GPTZero - 2026 Pricing, Features, Reviews & Alternatives

GPTZero is a cloud-based AI content detection platform that identifies whether text was written by a human or generated by AI. Designed for educators, publishers, enterprises, and writing assistants, it delivers multi-granularity classification at the document, sentence, and word level, returning trinary output labels (HUMAN_ONLY, MIXED, AI_ONLY) alongside confidence scores. The platform supports batch processing, multilingual detection, and integrates via a REST API, making it suitable for high-volume workflows across academic, publishing, and enterprise environments.

GPTZero provides a web-based dashboard for individual and team use, as well as API access for developers building detection into existing pipelines. Detection models are trained to identify output from a broad range of large language models. The platform includes a writing feedback layer that highlights AI-attributed spans at the sentence and word level, giving reviewers granular insight into mixed-authorship documents. Accuracy is validated against diverse corpora, with performance characterized as high across both AI-generated and human-written content. Enterprise plans include usage analytics, team management, and priority support, while educational tiers are structured to support institutional deployment at scale.