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NTT国産LLM tsuzumi 2の最新動向と知財業務への適用性

9/6/2026

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NTTが開発した純国産LLMであるtsuzumi 2は1GPUで動作する軽量性と高い日本語処理能力を両立しており、特に2026年のアップデートで強化された図表入りビジネス文書の読解機能(Vision機能)や世界初のトークン共通化技術が注目されています。
機密情報の保護を重視するオンプレミス運用に適した設計思想は、知財実務において親和性が高くなっています。
このNTT tsuzumi 2の最新動向と、その知的財産(知財)業務への適用性を、生成AIに詳細に分析させましたので、ご参照ください。なお、生成AIによる調査・分析結果は、公開された情報からだけの分析であり、必ずしも実情を示したものではないこと、誤った情報も含まれていることについてはご留意されたうえで、ご参照ください。
 
Latest Developments of NTT’s Domestic LLM “tsuzumi 2” and Its Applicability to Intellectual Property Operations
tsuzumi 2, the fully domestic large language model (LLM) developed by NTT, combines the ability to run on a single GPU with strong Japanese-language processing capabilities. Of particular interest are the enhanced Vision capabilities introduced in the 2026 updates, which enable the model to understand business documents containing charts, tables, and figures, as well as its world-first token unification technology.
Its design philosophy, which emphasizes suitability for on-premises deployment and the protection of confidential information, makes it highly compatible with intellectual property (IP) operations where security and confidentiality are critical.
I asked a generative AI system to conduct an in-depth analysis of the latest developments surrounding NTT’s tsuzumi 2 and its potential applicability to intellectual property (IP) practices. Please refer to the analysis below. Please note that the findings are based solely on publicly available information and may not necessarily reflect actual circumstances. As with any AI-generated research and analysis, the results may contain inaccuracies or errors and should therefore be reviewed with appropriate caution.
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  • 知財活動のROICへの貢献
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  • 生成AIとの「壁打ち」で、新たな発明を創出する方法