AI Tool Comparison
Glean vs Superhuman
A side-by-side breakdown to help you pick the right tool for your workflow.
Glean
Connect to Slack, Google Drive, and Confluence to power unified enterprise search and an AI assistant that answers questions using your organization's own data.
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
Glean and Superhuman both sit in Productivity, but they're built around different use cases within it. Superhuman carries the higher rating (4.7 vs 4.4), but a gap that size rarely overrides a real workflow fit on its own.
Choose Glean if…
Best for knowledge-heavy companies where employees waste time searching for documents scattered across many apps, and its edge is indexes 100+ workplace apps at once and surfaces who knows what based on your actual role and team. Solves a real problem for larger organizations, the enterprise-only pricing rules out small teams entirely.
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 | Glean | Superhuman |
|---|---|---|
| Category | Productivity | Productivity |
| Pricing | paid | paid |
| Pricing Detail | Custom enterprise pricing, ~$45-50/user/mo (100-seat minimum) | $30/mo Starter / $40/mo Business |
| Rating |
Key Features
Glean
- Unified search across 100+ business apps with AI ranking based on your role and recent activity
- Glean Chat, ask questions about your company's internal knowledge in natural language
- People graph shows expertise mapping, find who in your org knows what
Superhuman
- AI reply drafts
- Email summarization
- Keyboard-first design
- Split inbox
- Auto follow-up reminders
Pros
Glean
- •Eliminates the 'I know we have a doc about this somewhere' problem that plagues knowledge-heavy teams
- •No-configuration search, it indexes apps as connected and immediately starts surfacing relevant content
Superhuman
- •Genuinely fastest way to do email
- •AI drafts are excellent
- •Keyboard shortcuts for everything
- •Loved by power users
Cons
Glean
- Enterprise-only pricing makes it inaccessible for small teams or individual users
- Requires connecting enough apps to be valuable, low ROI in organisations with fewer than 50 people
Superhuman
- Expensive
- Requires invitation (exclusive)
- Gmail/Outlook only
- Overkill for casual email users