Best AI tools for email, ranked
All 15 tools across every category, scored on capability, pricing transparency, fit, and traction.
Our top overall picks for 2026: Instantly, Superhuman, Smartlead. Full ranking below.
| # | Vendor | Rating | Pricing | Best for | |
|---|---|---|---|---|---|
| 1 | Instantly Cold Outreach | 9.1/10 | From ~$37/mo | Teams that want unlimited inboxes and deliverability tooling in one platform | Try Instantly → |
| 2 | Superhuman AI Email Client | 9/10 | From ~$30/user/mo | Power users who want the fastest possible email with AI built in | Try Superhuman → |
| 3 | Smartlead Cold Outreach | 8.9/10 | From ~$39/mo | Agencies wanting unlimited inboxes plus white-label and API access | Try Smartlead → |
| 4 | Shortwave AI Email Client | 8.7/10 | Free; paid from ~$7/user/mo | Gmail teams that want an AI assistant living inside email | Try Shortwave → |
| 5 | lemlist Cold Outreach | 8.6/10 | From ~$39/user/mo | Teams that want standout personalization across email and LinkedIn | Try lemlist → |
| 6 | Gmail (Gemini) AI Email Writing | 8.6/10 | Included in many Workspace plans | Anyone on Gmail who wants AI writing with zero new tools | Explore Gmail AI → |
| 7 | Apollo.io Sales Intelligence | 8.5/10 | Free; paid from ~$49/user/mo | Teams that want B2B contact data plus sequencing together | Try Apollo → |
| 8 | Grammarly AI Writing | 8.5/10 | Free; Pro from ~$12/mo | People and teams who want consistent, polished email everywhere they type | Try Grammarly → |
| 9 | SaneBox Inbox Triage | 8.4/10 | From ~$7/mo | People who want AI triage without switching email apps | Try SaneBox → |
| 10 | Outlook (Copilot) AI Email Writing | 8.4/10 | Copilot add-on (~$30/user/mo) | Microsoft-anchored teams that want AI in Outlook and the whole suite | Explore Outlook Copilot → |
| 11 | Reply.io Sales Engagement | 8.2/10 | From ~$49/user/mo | Teams that want an AI SDR layered on multichannel outreach | Try Reply.io → |
| 12 | Spark Mail AI Email Client | 8.1/10 | Free; Premium from ~$8/user/mo | Teams that want shared inboxes and AI writing across devices | Try Spark → |
| 13 | Missive Team Inbox | 8/10 | Free; paid from ~$14/user/mo | Teams that run shared mailboxes and want collaboration plus AI | Try Missive → |
| 14 | Jasper AI Marketing Writing | 8/10 | From ~$39/user/mo | Marketing teams that want on-brand email and campaign copy | Try Jasper → |
| 15 | Mailchimp (AI) Email Marketing | 7.9/10 | Free; paid scales with contacts | SMBs that want marketing email plus AI content and optimization | Try Mailchimp → |
Teams that want unlimited inboxes and deliverability tooling in one platform
Try Instantly →Power users who want the fastest possible email with AI built in
Try Superhuman →Agencies wanting unlimited inboxes plus white-label and API access
Try Smartlead →Gmail teams that want an AI assistant living inside email
Try Shortwave →Teams that want standout personalization across email and LinkedIn
Try lemlist →Anyone on Gmail who wants AI writing with zero new tools
Explore Gmail AI →Teams that want B2B contact data plus sequencing together
Try Apollo →People and teams who want consistent, polished email everywhere they type
Try Grammarly →Microsoft-anchored teams that want AI in Outlook and the whole suite
Explore Outlook Copilot →Teams that want an AI SDR layered on multichannel outreach
Try Reply.io →Teams that want shared inboxes and AI writing across devices
Try Spark →Teams that run shared mailboxes and want collaboration plus AI
Try Missive →Marketing teams that want on-brand email and campaign copy
Try Jasper →SMBs that want marketing email plus AI content and optimization
Try Mailchimp →Browse by category: AI Inbox · Cold Outreach · AI Writing