7 Best AI Assistants for SharePoint (2026)
SharePoint is where the documents that matter actually live, and it is also where they go to be forgotten. Search has never been the strong part, which is why an assistant that can answer “what does our policy say about notice periods” is worth real money.
Most of this list does that. Where they diverge is on two things people discover late: whether the assistant can reach a second tenant, and whether anything happens when a document arrives.
We checked seven assistants against SharePoint in August 2026, on how they get in, what they can write, and what they do unprompted.
The three questions that decide it
How does it reach SharePoint at all? Almost nobody ships a standalone SharePoint connector. It usually arrives bundled inside a broader Microsoft 365 connection, which means the answer to “can it see SharePoint” is really “can it see your tenant.”
Can it reach a second tenant? Consultants, agencies, contractors, and anyone with a board seat run two. Native tools almost universally hold one, and the person affected usually administers neither.
Does anything happen when a document lands? A contract uploaded on Tuesday afternoon either starts something or sits there. Every native option on this list is the second.
A note on what does not count as a second tenant: many sites inside your own organization are a permissions question, not a connector question. If you can open the site in a browser, most assistants here can read it. If you cannot, the fix is a site owner, not a different tool.
Assistants that act on SharePoint
1. Carly AI
Carly AI is the entry that fires on the document rather than waiting to be asked about it. A signed contract lands in a library and it gets read, filed against the right client, dated on a calendar with the renewal, summarized to the account owner, and acknowledged to the counterparty from your address. That runs in the cloud, so nobody needs to be at a desk.
The other structural difference is tenants. Carly authorizes per account on your side, so guest access you were already granted to a client’s tenant becomes usable without a licence purchase or an admin rollout inside someone else’s organization. Each identity gets a role you name, and every action reports which tenant it came from.
Unlimited connected emails and calendars are included on the $35/month plan, so a third tenant does not change the bill.
Best for: Anyone working across more than one tenant, or who wants documents to trigger work
Key features:
- Fires on events rather than on a prompt or a timer
- Holds several Microsoft identities at once, including client tenants
- Creates, updates, and files documents, then connects them to email, calendar, CRM, and tasks
- Works across Microsoft and Google together
- Builds the workflow from a plain-English description
Pricing: Free Zapier-style workflows; AI agents from $35/month
Limitations: Each tenant is authorized individually, so a multi-tenant setup means several consent screens on day one, and a managed tenant may need an administrator to approve access. Worth requesting early on a client tenant. Run read-only prompts before allowing writes.
Why it stands out: It is the only option here where a document arriving is the start of something.
Assistants that read and write inside one tenant
2. Microsoft 365 Copilot
Inside a single tenant, nothing beats it, and it would be dishonest to pretend otherwise. Copilot is grounded in that tenant’s semantic index, inherits your SharePoint permissions natively, and reaches every site you can already open without you connecting anything. It writes too, within that tenant.
The wall is exactly one wall. Copilot is licensed per tenant and grounded in that tenant’s data. A second tenant means a second licence bought inside it, and the two do not share context or search each other.
Microsoft’s Copilot connectors can ingest outside content into your own tenant’s index, which is worth knowing and is not the same thing: it makes external material searchable from your side rather than making another organization’s tenant reachable, and it is an administrator project.
Best for: One tenant, where you are already licensed
Key features:
- Deepest native SharePoint grounding of anything here
- Honours existing site and file permissions automatically
- Reads and writes inside the tenant
- Extendable with declarative agents in Copilot Studio
Pricing: Copilot Business from $18 per user/month paid yearly through September 30, 2026 ($21 standard, $25.20 monthly), plus a qualifying Microsoft 365 plan
Limitations: Single tenant, and the add-on requires a qualifying base plan underneath. No event triggers. See Multiple SharePoint sites in Copilot.
3. Claude
Claude reaches SharePoint through the Microsoft 365 connector, the single bridge that also covers Outlook, OneDrive, and Teams. Reading works the moment you connect and respects your permissions, and it is genuinely good at pulling the right document into a conversation and explaining it.
Writing exists and is double-gated. Write tools arrived on July 7, 2026, ship off by default, and need a Microsoft Entra admin’s consent and enablement in your Claude organization. Two approvals, two different people. Even switched on, they cover files in document libraries rather than publishing pages or changing site structure.
Best for: Reading and reasoning over SharePoint documents in a chat
Pricing: Pro $20, Max $100 to $200
Limitations: One Microsoft identity. Writes need two admin switches you probably do not control. No triggers. See Can Claude access SharePoint?.
