Audience
Educators, students, writers, publishers and businesses who need to verify whether text or images are AI-generated
About GPTOne
GPTOne is a browser-based content analysis service that estimates whether text was written by an AI system and whether images appear AI-generated or edited. Its text detector checks writing associated with models such as ChatGPT, GPT-4, GPT-5, Claude, Gemini, DeepSeek and other models, and returns scores and highlighted passages. The image tool accepts common image formats and provides a confidence score, signal details and a region heatmap. Additional tools include a text humanizer, grammar checker, plagiarism checks, citation tools, a diff checker and word counter. Users can scan essays, articles, submissions, marketing copy, receipts and other images; an API is offered for product integrations. A limited free plan is available, with paid plans for larger monthly usage. Detection scores are indicators, not proof of authorship or image provenance.
