AIUpdated Yesterday

Gemini 4 Hydrogen is now AI Mode’s default.

Some searches bundle several questions together, include a hard-to-understand typo, or ask for something unusually specific. Google says Hydrogen can break those questions into parts and address each one. Robby Stein, Google Search’s VP of product, says the model is now AI Mode’s default and is also being used for the hardest questions in AI Overviews. It has a different role in each feature: the default in one, and in use for the toughest questions in the other.

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