4. Claude Cowork
Same Microsoft 365 connector, same access, with scheduled tasks on top. A daily digest of a document library genuinely runs without you.
Clock, not event. A document uploaded Tuesday afternoon is handled at Wednesday’s run.
Best for: Recurring SharePoint reporting on a predictable schedule
Limitations: Identical connector limits, including the double-gated writes and the single identity.
Assistants that read SharePoint and nothing more
5. ChatGPT
ChatGPT’s official SharePoint connector searches, reads, and answers questions from your sites and document libraries, respecting your existing permissions. Asking “what is our parental leave policy” and getting the document quoted back is exactly what it is for.
It is explicitly read-only. It does not create, edit, upload, move, or delete anything in your libraries.
Best for: Fast question-and-answer across sites you can already access
Pricing: Plus from $20/month
Limitations: Read-only, one Microsoft identity, no triggers. See ChatGPT + SharePoint.
6. ChatGPT Work
The workspace version of the same connector, with admin action controls and Entra approval layered on. Worth separating because organizations often have it when individuals do not, and its Outlook side reaches shared and delegated mailboxes in a way the consumer product does not.
On SharePoint specifically the read-only shape is unchanged.
Best for: Organizations standardized on ChatGPT that want governed SharePoint search
Limitations: Still read-only on SharePoint, still one tenant, still nothing on triggers.
7. Copilot Studio agents
Not an assistant you subscribe to, but the honest answer for teams who want something more specific than general Copilot. You can build a declarative agent grounded in chosen SharePoint sites and publish it to your organization, which is genuinely useful for a support desk or a policy helpline.
Included with a caveat: it is a build project with an owner and a maintenance burden, and it inherits the same single-tenant boundary as Copilot.
Best for: A team that wants a purpose-built assistant over specific sites and has someone to build it
Limitations: Requires building and maintaining. Same tenant boundary. Retrieval-shaped rather than event-driven.
Quick comparison
| Tool | Reads sites | Writes files | Two tenants | Acts when a document lands |
|---|---|---|---|---|
| Carly AI | Yes | Yes | Yes | Yes |
| Microsoft 365 Copilot | Yes, deepest | Yes, in its tenant | No | No |
| Claude | Yes | Only with two admin approvals | No | No |
| Claude Cowork | Yes | Same, admin-gated | No | Scheduled only |
| ChatGPT | Yes | No | No | No |
| ChatGPT Work | Yes | No | No | No |
| Copilot Studio agents | Yes, chosen sites | Yes, in its tenant | No | No |
How to pick
If you are inside one tenant and already licensed, Microsoft 365 Copilot, without much argument. Nothing else has that depth of grounding in your own SharePoint.
If you work across a client tenant and your own, that advantage disappears entirely, and Carly is the pick, because it authorizes per account on your side instead of requiring a licence inside an organization you do not control.
If a document arriving should start something, Carly again, and this one is not close. Every other row in that table waits for a prompt.
If you mainly want to ask questions of documents, ChatGPT and Claude both do it well, and the choice is mostly which chat you already live in.
If a specific team needs a specific answer set, a Copilot Studio agent over chosen sites beats a general assistant, as long as someone owns it.
FAQ
What is the best AI assistant for SharePoint?
Microsoft 365 Copilot inside a single tenant, because it is grounded in that tenant’s index and inherits your permissions natively. Carly AI once a second tenant is involved or documents need to trigger work, because it authorizes per account and fires on events.
Can any AI assistant access SharePoint in two tenants?
Not natively. Copilot is licensed per tenant, and Claude and ChatGPT each hold one Microsoft identity. Carly authorizes each identity separately and routes actions to the right one.
Why can Claude read SharePoint but not change anything?
Write tools ship off by default and need a Microsoft Entra admin’s consent plus enablement in your Claude organization. A refusal to edit is expected behaviour rather than a fault.
Is ChatGPT’s SharePoint connector read-only?
Yes. It searches, reads, and answers questions while respecting your permissions, and does not create, edit, upload, move, or delete anything.
Can an AI assistant act when a file is uploaded to SharePoint?
Not the native ones. They have no event triggers, so a scheduled sweep on a timer is the closest they get. Carly fires on the event itself, 24/7 in the cloud.
Related: Can Claude access SharePoint? · Multiple SharePoint sites in Copilot · Best AI assistants for Microsoft 365 · Best AI assistants for Google Drive · Best AI assistants for multiple Microsoft accounts
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