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Technology · head to head

Superhuman vs x.ai

Superhuman logo

Superhuman

Technology

The fastest email experience ever made

From
$30/month
Rated
-
Full reviewWebsite
x.ai logo

x.ai

Calendars

AI-powered meeting scheduling assistant

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Superhuman high pricing compared to free alternatives like Gmail; x.ai aPI pricing is per-token/per-unit, e.g. grok-imagine-image-2.0 costs 0.04 USD per image and text to speech costs 15.00 USD per 1M characters, not a flat subscription
  • They diverge on capability: Superhuman covers Blazing fast performance, x.ai covers AI scheduling assistant.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Superhuman and x.ai actually diverge.

Attributes where Superhuman and x.ai differ
AttributeSuperhumanx.ai
Starting price$30/monthOn request
Pricing modelUnknownusage-based
PlatformsWeb, iOSWeb, Email
CategoryTechnologyCalendars
Founded20152014

Identical on both: free tier (No), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Superhuman

  • Blazing fast performance
  • Keyboard-first design
  • AI-powered triage
  • Split inbox
  • Read statuses
  • Remind me later
  • Social insights
  • Calendar integration

Only in x.ai

  • AI scheduling assistant
  • Email-based scheduling
  • Natural language processing
  • Calendar sync
  • Meeting preferences
  • Outlook
  • Office 365
  • Email support

Both cover

  • Google Calendar
  • Web support

What people use each for

The jobs each tool is most often brought in to do.

Superhuman

  • Email managementnot x.ai
  • Inbox zeronot x.ai
  • Team collaborationnot x.ai
  • Sales outreachnot x.ai
  • Executive communicationnot x.ai

x.ai

  • Schedulingnot Superhuman
  • Appointment bookingnot Superhuman
  • Time trackingnot Superhuman
  • Resource managementnot Superhuman
  • Team coordinationnot Superhuman

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Superhuman

  • High pricing compared to free alternatives like Gmail
  • Lacks unified inbox for managing multiple email accounts in a single view
  • Limited calendar functionality compared to dedicated scheduling tools
  • No native task management features

x.ai

  • API pricing is per-token/per-unit, e.g. grok-imagine-image-2.0 costs 0.04 USD per image and text to speech costs 15.00 USD per 1M characters, not a flat subscription

Pricing, plan by plan

Superhuman

$30/month
  • Starter$30/month
    • Email productivity
    • Superhuman AI
    • Team collaboration
  • Business$40/month
    • Auto Drafts
    • Ask AI
    • CRM integrations

x.ai

On request
  • DiscontinuedFree
    • Now part of Bizzabo

Which should you pick?

Choose Superhuman if

  • You need blazing fast performance.
  • You work on Web, iOS.
  • You also want keyboard-first design.
Superhuman review

Choose x.ai if

  • You need ai scheduling assistant.
  • You work on Web, Email.
  • You also want email-based scheduling.
x.ai review

Questions people ask

Is Superhuman or x.ai better?
Neither clearly leads. Superhuman starts at $30/month and x.ai at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Superhuman or x.ai?
Superhuman starts at $30/month and x.ai at On request.
Does Superhuman or x.ai run on more platforms?
Superhuman runs on Web, iOS. x.ai runs on Web, Email.
What is Superhuman best used for?
Superhuman is most often used for email management, inbox zero, team collaboration, sales outreach. Of those, email management and inbox zero are not what x.ai is typically brought in for.
What can Superhuman do that x.ai cannot?
Superhuman covers Blazing fast performance, Keyboard-first design, AI-powered triage, Split inbox. x.ai covers AI scheduling assistant, Email-based scheduling, Natural language processing, Calendar sync. Both handle Google Calendar, Web support.

Answered from the vendors’ own pages

Superhuman: How much does Superhuman cost?

Superhuman offers three plans: Starter at $30/user/month, Business at $40/user/month, and Enterprise with custom pricing. Annual billing provides approximately 16.7% savings, bringing the Starter plan to $25/month.

Source
Superhuman: What email platforms does Superhuman work with?

Superhuman is compatible with Gmail and Outlook, and integrates with Google Calendar and Akiflow for calendar and task planning workflows.

Source
Superhuman: Does the Business plan include CRM integrations?

Yes, the Business plan at $40/month unlocks CRM integrations with HubSpot and Salesforce, along with advanced AI features like Auto Drafts and Ask AI.

Source
Superhuman: What happened to Superhuman after the Grammarly acquisition?

Superhuman was acquired by Grammarly on July 1, 2025. The company now operates under the Superhuman name while integrating with Grammarly's AI platform.

Source
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