AI Text Detector
for Academic Integrity

An AI text detector is a tool that analyzes written content to determine whether it was generated by artificial intelligence (such as ChatGPT, Claude, or Gemini) or written by a human. Proofademic’s AI text detector goes further than most by scoring each sentence individually, so you can see exactly which parts of a document were flagged.

Proofademic offers a free tier with 1,000 words of AI text detection, no credit card required. Unlike Turnitin (which requires an institutional license) or GPTZero (which limits free scans), Proofademic gives educators instant sentence-level results they can use to have evidence-based conversations with students.

Yes. Proofademic detects content from all major AI models including GPT-4o, GPT-5, Claude 4, Gemini 3.0, LLaMA, Mistral, and DeepSeek. Our detection engine updates continuously as new models are released.

Most AI text detection tools struggle with paraphrased or lightly edited AI content. Proofademic uses multi-layer analysis that catches patterns beyond surface-level word choice, making it more effective at detecting AI text that has been manually revised or run through a paraphrasing tool.

AI text detection analyzes writing patterns, sentence structure, and statistical markers that distinguish human-written text from AI-generated content. Proofademic uses multi-model detection trained on outputs from ChatGPT, Claude, Gemini, and other AI tools, then scores each sentence individually so reviewers can see exactly where AI-like patterns appear.

Turnitin is primarily a plagiarism checker that added AI detection as a feature. Proofademic is purpose-built for AI text detection in academic settings, offering sentence-level analysis, lower false positive rates, and results designed for defensible review. Both serve educators, but Proofademic focuses entirely on AI detection accuracy and interpretability.

Sentence-level AI detection analyzes each sentence individually rather than giving a single score for an entire document. This matters because most real submissions are mixed: some parts human-written, some AI-assisted. Proofademic highlights exactly which sentences show AI patterns, making it easier for educators to have evidence-based conversations about originality.

The best AI text detector for teachers is one that explains its results, not just outputs a score. Proofademic gives educators sentence-level analysis so you can see exactly which parts of a student’s submission were flagged – making it easier to have evidence-based conversations about originality without relying on a single number.

Yes. Proofademic offers a free tier with 1,000 words of AI text detection, no credit card required. Students can paste a draft before submitting to see what might be flagged and revise accordingly. It’s one of the few free AI text detectors that provides sentence-level scoring rather than just an overall percentage.

Proofademic is specifically trained and calibrated for academic content, which means it’s less likely to produce false positives on formal writing, citations, or discipline-specific language. General-purpose AI text detectors tend to flag academic tone as AI-generated. Proofademic achieves 99.8% accuracy across academic content types.