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Claude Opus 4.5 & Grok 4.1 fast Series: In-Depth Review | Performance, Usage, and Comparison of the Latest AI Models from Anthropic / xAI
mitsumonoAI launched an Nov 2025 update, integrating Anthropic's Claude 4.5 and xAI's Grok 4.1 series. The article explains their expressive power, real-time speed, and business acceleration applications.