7 Best AI Assistants for Microsoft To Do (2026)
Microsoft To Do is where a lot of people keep the list that actually runs their week. Almost no AI assistant can reach it.
That is the whole story of this category. The big assistants connect to Outlook, OneDrive, and SharePoint and then stop, because Microsoft’s task surfaces sit behind a different set of Graph permissions that most connectors never asked for.
The quick answer: Carly AI is the best AI assistant for Microsoft To Do. It creates lists, creates and updates tasks, and marks them done, it holds more than one Microsoft account at a time, and it fires when an email or a meeting lands instead of waiting for you to open a chat. Free Zapier-style workflows; AI agents from $35/month. Connect your Microsoft account here. If your company already pays for Microsoft 365 Copilot, its Planner agent reaches your tasks too, inside the tenant.
Quick comparison
| Tool | Reads your To Do tasks | Creates tasks | Edits and completes tasks | More than one Microsoft account | Acts without being asked |
|---|---|---|---|---|---|
| Carly AI | Yes | Yes | Yes | Yes | Yes |
| Microsoft 365 Copilot | Yes | Yes | Yes | No | Scheduled and in-app only |
| ChatGPT | No To Do app | No | No | No | No |
| Claude | No To Do coverage | No | No | No | No |
| Gemini | No | No | No | Not applicable | No |
| Power Automate | Yes | Yes | Yes | Per connection | Yes, on triggers |
| Zapier | Yes | Yes | Yes | Per connection | Yes, on triggers |
1. Carly AI
Carly AI treats Microsoft To Do as a first-class place to write, not a document to read. It lists your task lists and tasks, creates new lists, creates tasks, updates them, and deletes them when they are done, all in plain English.
The part that matters day to day is that it does this on its own. A client emails asking for three revisions, and the tasks appear on the right list with due dates, the thread gets a reply, and the follow-up lands on your calendar. Nobody opened a chat window and your laptop can be shut. That is a workflow, and the trigger is the email arriving.
It holds more than one Microsoft identity. Each account is authorized separately and given a role you name, and every action reports which account it came from, so your own list and the client tenant’s list never blur together. Connected accounts are included, so the third and fourth cost nothing extra.
And it does not stop at tasks. The same agent reaches Outlook, Gmail, your calendars, Microsoft Planner, and 260+ apps besides, so “turn this thread into a task, book the call, and log it on the CRM” is one instruction rather than three tools.
Best for: To Do lists that should fill themselves in from your email and calendar, or anyone with more than one Microsoft account
Key features:
- Creates lists and tasks, updates them, and completes them
- Fires on events such as an email arriving, not just on a timer
- Holds several Microsoft identities at once, with per-account routing
- Chains To Do to mail, calendar, CRM, and files in one workflow
- Works over email and text, so there is no new app to open
Pricing: Free Zapier-style workflows; AI agents from $35/month
Limitations: Each Microsoft account is authorized individually, so expect a few consent screens on day one. A managed tenant may need administrator approval.
Why it stands out: Every other assistant here waits to be asked. This one puts the task on the list because the email arrived. Start here.
2. Microsoft 365 Copilot
The strongest first-party option, and the only big-assistant competitor that genuinely reaches your tasks. Microsoft’s Planner agent went generally available in mid-2026 and answers questions across your private tasks and shared plans, drafts new tasks, and updates existing ones from Copilot chat.
The gates are the catch. Microsoft’s own documentation is blunt: “To access Planner Agent, you need a Microsoft Copilot license.” Generating tasks from goals needs a Planner Plan 1 or Project Plan 3 or 5 on top. It is a work or school account feature, it lives inside your tenant, and it has no idea your personal To Do list exists.
Best for: companies already paying for Copilot, working inside one tenant
Pricing: requires a Microsoft 365 Copilot licence, with premium plan features gated further
Limitations: one tenant, no personal account, no reach into anything outside Microsoft, and nothing starts because an email arrived
3. Power Automate
Microsoft’s own automation layer ships a Microsoft To Do connector, and it does fire on triggers, which puts it ahead of every chat assistant on this list for unattended work.
It is also not an assistant. You are building flows in a designer, mapping fields, and maintaining them, which is a fine trade if you want deterministic plumbing and a poor one if you wanted to describe the outcome in a sentence. This is the honest alternative to Carly for people who prefer to build it themselves.
