Blog
Notes and essays on SEO, GEO, lead generation and how to make marketing end up in the P&L.
ChatGPT Ads in Spain: Access, Cost and Measurement
How ChatGPT Ads works in Spain: access, pricing, context hints, ads, OpenAI Pixel, Conversions API and campaign measurement.
YouTube for SEO and GEO: 2026 Strategic Guide
YouTube already shapes SEO and GEO. Here is how Google and AI engines interpret, segment and cite video, and how to optimize it properly.
Self-published GEO rankings that recommend themselves
An agency scores itself 9.9 and calls itself the GEO leader; then AI repeats that self-claim as a recommendation. We analyze 384 answers and 1,456 sources.
AI Brand Recognition: Why Models Confuse Your Brand
We measured how four AI models recognize Antropus: 72 real responses that show why AI confuses brands and how to fix it.
AI Visibility in B2B: there is no universal playbook
AI does not cite every brand the same way in every model. Why there is no universal AI visibility playbook in B2B and how to allocate budget with data.
The invisible share: who AI recommends
5 AI engines, invoicing software, no brand named: 55% of the recommendation goes to brands you weren't even tracking. AI hands out graph share.
GEO Audit: the definitive guide to measuring your AI visibility
What a GEO audit is and how to measure AI visibility (ChatGPT, Gemini, Perplexity, Claude and AI Overview): methodology, metrics you can actually compute, common mistakes and the real step-by-step with Antropus.
GEO sold blind: zero serious studies in Spanish
All the published rigor on AI-engine visibility is in English; in Spanish, zero. What Akerlof says about the market for lemons and what Elevam Labs measures.
Language arbitrage: your brand is invisible to half the AI
ChatGPT, Gemini, Claude and Perplexity recommend differently by language: only 18% overlap, and publishing in English multiplies your visibility by 2.3x.