Verified65% confidenceTradeoffExact time
Mainstream AI detection tools assess whether text is AI-generated by measuring perplexity and burstiness, and as models like GPT-4 produce increasingly natural and fluent content, the discriminative power of the perplexity metric has dropped sharply.
3
Sources
65%
Confidence
Long-term
Relevance
7/17/2026
First Seen
Sources
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