Guide: Microsoft 365 Copilot vs. Copilot Studio vs. Foundry

Which Microsoft AI Tool Does What?

Microsoft 365 Copilot vs. Copilot Studio vs. Foundry

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A Comparison Guide for Businesses

With a range of technologies available, it’s easy to get confused by which AI tool does what. Different Microsoft AI tools are best used for different things across your organisation. So, understanding the best uses of each will help you get the most out of your Microsoft investment.

Use this simple guide to compare the options, and learn how Telefónica Tech helps you bring it all to life through our AI workshops.

Let’s compare Microsoft’s various AI technologies:

Microsoft 365 Copilot
Microsoft Copilot Studio
Microsoft Foundry

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Microsoft 365 Copilot

What is Microsoft 365 Copilot?

Microsoft 365 Copilot is an AI-powered assistant chatbot, that is also built into the Microsoft 365 apps you use every day. It serves as the launchpad for AI across your organisation, fuelled by large language models (LLMs) combined with your Microsoft Graph data. It tends to be the most recognised AI tool among employees.

When should we use Microsoft 365 Copilot?

Use Microsoft 365 Copilot when:

You want chat-based help securely within your organisational boundaries that understands your work, emails, and meetings
You want to automate tasks across Outlook, Teams, and SharePoint without complex design
You want to get intelligent insights, suggestions, and templates based on your Microsoft Dynamics 365 data

Example uses of Microsoft 365 Copilot

Chat: An AI assistant to flesh out ideas, explain things, check notes, and help conduct research.
Word: Drafting and rewriting documents
Excel: Summaries, formulas, insights, charts
PowerPoint: Turning outlines into slides
Teams: Summaries and action items from meetings

Pros and Cons of Microsoft 365 Copilot

Pros

Easy to use, no code needed.
Great for daily productivity.
Business data integrated with your apps.

Cons

Needs Copilot license and admin setup
Quality depends on data governance, permissions hygiene, and user skill-level
Requires additional licensing for full enterprise features

Who should use Microsoft 365 Copilot?

Knowledge workers such as in Marketing, Finance, Sales, Operations
Executives who need quick summaries and insights
Anyone who wants to work more efficiently within Microsoft 365 apps

How does Microsoft 365 Copilot help Finance, Sales & Service teams?

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Copilot Studio

What is Copilot Studio?

Copilot Studio is Microsoft’s low‑code platform for building, customising, and publishing AI agents. It enables organisations to create tailored workflows, connectors, plugins, and specialised agents that automate business processes and carry out actions on behalf of your staff. It requires a little more skill than Microsoft 365 Copilot and supports more complex use cases.

When should we use Copilot Studio?

Use Copilot Studio when:

You need a custom AI agent beyond what Microsoft 365 Copilot provides, such as to automate HR, Sales or Operations tasks
Business processes require automations across multiple systems
You want to publish the Copilot externally

Example uses of Copilot Studio

Employee helpdesk or customer‑service bots.
Workflow automation in HR, operations, or IT.
Agents that monitor pipeline changes, trigger actions, or coordinate multi‑step workflows.

Get more inspiration on how to use Copilot Studio – take a look at our AI Use Case Library.

Pros and Cons of Copilot Studio

Pros

Friendly interface for building Copilots using natural language
Offers enterprise governance, structure, controls and branding
Integrates multiple data sources

Cons

Complex automations may require deeper Azure integration
Governance and lifecycle management still needed at scale

Who should use Copilot Studio?

Business analysts and process owners
HR, Operations, Sales and Marketing teams needing automated workflows
IT teams managing custom agents and governance

Schedule an AI & Copilot Studio Envisioning Workshop with Telefónica Tech

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Microsoft Foundry

What is Microsoft Foundry?

Microsoft Foundry is the Azure-based, enterprise grade AI development and deployment platform that unifies models, agents, data, governance, and infrastructure into a single engineering environment. It is the backbone for building and operating AI applications and agentic systems at scale.

When should we use Microsoft Foundry?

Use Microsoft Foundry when:

Building full AI applications or agent systems that require enterprise-scale reliability
You need full control over models, data, observability and security
You’re building highly customised AI apps

Example uses of Microsoft Foundry

Creating production‑grade generative and agentic AI solutions.
Multi‑model LLM apps requiring governance, auditing, and cost control.
Integrating AI deeply into enterprise workflows and data systems.

Pros and Cons of Microsoft Foundry

Pros

Enterprise-grade security through deep Azure integration
Supports a wide choice of models, including open source and enterprise
Connects to enterprise knowledge sources with optimised integrations

Cons

Requires advanced technical expertise (developers, architects, MLOps)
Cost can scale if not monitored
Can be more complex than Microsoft 365 Copilot or Copilot Studio in order to meet requirements

Who should use Microsoft Foundry?

AI engineering teams
Software developers
Cloud architects

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MICROSOFT 365 COPILOT VS. COPILOT STUDIO VS. FOUNDRY

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