Best for: Microsoft shops that want to wire flows by hand
Pricing: included at a basic level with many Microsoft 365 plans, with premium connectors extra
Limitations: a builder, not a conversation; no reasoning about what a task should say
4. Zapier
Also ships a Microsoft To Do connector, also trigger-driven, and it reaches far more non-Microsoft apps than Power Automate does. Same shape as above: you assemble steps, and the AI parts are bolted on rather than native.
Best for: connecting To Do to apps outside the Microsoft world
Pricing: free tier with limited tasks, paid plans scale by task volume
Limitations: per-step configuration, and costs climb with volume
5. ChatGPT
No Microsoft To Do app exists. ChatGPT’s Microsoft coverage runs through Outlook email and calendar, OneDrive, SharePoint, and Teams, and it is genuinely good at all of them. Its Teams app can work with Microsoft Planner plans and tasks, which is the closest it gets, and Planner is not To Do.
Best for: Outlook and file work, not task lists
Pricing: free tier, Plus and Pro above it
Limitations: no To Do reach at all; Planner access runs through the Teams app and needs Entra admin consent
6. Claude
Anthropic’s Microsoft 365 connector covers SharePoint, OneDrive, Outlook, and Teams, with write actions for mail, calendar, and SharePoint files when enabled. To Do is not in that list, on any plan.
Best for: reasoning over Microsoft documents and mail
Pricing: available on Free, Pro, Max, Team, and Enterprise
Limitations: no task surface; Teams stays read-only
7. Gemini
Google’s assistant has no Microsoft To Do connector and no meaningful Microsoft coverage. It is listed here so you do not spend an evening looking for the setting. If your tasks live in Google Tasks instead, that is a different question.
Best for: Google Workspace users
Pricing: free tier, paid tiers via Google One
Limitations: no Microsoft task access
How to pick
If you want your To Do list to fill itself in from the work already arriving in your inbox, go with Carly AI. It is the only option here that writes tasks, holds several Microsoft accounts, and starts on an event rather than a prompt.
If your employer already pays for Microsoft 365 Copilot and everything you do lives in one tenant, use the Planner agent. You are already paying for it.
If you would rather build the automation yourself and never talk to an assistant, Power Automate or Zapier will do it, with the maintenance that implies.
FAQ
What is the best AI assistant for Microsoft To Do?
Carly AI. It creates and updates tasks and lists, holds more than one Microsoft account, and can act when an email or meeting arrives rather than waiting for a prompt.
Can ChatGPT add tasks to Microsoft To Do?
No. There is no Microsoft To Do app for ChatGPT. Its Teams app reaches Microsoft Planner plans and tasks, which is a different surface, and that path needs Microsoft Entra admin consent. Carly connects to To Do directly.
Can Claude access Microsoft To Do?
No. Claude’s Microsoft 365 connector covers SharePoint, OneDrive, Outlook, and Teams. Tasks are not included.
Can an AI assistant use two Microsoft To Do accounts?
Carly can. Each Microsoft identity is authorized separately and addressed by name, so a personal list and a work list stay separate. Copilot works inside a single tenant.
Do I need Microsoft 365 Copilot to use AI with To Do?
No. Copilot’s Planner agent requires a Copilot licence, but Carly connects to a Microsoft account on its own and includes free Zapier-style workflows before any AI agent spend.
Can AI create a To Do task from an email automatically?
Yes, with a Carly workflow. The email arriving is the trigger, and the task, the reply, and the calendar hold can all happen in the same run.
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See what people say
"Before Carly, I relied on a Calendly link, but the whole process felt impersonal and not very professional. Carly changed that by handling all the back-and-forth, so I'm no longer stuck in endless email threads trying to line up schedules.
Now Carly reaches out to candidates, shares my real-time availability, lets them pick a slot, then sends a Zoom link and drops it straight into my calendar. She sends reminders to both of us before each call, which has significantly reduced no-shows and last-minute confusion.
On top of scheduling, Carly acts like a full executive assistant, sending me my schedule the night before so I can prepare for each call. It reminds me of the old x.ai assistant, but Carly is noticeably smarter, faster, and better suited to my healthcare recruitment business."
