Which plans get the add-ins?

Excel, PowerPoint, and Word add-ins are GA on all paid plans. Outlook is in public beta and is available on the same plans.

How is this different from the November 2025 Microsoft 365 Copilot integration?

The November announcement integrated Claude models into Microsoft's surfaces — the Researcher agent in Microsoft 365 Copilot, custom agents in Copilot Studio, and Excel Agent Mode preview. This release is a separate line of Anthropic-distributed add-ins where Claude itself owns the panel inside each app.

What does each app's add-in do?

Excel builds financial models from filings and data feeds and audits formulas across linked workbooks. PowerPoint drafts decks that update automatically when underlying numbers change. Word edits memos against firm templates. Outlook triages your inbox, schedules meetings, and drafts responses in your voice.

Claude for Microsoft 365 — Excel, PowerPoint, and Word now GA, Outlook joins in beta

Q: What's the headline of this announcement?

The Excel, PowerPoint, and Word add-ins that had rolled out in staged betas are now generally available on all paid plans, and Claude for Outlook joined in public beta. Once installed, context carries automatically between apps.

Overview

On May 5, 2026, Anthropic announced GA for the Microsoft 365 add-in lineup. The side panels that had rolled out gradually since Claude for Excel’s October 2025 beta are now generally available on all paid plans, and Claude for Outlook joined as a new public beta. The release ships alongside a financial services agent package on the same day.

Key features

Excel, PowerPoint, and Word add-ins are now GA

The staged betas converge into a single GA moment — Excel started in beta on October 27, 2025 (Max/Team/Enterprise) and expanded to Pro on January 24, 2026, PowerPoint joined as a research preview on February 5, 2026, and Word entered public beta on April 10, 2026. The GA transition removes the beta enrollment step on every paid plan.
Claude for Outlook joins in public beta

Outlook is the only new entry across the four. It supports a “chief of staff” workflow — triaging the inbox, scheduling meetings, and drafting responses in the user’s voice. It ships in public beta and is available on every paid plan.
Shared context across apps

With the add-ins installed, work that starts in one app carries its context into the others. A financial model built in Excel can be lifted into a PowerPoint deck without re-explaining inputs, assumptions, or calculation flow.
Per-app capabilities

Excel is positioned for financial models built from filings and data feeds, formula audits across linked workbooks, and sensitivity analyses. PowerPoint drafts decks that update automatically when the underlying numbers change. Word edits credit memos against firm templates. Outlook triages the inbox, schedules meetings, and drafts responses.

Notes

How this differs from the November 18, 2025 release — The earlier announcement integrated Claude into Microsoft’s surfaces (the Researcher agent in Microsoft 365 Copilot, Copilot Studio for custom agents, Excel Agent Mode preview, Microsoft Foundry serverless deployment). The May release is a separate line of Anthropic-distributed add-ins where Claude owns the panel inside each app.
Shipped alongside the financial-services package — On the same day, Anthropic also released 10 financial services agent templates and a Moody’s MCP plus 17 data connectors. Combined with the add-ins, you can invoke a model builder from Excel or a pitch builder from PowerPoint inline.