Superhuman is the fastest email client there is. The Alkmist Inbox Agent is a layer that organises the work after triage, ranking your inbox, chasing follow-ups, and grouping email into projects, across Outlook and Gmail, without switching clients.
Superhuman and the Alkmist Inbox Agent both draft in your voice, but they aim at different things. Superhuman makes you faster at email with a keyboard-first client you switch to; it is the priciest option here and now owned by Grammarly. The Alkmist Inbox Agent layers onto your existing Outlook and Gmail, ranks the few emails that need you, chases stalled follow-ups, and groups email into projects with one Inbox Health score. Pick Superhuman for raw speed. Pick Alkmist to stop dropping balls without changing email apps.
How the two compare on the things professionals actually ask about.
| Capability | Alkmist Inbox Agent | Superhuman |
|---|---|---|
| Works alongside your inbox (no client switch) | Layers on Outlook + Gmail |
Replaces your email client |
| Drafts replies in your voice | Four named tones |
Write with AI |
| Speed / keyboard UX | Fast, not the focus |
Sub-100ms, signature |
| Ranks the whole inbox by what needs you | 147 down to the 5 that matter |
Split Inbox + AI triage |
| Chases stalled follow-ups automatically | Queues the chase, you pick the tone |
Remind-me reminders |
| Projects view (email, docs, tasks) | Auto-grouped per project |
Not offered |
| Inbox Health score | One number, tracked daily |
Not offered |
| Built-in assistant (ask your inbox) | Ask Pidgy, voice coming soon |
Ask AI on Business tier |
| Never sends without your click | You always hit send |
Drafts, you send |
| EU data residency | EU-hosted, never trains on your mail |
US, Grammarly-owned |
| Pricing | Early access via waitlist |
From ~$25-33/user/mo |
The table shows what each does. Here is why the differences matter.
Superhuman asks you to move your whole workflow into its client and learn a keyboard-first interface. That is friction, and it slows team adoption.
The Alkmist Inbox Agent sits on top of the Outlook and Gmail you already use. Nothing to migrate, no new app to learn, same inbox with an agent working it.
Superhuman gets you to inbox zero faster, but a cleared inbox is not an organised one. The follow-up that stalls still stalls.
Pidgy turns email into a ranked list, chases the threads that go quiet, and groups everything into projects, so the work is handled, not just processed quickly.
If you live in your inbox and love processing email, nothing is faster than Superhuman. Sub-100ms actions and a keyboard-first flow are genuinely best in class.
The Alkmist Inbox Agent is quick, but speed is not its pitch. If inbox-zero velocity is the whole goal and budget is no object, Superhuman is the better fit.
Since the Grammarly acquisition, Superhuman runs inside a larger writing-tools company. For confidential client mail, some professionals would rather not.
The Alkmist Inbox Agent is EU-hosted, never trains on your mail, offers a DPA on request, and never sends without your click.
Both are good tools. They solve different problems.
More ways the Alkmist Inbox Agent stacks up.
The Alkmist Inbox Agent reads Outlook and Gmail, hands you the five that need you, and chases the rest. Join the waitlist for early access.
