Carly vs Microsoft Agent 365 — Which is Better in 2026?

Carly vs Microsoft Agent 365: Full Analysis

Put Carly next to Microsoft Agent 365 and the differences surface fast — both sit in the productivity tools space, but they solve the problem from different angles. Carly is best known for always-on cloud agents, whereas Microsoft Agent 365 stands out for centralised agent management. Both land at 4.4/5 with users, so the right pick comes down to fit rather than raw quality.

Where Carly pulls clearly ahead is scheduling meetings based on calendar availability and preferences. A frequent plus in reviews: Truly autonomous, no prompting needed. Microsoft Agent 365, by contrast, is the stronger choice for building custom AI agents for HR, IT help desk, and operations workflows. In its favour: Deep native integration with Microsoft Graph connectivity — no brittle middleware or manual sync required. Picking based on which of those jobs you actually do day to day beats chasing a longer feature list.

Carly addresses the real pain of calendar and email management with context-aware AI. Microsoft Agent 365 is purpose-built for Microsoft-heavy enterprises — the M365 integration means agents can access the email, document, and Teams data that lives in Microsoft's ecosystem. Bottom line: the "better" tool here is the one that fits the work you do most.

Who Should Use Each Tool

Choose Carly if you are focused on professionals and executives who want an AI assistant with deep calendar and email integration to manage scheduling, prioritise tasks, and reduce administrative overhead, or if a big part of your week goes to summarising emails and highlighting action items automatically. Its free tier also lets you validate the fit before paying.

Choose Microsoft Agent 365 if your priority is enterprise organisations on Microsoft 365 wanting to build and deploy custom AI agents that automate business processes within their existing M365 ecosystem — without custom AI development, especially for automating document processing and approval workflows in SharePoint. Note there is no free plan, so plan for a paid tier from day one.

Real-World Performance

On reliability and output quality, both are dependable, but Carly shines at scheduling meetings based on calendar availability and preferences and Microsoft Agent 365 at building custom AI agents for HR, IT help desk, and operations workflows.

Learning curve is worth weighing. Carly has a known trade-off — Newer product with fewer integrations — worth evaluating before committing if this is central to your use case. On Microsoft Agent 365's side: $30/user/mo (add-on) puts it out of reach for individual users and very small teams on tight budgets. Whichever one slots into your current stack with the least friction tends to win in the long run.

Pricing & Value for Money

Carly is the lower-risk start here: it has a genuine free plan, while Microsoft Agent 365 does not. Paid plans start at $20/mo for Carly (Pro) and $30/user/mo for Microsoft Agent 365 (Included in M365 Copilot), making Carly the cheaper entry point at $20/mo versus $30/user/mo. The extra spend on Microsoft Agent 365 only pays off if you need what its higher tier unlocks. The sticker price rarely tells the whole story — check seat counts and usage limits before you commit.