Key Highlights
- Microsoft introduced Copilot Cowork, leveraging Anthropic’s Claude Cowork framework, designed for Microsoft 365 business clients
- The AI agent performs functions including presentation creation, Excel data management, and meeting coordination with minimal user oversight
- MSFT stock has declined 15% this year and experienced an almost 9% drop in February after Anthropic’s Claude Cowork debut
- Microsoft now incorporates Claude Sonnet technology into M365 Copilot, decreasing exclusive dependency on OpenAI’s GPT architecture
- Subscription-based Microsoft 365 Copilot users increased 160% compared to the previous year in the latest financial quarter
On Monday, Microsoft unveiled Copilot Cowork, an advanced AI agent solution developed through a partnership with Anthropic. This release integrates Claude Cowork’s self-operating features directly into Microsoft’s 365 platform.
The solution handles tasks such as creating presentations, filling spreadsheets in Excel, and coordinating meetings via email — requiring only limited human oversight. The technology is presently undergoing evaluation and will become available to select enterprise customers with early access privileges before month’s end.
Microsoft emphasized its security framework when announcing the launch. While Claude Cowork functions locally on user devices, Copilot Cowork runs exclusively through cloud infrastructure.
“We work only in a cloud environment and we work only on behalf of the user. So you know exactly what information it has access to,” said Jared Spataro, who leads Microsoft’s AI-at-Work efforts.
The rollout comes at a strategic moment. When Anthropic’s Claude Cowork made its initial appearance on January 30, it triggered widespread concern across technology stocks. Companies including Salesforce (CRM), ServiceNow (NOW), Intuit (INTU), and Thomson Reuters (TRI) experienced significant declines.
Microsoft wasn’t spared from the impact. MSFT shares dropped close to 9% throughout February after the Cowork announcement. The stock currently sits 15% lower compared to early 2026 levels.
Expanding AI Model Portfolio
Monday’s reveal also signals an important transition in Microsoft’s artificial intelligence approach. The tech giant confirmed it will integrate Anthropic’s Claude Sonnet technology into M365 Copilot offerings — a platform that had previously operated solely on OpenAI’s GPT framework.
OpenAI represents approximately 45% of Microsoft’s cloud infrastructure contract commitments, a dependency level that has raised investor concerns. Incorporating Anthropic’s technology provides Microsoft with greater strategic options.
Copilot Cowork pricing details remain undisclosed. Microsoft indicated that certain functionality will be accessible within its current $30-per-user monthly M365 Copilot subscription, while expanded capabilities will require separate purchasing.
Business User Growth Metrics
Microsoft’s corporate AI adoption figures demonstrate positive momentum. Paying M365 Copilot subscribers surged 160% year-over-year during the company’s latest reporting period, while daily active engagement climbed 10-fold.
Organizations implementing Copilot for over 35,000 users tripled on an annual basis. Notable recent deployments include Mercedes-Benz, NASA, Fiserv, ING, and the US Department of the Interior.
Microsoft simultaneously revealed additional agentic AI capabilities across Word, Excel, PowerPoint, and Outlook. The Microsoft Agent 365 management platform has entered general availability at $15 monthly per user.
The corporation consolidated its complete offering — encompassing Entra, Copilot 365, and Agent 365 — into a newly created Microsoft 365 E7 bundle carrying a $99 per-user monthly price tag.
Microsoft stock closed Friday’s session at $408.96, declining 0.42%, while pre-market trading Monday morning indicated an additional 1.1% decrease to approximately $404.41.
