Grammarly Acquires Superhuman for AI-Native Productivity Suite

In late May, Grammarly raised $1 billion in financing to help expand its business into a full AI productivity platform. Today, it took the next major step on that path by acquiring Superhuman, the makers of an AI-native email service. The goal? To create an in-house “Little Tech” alternative to Big Tech solutions like Microsoft 365 and Google Workspace and emerging new competitors like Notion.

“I am beyond thrilled to announce our next chapter: Superhuman is being acquired by Grammarly,” Superhuman CEO Rahul Vohra writes. “Together, we will build the AI-native productivity suite of choice. We will now accelerate our entire roadmap. We will invest even more deeply in AI and email, build new experiences that transform how we collaborate and communicate, and create AI agents that unlock a whole new way of working.”

The Superhuman acquisition also follows a major shift that Grammarly revealed in December when it acquired Coda, an AI productivity startup that described itself as “Notion on steroids.” At that time, Grammarly replaced its CEO with Coda co-founder and CEO Shishir Mehrotra. In both cases, financial terms were not revealed. But Coda was valued at $1.4 billion in 2021, and Superhuman was valued at $825 million.

According to Superhuman, email is the number one Grammarly use case today, with its assistant helping to write over 50 million messages each week across 40 million people and 50,000 companies. But Grammarly has also worked to integrate its assistant into over 500,000 apps, an engineering feat the company internal describes as an “AI superhighway.” Today, it delivers its AI writing assistant through that highway, but Grammarly is writing hundreds of task-specific agents so diversify and expand. And email is the perfect place to work with agents, Vohra says.

“Imagine an agent triaging your inbox before you wake up; another agent drafting responses in your own voice and tone, incorporating detailed context about you and your work; while another agent surfaces insights, schedules meetings, and interacts with other agents and your systems of record,” he writes.

As for Superhuman, Vohra says that the company can now create calendar and tasks, “reimagine” chat, “redefine” collaboration, invest more in the core email experience, and connect them all together.