ArcGlass vs. Microsoft 365 Copilot

Last updated: September 27, 2026

Company data compiled from public sources; figures are approximate and may have changed since publication.

Strategic positioning

	ArcGlass	Microsoft 365 Copilot
Buyer	COO and CEO, plus CMO, VP Sales, RevOps, Customer Success	CIO and IT, usually as a company-wide Microsoft 365 license decision
Headline value	"Stay close to customers. Without sitting in every meeting."	An AI assistant for every employee, grounded in their work data (Work IQ)
Center of gravity	Every customer conversation, analyzed without anyone asking, rolled up for leaders	The individual user's flow of work in Outlook, Teams and Office apps
Primary data	Meetings, calls, email and chat across Teams, Outlook/Exchange, Zoom, Meet, Gmail, Slack, Gong and notetakers	Microsoft Graph: the user's email, calendar, meetings, chats and files, plus connectors and CRM for the Sales agent
Output	Daily briefing, account health trends, rep coaching memory, messaging and positioning analysis	Answers, recaps, drafts, documents, and custom agents
Recent direction	Leadership reads across the account book, messaging and positioning analysis, a free desktop notetaker (Listen)	Agents at scale: Work IQ, Agent 365, Researcher and Analyst, the E7 bundle

Copilot works for the person asking, inside the apps they already use, with the data they can already see. ArcGlass works for the leader who needs a standing read on every customer conversation, whether or not anyone asked. Copilot is the assistant. ArcGlass is the standing analysis.

Overlap surface

1. Meeting recap Copilot wins

If your meetings run on Teams, Copilot's recap is right where people already are.

• ArcGlass: ArcGlass reads Teams, Zoom and Meet meetings, notetaker output (Fireflies, Fathom, Granola) and its own free Listen app. Each meeting gets a bottom line, account signals, topics with sentiment and the evidence quote, the people involved (economic buyer, champion), rep moments and suggested follow-ups. It is built for analysis across meetings, not for replaying one.
• Microsoft 365 Copilot: Teams intelligent recap gives AI meeting notes, recommended tasks, speaker and name-mention markers, chapters, and video recap, with audio recap in preview. It needs Teams Premium or a Microsoft 365 Copilot license and meeting transcription turned on; recording is needed for the full experience. The Sales agent adds seller-focused recaps with action items, conversation KPIs and sales keywords.

For "what happened in that one meeting," Copilot in Teams is enough. ArcGlass earns its place when you want the pattern across hundreds of meetings.

2. Ad-hoc questions across email, meetings and files Copilot wins

• ArcGlass: ArcGlass is not a general-purpose assistant. It does not write documents or answer arbitrary questions over the whole company. It answers the questions it was built for: which accounts need attention, what customers are asking, what messaging lands, how each rep is trending.
• Microsoft 365 Copilot: Copilot Chat grounds answers in the user's email, calendar, meetings, chats and files through Microsoft Graph and the semantic index, plus 100+ connectors. Researcher handles multi-step research at work and Analyst runs data analysis with Python. For "what did Contoso say about pricing last month," it is fast and already in Outlook and Teams.

3. Always-on account signals ArcGlass wins

This is the core of the build vs. buy question.

• ArcGlass: ArcGlass analyzes every connected conversation as it arrives, without anyone prompting it. Account signals are tracked as new or recurring and labeled "Jump on this," "Tread carefully" or "In good shape." Companies carry a health status (At risk, Watch, On track) with a one-line reason, trended from weekly snapshots.
• Microsoft 365 Copilot: Copilot answers when a user asks, and the Sales agent surfaces CRM context inside Outlook and Teams for the deal in front of the seller. Copilot Studio and the Work IQ APIs let a team build its own agents on Microsoft 365 data, billed in Copilot Credits. The schema, the history, the scoring rules and the upkeep are then yours to design and maintain.

You can build this on Copilot Studio. The question is whether you want to own that project.

