AI Checker is a next-generation AI originality detection tool designed to fix the high false positive rate of traditional detectors for Asian languages. Unlike simple keyword-matching tools, it accurately spots traces of content generated by cutting-edge large models like GPT-4 and Claude by deeply analyzing text perplexity and burstiness. It strictly follows a zero data retention policy, destroying all input text immediately after detection, to provide secure, reliable content risk control for creators, SEO webmasters and enterprise organizations.