A TechCrunch article by Sarah Perez reports that Google has upgraded Search with its new Gemini 4 Hydrogen model, meant to better handle complicated, multi-part, or typo-ridden questions, with more images, comparison tables, and structured answers in AI Mode and a global rollout to all users. Google calls it its biggest model improvement to Search yet and says Hydrogen is 2.5 times faster than Gemini 3.8 Flash.