Not all AI engines work the same way — and understanding their differences is essential for building an effective GEO strategy. Optimizing for one doesn't automatically help with the others.
ChatGPT (GPT-4o) relies primarily on training data, but in web-browsing mode it favors high-authority sources: Wikipedia, major media outlets, heavily-linked websites. To appear here, focus on earning citations from trusted third-party sources.
Perplexity is the most "RAG-native" engine: it actively scans the live web in real time. Structured FAQs, Schema.org-tagged pages, and fresh content are its preferred inputs. It's also the fastest to reflect new publications — making it the most actionable short-term opportunity.
Gemini integrates directly with Google Search. Your Google Business Profile, Maps presence, and LocalBusiness schema markup are therefore critical for this engine.
The RangIA-recommended strategy: work all three channels in parallel, with priority on structured markup and FAQ content — techniques that work across all three simultaneously. Learn how with our GEO services.