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  1. Google Blog · AI82

    Google Search upgrades globally to Gemini 4 Hydrogen

    Google Search has moved all users worldwide to Gemini 4 Hydrogen, which the company calls its biggest model upgrade to Search yet. The model improves intent understanding for multi-part and typo-heavy questions, adds deeper instruction following and tool calling, and strengthens query fan-out to surface links users might not otherwise find. Responses also become more visual, with more images, comparison tables and custom tools, across all supported AI Mode languages.

    Why it matters: Google Search's largest model upgrade to date, with Gemini 4 Hydrogen now handling multi-part questions, tool calling and query fan-out for all users globally.

  1. Preferred Networks News60

    PFN releases PLaMo 3.1 Prime with Web search and Deep Research

    Preferred Networks began offering PLaMo 3.1 Prime on October 27, 2026, adding Web search and a Deep Research feature that autonomously plans, collects, analyzes and writes source-cited reports over several minutes to tens of minutes. Deep Research also runs on-premises and can connect to internal document search systems, while the company reports an average ~15% score improvement across eight hallucination-related benchmarks including AA Omniscience versus PLaMo 3.0 Prime. PFN also cites 1.7x faster processing via speculative decoding and a 90% reduction in output tokens in non-reasoning mode, and launched a free PLaMo API plan plus a PLaMo Chat campaign offering Deep Research twice daily until November 30, 2026.

    Why it matters: PFN's PLaMo 3.1 Prime adds autonomous Deep Research that runs on-premises, giving Japanese enterprises a locally deployable option for source-cited investigation work.

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