Gemini 4 Hydrogen probed 52,923 times reveals 239,266 brands in its parametric memory
dejanseo · x · 2026-11-13
Dan Petrovic of dejan.ai queried Google's new Gemini 4 Hydrogen—the default AI Mode model as of Nov 12, 2026—52,923 times with search disabled, spending 110.9M tokens to map its parametric brand memory.
Key findings:
- 239,266 brands extracted with 4.4M inter-brand links, each scored for authority overall and across 74 industries
- Apple, Microsoft and Google lead overall; Coca-Cola tops Beverages
- In Passenger Airlines, American Airlines scores 100 vs Delta's 97
- Windows ranks #11, yet the model never named it when asked for brands
Full data is public at dejan.ai/authority.
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