AI Search Is No Longer One Engine: Why Agencies Need Multi-Platform GEO Now
AI search has fragmented into at least five major platforms in 2026, and agencies that optimize clients for just one are leaving visibility on the table. ChatGPT commands 900 million weekly active users, Perplexity just crossed $450 million in annual recurring revenue, Google’s Gemini is embedded inside Chrome and Android, Claude received a $40 billion investment from Google to compete at the top, and DeepSeek V4 arrived as an open-source model rivaling closed systems. Each engine cites different sources, uses different retrieval logic, and rewards different content signals. The agencies that treat generative engine optimization as a multi-platform discipline, not a ChatGPT-only checklist, will own the next wave of search marketing. ...