# Notion AI vs Microsoft 365 Copilot vs Read AI

A side-by-side look at three AI assistants that work inside tools teams already use, based on the vendors' own help and product pages.

Three assistants for everyday knowledge work: Notion AI automates work inside Notion, Microsoft 365 Copilot is built into Word, Excel, PowerPoint, Outlook and Teams, and Read AI follows meetings, email and messages.

Canonical URL: https://globalaiproductindex.com/compare/notion-ai-vs-microsoft-365-copilot-vs-read-ai/

| Dimension | [Notion AI](https://globalaiproductindex.com/products/notion-ai/) | [Microsoft 365 Copilot](https://globalaiproductindex.com/products/microsoft-365-copilot/) | [Read AI](https://globalaiproductindex.com/products/read-ai/) |
| --- | --- | --- | --- |
| Company | Notion Labs | Microsoft | Read AI |
| Category | Productivity | Productivity | Productivity |
| Business model | Paid | Paid | Freemium |
| License | Not recorded | Not recorded | Not recorded |
| Pricing | Notion AI is included with Notion's paid Business and Enterprise plans, with limited trial usage on lower tiers. | Microsoft 365 Copilot costs $30 per user per month as an add-on to qualifying Microsoft 365 business and enterprise plans. | Read AI has a free plan with limited meetings; Pro, Enterprise, and Enterprise+ tiers add volume, integrations, and analytics. |
| Pricing page | Not recorded | Not recorded | Not recorded |
| Documentation | https://www.notion.com/help/custom-agents | Not recorded | Not recorded |
| Launched | 2023-02 | 2023-11 | 2021 |
| Availability | global | global | global |
| Where it lives | Inside Notion, as agents you @mention or attach to database events | Inside Word, Excel, PowerPoint, Outlook and Teams, and across desktop, mobile and web | A separate assistant that works across your meeting platforms, email and messages |
| Automation | Custom Agents run in the background on schedules and workspace events | Agent Builder for work-grounded agents, extended with Copilot Studio; Auto picks the model per task | Agents and a Digital Twin that work across meetings, email and messaging |
| What it connects to | Notion pages and databases, plus Slack | Microsoft 365 apps and Teams, with Copilot Studio for extensions | Zoom, Google Meet, Teams, Outlook and Slack, plus MCP, ChatGPT and Claude integrations |
| Controls and compliance | Agents are scoped to the pages you grant, with activity logs and an Enterprise audit log | Presented as secure by design and grounded in your organisation's work context | SOC 2 Type 2, GDPR and HIPAA compliance, with no training on your data by default |
| Website | https://www.notion.com/product/ai | https://www.microsoft.com/microsoft-365/copilot | https://www.read.ai |
| Record updated | 2026-10-10 | 2026-10-10 | 2026-10-09 |

## When to choose each

- **Notion AI** — When your team's docs and databases live in Notion and you want agents to run recurring work there.
- **Microsoft 365 Copilot** — When your work happens in Microsoft 365 apps and you want AI grounded in that tenant's context.
- **Read AI** — When the work to capture is meetings, email and messages across whatever platforms you use.

## FAQ

**Which of these writes documents for me?**

Notion AI and Microsoft 365 Copilot generate and edit content inside their own apps; Read AI focuses on capturing and summarising meetings, email and messages.

**Do they need a paid plan?**

Notion's Custom Agents require a Business or Enterprise plan; Microsoft sells Copilot plans for individuals, business and enterprise; Read AI lists its own plans.

**Can they run without me?**

Notion's Custom Agents run on triggers and schedules; Microsoft 365 Copilot includes Agent Builder and Autopilot; Read AI describes agents and a Digital Twin.


## Comparison claim sources

- **Where it lives**
  - [Notion AI](https://www.notion.com/help/custom-agents) — verified 2026-10-12
  - [Microsoft 365 Copilot](https://www.microsoft.com/en-us/microsoft-365/copilot) — verified 2026-10-12
  - [Read AI](https://www.read.ai) — verified 2026-10-12
- **Automation**
  - [Notion AI](https://www.notion.com/help/custom-agents) — verified 2026-10-12
  - [Microsoft 365 Copilot](https://www.microsoft.com/en-us/microsoft-365/copilot) — verified 2026-10-12
  - [Read AI](https://www.read.ai) — verified 2026-10-12
- **What it connects to**
  - [Notion AI](https://www.notion.com/help/custom-agents) — verified 2026-10-12
  - [Microsoft 365 Copilot](https://www.microsoft.com/en-us/microsoft-365/copilot) — verified 2026-10-12
  - [Read AI](https://www.read.ai) — verified 2026-10-12
- **Controls and compliance**
  - [Notion AI](https://www.notion.com/help/custom-agents) — verified 2026-10-12
  - [Microsoft 365 Copilot](https://www.microsoft.com/en-us/microsoft-365/copilot) — verified 2026-10-12
  - [Read AI](https://www.read.ai) — verified 2026-10-12

## Sources and record dates

Record dates describe index updates, not independent product tests. Check linked documentation for current features and pricing.

### Notion AI

Record updated: 2026-10-10

- [Official website](https://www.notion.com/product/ai)
- [Notion](https://www.notion.com)
- [Documentation](https://www.notion.com/help/custom-agents)
- [Documentation](https://www.notion.com/help/custom-agents)

### Microsoft 365 Copilot

Record updated: 2026-10-10

- [Official website](https://www.microsoft.com/microsoft-365/copilot)
- [Microsoft 365](https://www.microsoft.com/microsoft-365)

### Read AI

Record updated: 2026-10-09

- [Official website](https://www.read.ai)
- [TechCrunch coverage](https://techcrunch.com/2024/04/02/read-ai-expands-its-ai-powered-summaries-from-meetings-to-messages-and-emails/)
- [Meeting Summaries, Transcripts, AI Notetaker & Enterprise Search | read.ai](https://www.read.ai/)

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Data from the [Global AI Product Index](https://globalaiproductindex.com/), licensed CC BY 4.0.