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    Free AI detector

    Free AI Detector for ChatGPT, Claude, Gemini, and AI-Written Text

    Check text for AI-writing risk with a free AI detector built for essays, articles, reports, and review workflows that need evidence, not just a label.

    Use the free AI detectorCompare detector options

    Updated 2026-05-31

    GPTZeroAI review workflow

    Detection, evidence, and responsible follow-up

    Free quick-scan entry point
    Paste text or upload documents
    ChatGPT, Claude, and Gemini coverage
    Sentence-level evidence
    Responsible next-step guidance

    Direct answers for AI search

    Short, citation-ready explanations for common AI detection and writing-integrity questions.

    What is the best way to use a free AI detector?

    Use a free AI detector as a first-pass review tool. Paste the text, inspect the passages that look AI-assisted, and compare the result with drafts, citations, writing history, and disclosure expectations before making a decision.

    Can a free AI detector check ChatGPT and Claude text?

    A free AI detector can review writing patterns associated with ChatGPT, Claude, Gemini, and mixed human-AI drafts, but it should explain uncertainty and encourage human review instead of presenting a score as final proof.

    When should free AI detector results be reviewed by a person?

    Human review is important whenever the result could affect grades, publication, hiring, compliance, or client approval. GPTZeroAI is designed to support that review with evidence and context.

    Free detection should still be explainable

    A free AI detector is most useful when it shows why a passage was flagged. GPTZeroAI pairs a quick-scan entry point with document-level risk and localized evidence so reviewers can see what needs attention.

    Paste text or upload a real document

    Use GPTZeroAI to review pasted text or imported TXT, Markdown, DOCX, and PDF files. The workflow is built for essays, articles, reports, policy drafts, and other documents where context matters.

    Built for real drafts, not only sample text

    Writers and teams often review essays, reports, blog posts, applications, and edited AI-assisted drafts. GPTZeroAI helps interpret those mixed documents with caution.

    Connect the result to a responsible workflow

    After a scan, the next step may be revision, disclosure, citation review, or a documented follow-up conversation. The goal is accountable writing, not automatic accusation.

    Related GPTZeroAI pages

    AI detectorChatGPT detectorAI detector for essaysFalse-positive guidance

    FAQ

    Is GPTZeroAI a free AI detector?

    GPTZeroAI provides a free quick-scan entry point for checking text for AI-writing risk, with upgrade paths for deeper validation, longer documents, team workflows, and API usage.

    Can I paste text into GPTZeroAI?

    Yes. GPTZeroAI supports pasted text and document import workflows so reviewers can check essays, articles, reports, and policy drafts with evidence.

    Does free AI detection work for essays?

    Yes, but essay results should be interpreted with drafts, assignment rules, citation expectations, and false-positive risk in mind.

    Can free AI detectors be wrong?

    Yes. Any AI detector can produce false positives or uncertain results, especially for short, formal, translated, or heavily edited text.