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Anthropic's New Claude Opus 4.5 AI Model Is Designed for Coding and Office Work

  • On Monday, Anthropic released Claude Opus 4.5, calling it the "best model in the world for coding, agents, and computer use", and made it available across its apps and API today.
  • Following Claude Sonnet and Claude Haiku updates, Anthropic released Opus 4.5 to improve coding, agents, and workplace documents, completing the Claude 4.5 family a week after Google's Gemini 3 debut.
  • The new agent features allow Opus agents to control computers, retain insights for autonomous improvement after four iterations, adding Excel integration with sidebar chat, seven connectors, and Claude Code on desktop research preview.
  • Anthropic is pursuing new funding from Google that could value the company at $350 billion, while Nvidia committed up to $10 billion and Microsoft pledged $5 billion, raising concerns about circular investments.
  • Opus's safety profile raises questions after tests showed Opus 4.5 scored higher on `concerning behavior` and benchmark failures, while Menlo Ventures report found Anthropic leads enterprise AI adoption with 32%.
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MacRumors broke the news in United States on Monday, November 24, 2025.
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