Google’s New Gemini 4 Hydrogen Model is Rolling Out to All Users

Google rolled out yesterday a new Gemini 4 model, Hydrogen, across its Gemini app and Google Search. Unlike its previous Gemini 4 frontier models, Argon and Carbon, which were only made available to a limited audience (Carbon is now available for Google AI Ultra subscribers), Hydrogen is Google’s new Gemini model for the masses, and the company also described it as “the biggest model upgrade to Search yet.”

“While our frontier models, Gemini 4 Carbon and Gemini 4 Argon, excel at deep, long-horizon reasoning on your hardest problems, Hydrogen is built for rapid execution across diverse agentic workflows,” Google said yesterday. “In the Gemini app, Hydrogen makes your everyday assistant even more helpful — it’s better at following your guidance, calling the right tools, and getting you to a reliable output with less back-and-forth.”

Gemini 4 Hydrogen has four thinking levels, with “high” being the default. In the Gemini app, Google says that its new model is “better at following your guidance, calling the right tools, and getting you to a reliable output with less back-and-forth.” In Google Search’s AI Mode, Hydrogen will also better understand complex questions, offer more visual responses, and display more links to relevant sources. Gemini 4 Hydrogen is also available in Google Sheets and Google Antigravity for Google AI Pro and Ultra subscribers.

For developer and enterprise workflows, Google claims that Gemini 4 Hydrogen “matches or outperforms competing models in its class” thanks to “significant leaps in both speed and intelligence.” The new model also outperforms Google’s Gemini 3.8 Flash on multimodal content safety, and it comes with strengthened safeguards for Chemical, Biological, Radiological, and Nuclear (CBRN) and cybersecurity misuse.

Gemini 4 Hydrogen is available in Google Search’s AI Mode for all users. In the Gemini app, it will be available from the model drop-down.