiarism checking detects text copied from existing sources. AI detection identifies text generated by an AI model, which creates no source match in a plagiarism database. A paper could have zero plagiarism yet be entirely AI-generated, or have high plagiarism but no AI involvement. Both checks together provide complete coverage.
The Combo plan costs $0.39 per page (1,800 characters). This is 33% cheaper than ordering the two scans separately (each at $0.29/page = $0.58 combined). The minimum order is $0.90. There is no subscription — you pay only for the pages you scan.
You receive one comprehensive report covering both plagiarism findings and AI detection scores. The plagiarism section shows matched sources with percentage overlap. The AI section shows sentence-level scores from 25 (human) to 75 (AI-generated). Both are delivered to your email address within 15 minutes.
The AI detection component covers ChatGPT (GPT-3.5, GPT-4), Claude (Anthropic), Gemini (Google), Llama (Meta), Mistral and other major large language models. The detection model is updated as new AI systems are released.
Check for Both Plagiarism and AI Text — In One Scan
Upload your paper and receive a complete academic integrity report in 15 minutes. Combo plan saves 33%.
Use code plagiarism-scan10 for an additional 10% off.