Grammarly announced on Tuesday that it will acquire Superhuman, a leading email productivity startup, to expand its AI-driven workplace tools and enhance its productivity suite. This acquisition marks a major step in Grammarly’s evolution from a grammar correction tool to a comprehensive AI productivity platform.
Grammarly expands AI productivity suite with Superhuman email tools
Grammarly, founded in 2009 and used daily by over 40 million people, generates more than $700 million in annual revenue. Its recent $1 billion funding round from General Catalyst has fueled ambitions to broaden its AI offerings beyond writing assistance.
Superhuman, valued at $825 million in 2021, currently earns around $35 million annually and is known for its sleek email client that helps users send and respond to 72 percent more emails per hour, with AI-generated email composition increasing fivefold in the past year.
Grammarly CEO Shishir Mehrotra explained, “Email remains the dominant mode of communication for professionals, with many spending close to three hours a day in their inboxes. It’s foundational to any productivity suite, and Superhuman is clearly the leading innovator in this space.”
He added that integrating email tools is a natural progression after Grammarly acquired Coda last year, which laid the groundwork for AI agents assisting with research and collaboration.
Superhuman joins Grammarly to boost AI innovation in communication
Superhuman CEO Rahul Vohra and over 100 employees will join Grammarly, but the Superhuman product and brand will continue to operate independently under Grammarly’s umbrella.
Vohra said, “This partnership gives us access to significantly greater resources, enabling us to invest deeper into AI and expand our product capabilities into calendars, tasks, and collaboration tools.” He emphasized that email is the primary communication tool globally and that joining forces with Grammarly will allow them to create new AI-driven ways of working across communication platforms.
Grammarly plans to use Superhuman’s technology to develop AI agents that collaborate across emails and other digital workflows. This move will help users reduce time spent searching for information or drafting replies, positioning Grammarly to compete with other AI productivity tool providers such as Google, Microsoft, and Salesforce.
The financial terms of the deal were not disclosed, but the acquisition follows Grammarly’s recent significant funding and signals its ambition to become a leading AI productivity platform by integrating email, writing, and collaboration tools into one seamless experience.