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GPTZero is a leading AI-text identification platform founded in January 2023 by Edward Tian and Alex Cui. The company focuses on detecting text generated by large language models, such as ChatGPT and GPT-4, to enhance information quality and transparency on the internet. Based in Princeton, New Jersey, with an additional office in New York City, GPTZero has achieved Series A funding and is reported as profitable. The company offers a range of tools and services, including a Chrome extension for real-time AI detection, an API for developers, and writing reports that assess text authenticity. Their core product, the AI Text Detector, is available for free for up to 5,000 characters, with enterprise pricing options. GPTZero primarily serves the education sector, along with publishing, hiring, legal, cybersecurity, and government industries, helping users verify content authenticity and promote responsible AI writing practices.