Google tests fast new Gemini AI model Hydrogen

Google is internally testing a new Gemini AI model named Hydrogen, described as "very capable, fast and efficient," according to an internal message seen by Business Insider. Staff were given access to the model on Google's development platform, Jetski, which often precedes a public launch. The model is positioned as a workhorse offering similar to Google's previous Flash models, which are designed to be faster and more cost-effective than flagship models like Argon. This follows the recent launch of Gemini 4 Carbon, Google's most capable model yet, which is currently limited to paying users. It remains unclear whether Hydrogen, if released, would be a paid or free offering, though Google offers other Flash models for free in its Gemini app. The testing comes amid intensifying competition, with Anthropic announcing new models on Monday.