Unfox AI

Unfox AI focuses on the practical question content teams actually ask: how much of this text reads like it came from a generative model, and which parts specifically. Rather than returning a single opaque percentage, the detector analyzes linguistic and structural patterns such as predictability and sentence variation, then highlights sentence-level signals so reviewers can see which passages deserve a closer look. It explicitly frames results as probability-based signals rather than proof of authorship.

Beyond detection, the platform bundles a set of adjacent utilities. An AI humanizer rewrites text to read more naturally, an image detector looks for visual artifacts, a voice detector flags synthetic audio, and a token calculator estimates model usage costs. A Chrome and Edge extension lets users check and humanize content while browsing, so the tool fits into an existing editing workflow instead of being a separate destination.

For volume work, Unfox exposes a detection and humanization API with a shared, non-expiring credit pool, real-time NDJSON streaming, and per-word overage billing. The company reports hundreds of millions of words processed and describes SOC 2 compliance and 99.9% uptime for enterprise customers. A free tier covers casual checking, with paid credit plans and custom enterprise rates above that.