Measuring brand share in AI answers – a Y Combinator case study

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After working in data science at Google, I built GeoVector to systematically measure how brands appear in AI-generated answers. Our approach is research-based, using position-adjusted scoring grounded in published GEO literature. The Y Combinator report is one example of the analysis we run. We ran 150 prompts across ChatGPT and Gemini, tracking 21 brands. Three things that surprised us: 1. Techstars outranks YC on ChatGPT despite YC's far stronger Google presence 2. YC's own site accounts for just 8 of 940 AI source references 3. The single most-cited source driving competitor visibility is a blog post on pitchwise.se — not any accelerator's own website Full report at the link, no signup. GeoVector runs this analysis for any brand or vertical.

Visit product View on Hacker NewsFeb 25, 2026

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nativeThis product was originally launched on this platform.

TrustMRRLess likely to generate early MRR · Strong signals: google, answers · Missing: mobile apps, ios, personal

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