# Benchmark flags GEO-optimized content in live search results

Published: 2026-08-18T03:48:03.367Z · Source: arXiv GEO (https://arxiv.org/abs/2608.16824v1)
Source date: 2026-08-17
Entities: google, gemini

A GEOFlagBench study — 3,200 pages spanning eight GEO optimizer families — trained a detector, Intervention-Paired Training on ModernBERT, that raised F1 from 0.862 to 0.944 and worst-group accuracy from 0.725 to 0.883, per a paper posted to arXiv. Applied to 10,095 live pages from Google Search and Gemini results, the researchers found generative-engine-optimized content in 8.90% of pages overall, rising to 16.36% among pages modified in 2026.

Why it matters: It's the first systematic estimate of how much live Google and Gemini content is already engineered for AI citation, giving the category a baseline as the practice spreads.

## What this answers

**How much web content is optimized for AI search engines?**

A GEOFlagBench study found generative-engine-optimized content in 8.90% of live pages from Google Search and Gemini results, rising to 16.36% among pages modified in 2026.

**Can GEO-optimized content be detected automatically?**

Researchers built a detector, Intervention-Paired Training on ModernBERT, that raised F1 from 0.862 to 0.944 and worst-group accuracy from 0.725 to 0.883 on a 3,200-page benchmark.


Canonical: https://anythingengineoptimization.com/item/2026-08-18-benchmark-flags-geo-optimized-content-in-live-search-results/
From Anything Engine Optimization (AEO Wire) — https://anythingengineoptimization.com/ · Standards: https://anythingengineoptimization.com/standards/