AIGPTZero

What it does

AIGPTZero is a free AI detector and ChatGPT AI checker for GPT API text, Claude, Gemini, essays, articles, and web copy. Paste your content and get fast AI probability results online, designed for writers, students, educators, publishers, and content teams reviewing originality.

Free GPT detector and ChatGPT AI checker for GPT API text, Claude, Gemini, essays, articles, and web copy. Get fast AI probability results online.

Check human-written, AI-generated, and mixed text from ChatGPT, GPT-5, GPT-4o, Gemini 2.5, Claude, DeepSeek, Llama, Grok, Copilot, and more. Get a reliable AI checker for essays, research papers, resumes, and web content with explainable results, fewer false positives, and SEO-ready answer coverage. The workflow combines model likelihood, sentence rhythm, repeated phrasing, file-upload review, and careful probability labels so teachers and students can evaluate AI writing responsibly. Designed for long-form essays, research papers, resumes, and editorial drafts with clear probability bands instead of vague pass or fail labels. Identify likely AI-generated, human-written, and mixed passages…from aigptzero.com

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