Google launches Gemini 4 Hydrogen, replacing Flash branding
Google has released Gemini 4 Hydrogen, a new model succeeding Gemini 3.8 Flash, dropping the 'Flash' name entirely. The company says it offers native 1-million-token input and output windows, completes tasks 2.5 times faster at default settings, and cuts fabricated claims by more than fivefold compared to its predecessor. Google cites benchmark results showing Hydrogen outperforming rival models on tests including Agent Arena, HLE-Diamond, and the Vals Tax and Legal Research benchmarks.