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Google adds Gemini 4 Hydrogen and Carbon to Search AI Mode

Fast coding and agent models now reach Search users, widening where Google's newest models run.

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This brief comes from Tech Twitter’s edited headlines. The posts below are the sources grouped with the story; statements in them belong to their authors.

Gemini 4 Hydrogen is one of our coolest model drops. • Claude Sonnet 5.5 & GPT-6.1 Terra level reasoning • super fast to work with (~2.5x faster than 3.8 Flash) • 1M context with native video & file support • dynamic multi-model orchestrator in Antigravity with Carbon
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  1. Google adds Gemini 4 Hydrogen and Carbon to Search AI Mode

  2. Google adds its new fast Gemini models to Search AI Mode

  3. Google adds Gemini 4 Hydrogen and Carbon models to Search AI Mode

  4. Google brings its Hydrogen and Carbon models into Search AI Mode

  5. Google adds its new Hydrogen and Carbon models to Search AI Mode

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