After analyzing 42,000 blog posts with an AI detector, content classified as fully human-written outperformed AI-generated or mixed content across the top 10 positions.
The gap is most striking at position 1:
80.5% probability of being human-written vs just 10% AI-generated.
This may appear to conflict with survey data showing that 72% of SEOs believe AI content ranks as well as human-written content. However, the data points to a more nuanced reality.
The key difference emerges at the very top of the rankings.
From position 5 onward, the performance gap between human-written and AI-generated content narrows significantly.
In other words, AI content performs competitively when the benchmark is ranking on page one.
However, in the highest-ranking positions, human-written content clearly leads.
Full study:
social.semrush.com/4ekwL7Y.