Original Research
Generative engine optimization (GEO), AI-search strategy, and field notes on how brands get cited across ChatGPT, Grok, Claude, Gemini, Perplexity, and AI Overviews.
Which AI Coding Tool Does AI Recommend? We Asked 11 Engines, 137 Prompts, 7 Tools (1,506 Answers)
Developers now ask AI which AI coding tool to use — so we measured what the AI actually says. Across 1,506 answers from 11 engines, 4 of 7 major tools lost their own home-turf prompts, Gemini cited zero sources in every single answer, and the average tool owns just 2.9% of the citations in its own category.
What Does ChatGPT Actually Cite? We Ran 20 Real Searches to Find Out
We gave ChatGPT's web search tool 20 real buying-intent prompts and logged every one of the 119 citations it produced. The result: 71.4% went to the brand's own website — not to reviewers, not to Reddit, not to YouTube. Here's the full breakdown, plus what changed on May 7, 2026 that nearly doubled ChatGPT's referral traffic overnight.