Excel Gets a Brain Upgrade: Claude Opus 4.5 Powers Microsoft Copilot's Agent Mode!
product#agent📝 Blog|Analyzed: Feb 18, 2026 13:30•
Published: Feb 18, 2026 12:00
•1 min read
•Zenn ClaudeAnalysis
Microsoft 365 Copilot is leveling up with an innovative agent mode, enabling it to autonomously perform tasks across applications. The integration of Anthropic's Claude Opus 4.5 within this agent mode brings a superior Large Language Model (LLM) to Excel, significantly enhancing its analytical capabilities.
Key Takeaways
- •Agent mode in Excel allows for the use of Claude Opus 4.5, a Large Language Model (LLM) optimized for complex data analysis.
- •Claude Opus 4.5 excels in understanding lengthy and intricate datasets, making it ideal for Excel tasks.
- •Compared to the standard Copilot, the agent mode offers superior reasoning capabilities and generates more comprehensive, structured reports.
Reference / Citation
View Original"The point this time is that Anthropic Claude Opus 4.5 can be used as the internal model of Microsoft Copilot if you use the agent mode."