Available today: Anthropic’s Claude Sonnet 5 in Microsoft 365 Copilot
Summary
Starting today, Anthropic's Claude Sonnet 5 is available in Microsoft 365 Copilot—a new frontier model rolling out in Copilot Cowork and PowerPoint, built for agentic, multi-step work across everyday work: documents, spreadsheets, and presentation tasks. Anthropic describes Sonnet 5 as a more capable agentic Sonnet model, with performance close to that of Opus 4.8, but at lower prices1 —bringing another capable option to Copilot for work that requires planning across steps, reasoning through context, and turning information into polished business artifacts. Sonnet 5 joins a growing lineup of frontier models…
Related: OpenAI: Advancing the price-performance frontier with GPT-5.6 · Google: Introducing Gemini Robotics 2 · Anthropic: GPT-6 Goes Rogue? The HuggingFace Incident, Sans Hype · Meta: This AI-Powered Wheelchair Could Change How People Move · xAI: Introducing Grok 4.5: Fast, affordable intelligence
Rated low: routine. Worth knowing, not worth rearranging your day for.
Questions people ask
- Where can I read the full story?
- On Microsoft 365 Copilot Blog. The "Read this on Microsoft 365 Copilot Blog" link above opens the original in a new tab. Subvolts publishes a summary and analysis, never the full piece.
- What does this mean for Copilot?
- Starting today, Anthropic's Claude Sonnet 5 is available in Microsoft 365 Copilot—a new frontier model rolling out in Copilot Cowork…
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Page generated Sep 3, 2026. Summaries are Subvolts' own; the story belongs to Microsoft 365 Copilot Blog.