AI Tool Comparison
Microsoft Copilot vs Superhuman
A side-by-side breakdown to help you pick the right tool for your workflow.
Microsoft Copilot
Ask questions, generate content, and get help with everyday tasks across your documents and web browsing, built into Windows, Edge, and Microsoft 365 apps.
Superhuman
Fly through your inbox with an AI-accelerated email client — Grammarly acquired Superhuman in October 2025 and expanded it into a broader Suite with AI docs and agent tools.
Bottom Line
Last reviewed: August 2026
Microsoft Copilot and Superhuman both sit in Productivity, but they're built around different use cases within it. Microsoft Copilot runs on a freemium model while Superhuman runs on a paid-only plan, which alone may settle it if budget or a free tier is a hard requirement. Superhuman carries the higher rating (4.7 vs 4.2), but a gap that size rarely overrides a real workflow fit on its own.
Choose Microsoft Copilot if…
Best for teams already living inside Word, Excel, and Outlook who want AI help without leaving those apps, and its edge is deep, native integration across the entire Microsoft 365 suite most assistants only bolt on. Makes the most sense as a bundled upgrade for Microsoft 365 shops, less so as a standalone assistant.
Choose Superhuman if…
Best for professionals processing high email volume who want the fastest possible path to inbox zero, and its edge is every action is keyboard-driven, with AI-drafted replies that hold up against manual writing. Genuinely the fastest email client available, the price and invitation-only access make it overkill for casual use.
| Attribute | Microsoft Copilot | Superhuman |
|---|---|---|
| Category | Productivity | Productivity |
| Pricing | freemium | paid |
| Pricing Detail | Free (limited) / bundled with Microsoft 365 ($99.99/yr Personal) | $30/mo Starter / $40/mo Business |
| Rating |
Key Features
Microsoft Copilot
- Web-grounded responses with live Bing search for up-to-date answers and citations
- DALL-E image generation built in, create images from any conversation without leaving the interface
- Microsoft 365 integration lets it draft emails, summarise documents, and build PowerPoint decks from prompts
Superhuman
- AI reply drafts
- Email summarization
- Keyboard-first design
- Split inbox
- Auto follow-up reminders
Pros
Microsoft Copilot
- •Free tier is genuinely capable, GPT-4o quality with web search, no subscription required
- •Best AI option for Microsoft 365 users, the Office integration is deeper than any third-party alternative
Superhuman
- •Genuinely fastest way to do email
- •AI drafts are excellent
- •Keyboard shortcuts for everything
- •Loved by power users
Cons
Microsoft Copilot
- M365 Copilot enterprise pricing ($30/user/mo) is steep relative to standalone AI tools
- Standalone web interface feels less polished than ChatGPT for pure conversational use
Superhuman
- Expensive
- Requires invitation (exclusive)
- Gmail/Outlook only
- Overkill for casual email users