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Anthropicは2026年5月28日、フラッグシップモデルの最新版 Claude Opus 4.8 を正式リリースしました。Opus 4.7(2026年4月リリース)からわずか約1ヶ月での更新となり、コーディング・推論・エージェント作業・知識系タスクにわたる全面的な改善を図ったモデルです。独立評価機関 Artificial Analysis の インテリジェンスインデックスでは、Opus 4.8が 61.4点 でGPT-5.5(xhigh)を1.2点上回り、総合1位を獲得しています。(ただし、ターミナル系コーディング(Terminal-Bench)ではGPT-5.5(78.2%)にやや劣っています。) この Claude Opus 4.8の評価、評判について、生成AIに調べ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。 Independent analysis of AI https://artificialanalysis.ai/ Claude Opus 4.8 Takes First Place on the Artificial Analysis Intelligence Index On May 28, 2026, Anthropic officially released Claude Opus 4.8, the latest version of its flagship model. Arriving just about one month after Opus 4.7 (released in April 2026), the new model delivers broad improvements across coding, reasoning, agentic workflows, and knowledge-intensive tasks. According to the Intelligence Index published by the independent evaluation organization Artificial Analysis, Opus 4.8 achieved a score of 61.4, surpassing GPT-5.5 (xhigh) by 1.2 points and claiming the top overall position. (However, in terminal-based coding benchmarks such as Terminal-Bench, GPT-5.5 still maintains a slight advantage, scoring 78.2%.) I asked a generative AI system to investigate the evaluation and reputation of Claude Opus 4.8. Please refer to the findings below. Please note that the research and analysis generated by AI are based solely on publicly available information and may not necessarily reflect the full reality of the situation. The results may also contain inaccuracies, so readers are encouraged to interpret them with appropriate caution. Your browser does not support viewing this document. Click here to download the document. Your browser does not support viewing this document. Click here to download the document. Your browser does not support viewing this document. Click here to download the document. Your browser does not support viewing this document. Click here to download the document. Your browser does not support viewing this document. Click here to download the document. Your browser does not support viewing this document. Click here to download the document. Your browser does not support viewing this document. Click here to download the document. Your browser does not support viewing this document. Click here to download the document. Your browser does not support viewing this document. Click here to download the document. Your browser does not support viewing this document. Click here to download the document. Your browser does not support viewing this document. Click here to download the document. Your browser does not support viewing this document. Click here to download the document.
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著者萬秀憲 アーカイブ
April 2026
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