StackMatch / Compare / Microsoft Copilot (M365) vs Dust
Honest Tool Comparison

Microsoft Copilot (M365) vs Dust

An honest, context-aware comparison. No affiliate links. No paid placements. Just the data that helps you decide.

Microsoft Copilot (M365)

professional
Generative AI & Automation

AI assistant integrated across Microsoft 365 apps

$30/user/month (requires M365 E3/E5)

Dust

professional
Generative AI & Automation

Enterprise AI agent platform — build custom agents wired to your company's tools, deployed across the team.

Pro $29/user/mo; Business $39/user/mo; Enterprise custom (SSO, audit logs).

StackMatch Editorial verdicts

Bylined · No vendor influence
Microsoft Copilot (M365)CAUTIOUS-BUY
The default if you're already paying Microsoft

Microsoft 365 Copilot is bundled into existing E3/E5 contracts, integrates everywhere, and reaches millions of users without a separate procurement cycle. The capability is competent but rarely best-in-class.

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DustCAUTIOUS-BUY
The European answer to enterprise AI agents

Dust gives mid-market and enterprise teams a platform to build custom AI agents wired to their existing tools (Notion, Slack, Drive, Salesforce, GitHub). Strong in Europe; faces hard competition from Glean, Microsoft Copilot, and Gemini for Workspace elsewhere.

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Side-by-Side Comparison

Objective metrics, no spin.

N/A
Rating
N/A
professional
Pricing tier
professional
easy✓ Better
Learning curve
medium
1 day
Setup time
1-2 weeks
5 listed
Integrations
✓ Better6 listed
small, medium, large, enterprise
Best company size
medium, large, enterprise
Top Features
Content generation in Word
Data analysis in Excel
Presentation creation in PowerPoint
Email drafting in Outlook
Features
Top Features
Visual agent builder (no code required)
Pre-built connectors to enterprise SaaS
Multi-model: OpenAI, Anthropic, Mistral, open source
Permission-aware retrieval
Choose Microsoft Copilot (M365) if...

For organizations already using Microsoft 365 wanting AI assistance in daily workflows. Best value for existing M365 users.

Avoid Microsoft Copilot (M365) if...

If you don't use Microsoft 365 or need specialized accounting/tax AI (use domain-specific tools).

Choose Dust if...

European enterprises wanting Glean-style work assistance with more agent customization; product teams shipping internal AI agents to business users.

Avoid Dust if...

M365 shops (Copilot is bundled), or teams needing the deepest possible search index (Glean still wins on raw retrieval scope).

Both suited for: medium, large, enterprise companies

Since both tools target medium and large and enterprise companies, your decision should hinge on the specific use case above rather than company fit. Try the AI Advisor to get a recommendation tailored to your exact stack.

Still not sure? Describe your situation.

The AI advisor knows both tools and your full stack. Tell it your company size, current tools, and what's not working — it'll tell you which one actually fits.

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Other Generative AI & Automation Tools to Consider

If neither is the right fit, these are the next best alternatives in the same category.

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Claude Pro / Enterprise

professional

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UiPath

enterprise

Leading RPA platform for automating repetitive accounting and audit tasks

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