4. Leadership briefing across the account book ArcGlass wins

• ArcGlass: The Home view gives each leader an "Act now / Watch / Working" list, a week-over-week "What's changed across your customers" dashboard, and a narrative "The story this period." Accounts Pulse gives an exec view of cohort patterns across the book.
• Microsoft 365 Copilot: Copilot only surfaces data a user already has permission to view. That is the right security model. It also means a COO asking Copilot about customer conversations gets answers from what that COO can open, which usually does not include every rep's mailbox and meetings. A cross-team read needs shared data or a custom agent with broader access.

5. Messaging and positioning across accounts ArcGlass wins

• ArcGlass: Messaging analysis shows what lands, what falls flat, and how the best people deliver it, aimed at the CEO, COO and CMO. Positioning separates claims (what you say) from differentiators (what customers raise unprompted across accounts), with evidence bands and named failure modes. Product Signals and Customer Questions roll up across conversations with links to the source calls.
• Microsoft 365 Copilot: Copilot can do a version of this if someone gathers the right transcripts and writes a good prompt, and Researcher can run a multi-step pass over work data the user can access. The result is a one-off answer, not a tracked view that updates as new conversations arrive.

6. Rep coaching memory ArcGlass wins

• ArcGlass: Every meeting flags rep moments as "Standout," "Coaching," or "Worth sharing as a model." The Staff view keeps per-rep trends over time with coaching memory, so a manager sees whether last month's coaching point is still showing up.
• Microsoft 365 Copilot: The Sales agent's recap shows conversation KPIs and action items for each call, and Copilot can summarize a rep's meetings on request. We did not find a per-rep coaching record that runs across quarters in Microsoft's Copilot documentation.

7. Data handling and training policy Tie on training, Microsoft ahead on compliance

Both commit not to train models on your data. Microsoft's compliance footprint is far larger.

• ArcGlass: ArcGlass never trains AI models on customer conversations, stores no recordings, encrypts in transit and at rest, and isolates each tenant. Listen transcribes on-device and raw audio never leaves the machine. SOC 2 Type II is in progress, with a DPA and a Trust Center.
• Microsoft 365 Copilot: Microsoft states that prompts, responses and data accessed through Microsoft Graph are not used to train foundation LLMs. Copilot is covered by Microsoft's data residency commitments and is an EU Data Boundary service. It inherits Microsoft 365 security, compliance and privacy policies.

8. Access scoping Different models

• ArcGlass: ArcGlass uses role-based access with reporting-tree scoping: reps see their own data, managers see their direct reports, leaders see the rollup. SSO and SCIM are supported. The org chart decides who sees what.
• Microsoft 365 Copilot: Copilot follows each user's existing Microsoft 365 permissions, so it never shows content the user cannot already open. The Sales agent also applies existing CRM access controls. The mailbox and file permissions decide who sees what.

Neither is better in general. They answer different questions: "what can this person open" versus "what should this manager see about their team."

9. Cost and setup Depends on what you already own

• ArcGlass: Every plan starts with a free 14-day trial and pricing is tailored through sales. Connecting a source takes about two minutes, with no rollout project, and reps do not change how they work. Listen is free.
• Microsoft 365 Copilot: Microsoft 365 Copilot is $30/user/month as an enterprise add-on, $21 for Copilot Business, or bundled in E7 at $99/user/month. If you already pay for it, the marginal cost of trying it on meeting and email questions is zero. Custom agents add Copilot Studio credit costs and build time.

10. Extensibility and ecosystem Copilot wins

• ArcGlass: ArcGlass connects to the sources and systems listed on its integrations page, writes back to Salesforce, HubSpot, Google Calendar and Outlook, and sends alerts to PagerDuty and OpsGenie. Custom tools and webhooks cover sources not listed. It is a much smaller ecosystem.
• Microsoft 365 Copilot: Copilot Studio, the Work IQ APIs, Agent 365, 100+ connectors, and the whole Microsoft 365, Dynamics 365 and Azure platform. Enterprises have built thousands of agents on it; KOHLER reports 3,000+.

