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AI Score
Detected Signals
Sentence-Level Breakdown
Likely AI
Uncertain
Likely Human
Frequently Asked Questions
How accurate is the KruxoAI content detector?
KruxoAI Detector analyzes perplexity, burstiness, sentence uniformity, vocabulary diversity, and structural patterns to identify AI-generated content. It performs well on clearly AI-written text but may show mixed results for heavily edited or human-revised AI content.
Can it detect ChatGPT, Gemini, and Claude-written text?
Yes. The detector is model-agnostic. It looks for linguistic signatures common across GPT-4, ChatGPT, Gemini, Claude, Llama, Mistral, and other LLMs — such as over-uniformity, lack of personal voice, and predictable sentence rhythm.
Is the tool completely free?
Account required. Register free to get 50 credits and start analyzing. You can upgrade for more credits anytime.
What is a good word count for accurate detection?
We recommend at least 100–150 words for reliable results. Shorter texts have fewer linguistic data points, which can reduce accuracy. Longer articles (500+ words) give the most reliable scores.
Can humans fail the AI detector test?
In rare cases, yes. Very formal or structured human writing (legal documents, academic abstracts) may score higher for AI likelihood. Context always matters — use the score as a guide, not a final verdict.