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AI Email Assistants

Superhuman

A premium, speed-focused AI-native email client for Gmail and Outlook accounts, built around keyboard shortcuts and AI drafting, summarizing, and triage.

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What it does

Superhuman is a paid email client that layers a fast, keyboard-driven interface and deep AI features on top of an existing Gmail or Microsoft 365 account. Rather than processing email through the standard Gmail or Outlook web interface, users work inside Superhuman’s own app, which adds AI-generated draft replies, thread summaries, and automatic labeling on top of the underlying inbox.

The product is positioned for people who send and receive a high volume of email and are willing to invest time learning shortcuts for long-term speed gains. In mid-2025, Superhuman was acquired by Grammarly, and the combined company has since rebranded around a broader “Superhuman Suite” of productivity tools — worth factoring in when evaluating long-term product direction, not just current features.

Ideal users

  • Sales professionals, founders, and executives who live in their inbox and want the fastest possible email experience
  • Power users willing to learn keyboard-shortcut-driven workflows for long-term speed gains
  • Teams that want AI drafting matched to each contact's tone plus CRM sync (HubSpot, Salesforce, Pipedrive)

Who should avoid it

  • You want a free or low-cost option — Superhuman has no ongoing free plan for Mail access and starts at $40/month (Business tier)
  • You'd rather keep using Gmail or Outlook's native interface than adopt a new client
  • You need a lightweight add-on rather than a full inbox replacement — consider Fyxer or SaneBox instead

Key features

  • AI-powered Auto Drafts and Ask AI, including per-contact voice matching on the Business plan
  • AI Summarize condenses long threads into bullet points
  • Instant Reply and Instant Event AI shortcuts for fast responses and scheduling
  • Custom Auto Labels and Auto Archive for hands-off inbox organization
  • 100+ keyboard shortcuts and a split-inbox view built for speed
  • CRM integrations with HubSpot, Salesforce, and Pipedrive on Business tier

Pros

  • Widely regarded as one of the fastest email clients available, with a genuinely different feel from stock Gmail/Outlook
  • AI features are deeply integrated rather than bolted on, and adoption among users is high
  • Works on top of existing Gmail or Microsoft 365/Outlook accounts — email stays on the original provider's servers

Cons

  • No permanent free plan for Mail access — among the most expensive options in this category
  • Requires learning a new interface and keyboard-shortcut-driven workflow
  • Deepest AI features (Auto Drafts, Ask AI, CRM sync) are reserved for the pricier Business tier

Pricing

Paid — $40/month (Business, billed monthly — the entry tier for Mail access)

Confirmed directly on superhuman.com/plans, July 2026: the standalone Starter tier for Mail access has been discontinued for new signups. The Free and Pro tiers now cover only Grammarly's writing features and do not include Superhuman Mail; full Mail access requires the Business tier at $40/month or $396/year (~$33/month billed annually), which bundles Auto Drafts, Ask AI, custom auto-labels, and CRM integrations with HubSpot, Salesforce, and Pipedrive. Enterprise remains custom-quoted.

Typical workflows

  • A sales rep connects their Gmail account, uses Auto Drafts to generate replies in their own voice for routine prospect emails, and relies on Ask AI plus Auto Summarize to catch up on long threads before calls.

Integrations

  • Gmail and Google Workspace
  • Microsoft 365 / Outlook
  • HubSpot, Salesforce, and Pipedrive (Business plan)

Privacy & security notes

Superhuman connects to and displays your existing Gmail or Microsoft 365 account rather than migrating your email elsewhere; the underlying messages remain on Google's or Microsoft's servers. Under the post-acquisition Superhuman Platform Inc. (formerly Grammarly) privacy policy, account content can be used to train Superhuman's AI models by default, but users can turn this off in account-level training controls, and Superhuman contractually restricts its third-party AI providers from training on customer content.

Frequently asked questions

Do I need a new email address to use Superhuman?

No. Superhuman connects to your existing Gmail or Microsoft 365/Outlook account and acts as an alternative interface with its own AI features and shortcuts — your address and mail server don't change.

Is Superhuman still an independent product after the Grammarly acquisition?

Grammarly acquired Superhuman in mid-2025 and later renamed its parent company to Superhuman, bundling the email client with Grammarly's writing tools and other products into a 'Superhuman Suite.' The email client itself continues to operate, but buyers should expect the product and pricing structure to keep evolving as the integration continues.

Is Superhuman worth the price compared to free alternatives?

It depends on email volume and how much you value speed. For high-volume users like sales reps or founders, the time saved on drafting and inbox processing can justify the cost; for lighter email users, free AI features already built into Gmail or Outlook, or a lower-cost add-on like SaneBox, may deliver most of the practical benefit.

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