Coverage areas only one side has

Takeaways

1. Copilot is enough for a lot of this. One meeting recap, a question across your inbox, a drafted follow-up, a research pass before a QBR: Copilot does these well, inside tools people already use. If that is the whole need, you do not need ArcGlass.
2. The gap is the question nobody asks. Copilot is excellent when someone knows what to ask. ArcGlass is for the signals nobody thought to ask about: the account that went quiet, the objection now showing up in five deals, the rep whose calls changed this month.
3. Permissions shape what a leader can see. Copilot shows each user what they can already open, which is the right default. A leadership read across every rep's conversations needs a system designed for that view, with scoping by reporting tree.
4. Building it yourself is possible. Copilot Studio and the Work IQ APIs are real platforms. If you have the team to design the schema, keep history, tune the scoring and maintain it, you can build much of this. ArcGlass is the option for teams that would rather buy it.
5. If you're choosing between them: pick Microsoft 365 Copilot if our problem is "people spend too long on email, meeting notes, documents and finding information," and we already run on Microsoft 365. Pick ArcGlass if our problem is "leadership has no standing read on what customers are telling us, which accounts are slipping, and how the team is delivering the message." This is the common pattern. Copilot for each person's ad-hoc work in Outlook and Teams; ArcGlass reading the same Teams meetings and Outlook/Exchange mail for the standing analysis leaders review each week.

How ArcGlass thinks about the overlap

We spent a long time at Microsoft and have a lot of respect for what Microsoft 365 Copilot does. We do not position ArcGlass as a Copilot replacement. If your team lives in Outlook and Teams, Copilot is probably the right assistant for them.

ArcGlass does one narrower job: it reads the customer conversations your team already has, on Teams, Outlook and Exchange and everywhere else, and tells leaders what is working, what needs attention, and what to change in the message. It does that every day without anyone asking, and it keeps the history so trends are visible. That is the part that is hard to get from an assistant, and it is the part we built.

Sources

1. Microsoft 365 Copilot enterprise pricing (accessed 2026-09-27)
2. Microsoft 365 Copilot business plans and pricing (accessed 2026-09-27)
3. Microsoft Copilot Studio plans and pricing (accessed 2026-09-27)
4. M365 E7 to launch May 1 for $99 per user per month (Directions on Microsoft) (accessed 2026-09-27)
5. Intelligent recap for Teams calls, meetings, and events (Microsoft Learn) (accessed 2026-09-27)
6. Sales agent in Microsoft 365 Copilot FAQ (Microsoft Learn) (accessed 2026-09-27)
7. Data, privacy, and security for Microsoft 365 Copilot (Microsoft Learn) (accessed 2026-09-27)
8. Announcing the new Work IQ APIs (Microsoft 365 Blog, June 2, 2026) (accessed 2026-09-27)
9. Microsoft Ignite 2025: Copilot and agents built to power the Frontier Firm (accessed 2026-09-27)
10. Researcher and Analyst are now generally available in Microsoft 365 Copilot (accessed 2026-09-27)
11. Microsoft Cloud and AI strength fuels fourth quarter results (July 29, 2026) (accessed 2026-09-27)
12. Microsoft headcount falls for first time in a decade (GeekWire, 2026) (accessed 2026-09-27)
13. EY redefines CRM with Dynamics 365 Sales and Sales Agent in Microsoft 365 Copilot (accessed 2026-09-27)
14. KOHLER achieves 98% Microsoft 365 Copilot adoption (accessed 2026-09-27)
15. Barclays to roll out Microsoft 365 Copilot to 100,000 colleagues (accessed 2026-09-27)
16. JCB boosts work efficiency with adoption of Microsoft 365 Copilot (accessed 2026-09-27)

Questions about this comparison? Reach out at hello@arcglass.io — we're happy to dig into specifics for your stack.