Free AI Content Detector — Check ChatGPT & AI Text

Our AI Content Detector uses 15 linguistic signals to determine whether text was written by a human or generated by AI models like ChatGPT, Claude, or Gemini. We analyze pseudo-perplexity (how predictable word choices are), burstiness (variation in sentence length), n-gram repetition, passive voice density, vocabulary richness, transitional phrase density, hedging patterns, and more. The result is a precise 0–100% AI probability score with a full breakdown of every signal — so you understand exactly why text was flagged. Free, unlimited, and no account required.