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Grammarly Acquires Superhuman: Supercharging AI for Email

Cansin Cengiz

01 Jul 2025 — 2 min read

Grammarly Acquires Superhuman: Supercharging AI for Email

In a significant move to bolster its artificial intelligence (AI) productivity suite, Grammarly recently announced its acquisition of Superhuman, the popular AI-powered email client. While the financial terms of the deal remain undisclosed, this strategic acquisition underscores Grammarly's commitment to integrating advanced AI capabilities directly into the core of professional communication – email.

Superhuman, founded by Rahul Vohra, Vivek Sodera, and Conrad Irwin, had previously raised over $114 million in funding from notable investors like a16z, IVP, and Tiger Global, achieving a last valuation of $825 million.

A Strategic Leap into AI-Powered Communication

The acquisition is set to transform how professionals interact with email, leveraging Superhuman's technology to create a more intelligent and efficient communication experience. Shishir Malhotra, CEO of Grammarly, highlighted the pivotal role of email in the professional landscape:

“With Superhuman, we can deliver that future to millions more professionals while giving our existing users another surface for agent collaboration that simply doesn’t exist anywhere else. Email isn’t just another app; it’s where professionals spend significant portions of their day, and it’s the perfect staging ground for orchestrating multiple AI agents simultaneously.”

Rahul Vohra, CEO of Superhuman, echoed this sentiment, emphasizing the collaborative potential:

“Email is the main communication tool for billions of people worldwide and the number-one use case for Grammarly customers. By joining forces with Grammarly, we will invest even more in the core Superhuman experience, as well as create a new way of working where AI agents collaborate across the communication tools that we all use every day.”

As part of the deal, Vohra and several Superhuman employees will transition to Grammarly, bringing their expertise in AI-driven email innovation.

Superhuman's AI Prowess and Grammarly's Vision

Superhuman has been at the forefront of integrating AI into email workflows, having recently introduced features designed to streamline daily tasks:

AI-powered scheduling assistance
Instant AI-generated replies
Intelligent email categorization to reduce inbox clutter

Grammarly's vision is to utilize Superhuman's technology to develop sophisticated AI agents specifically for email, recognizing it as a primary use case for its vast user base.

Grammarly's Expanding AI Ecosystem

This acquisition is part of a broader strategic expansion for Grammarly in the AI productivity space. Last year, Grammarly acquired collaborative productivity software Coda, a deal that also saw Coda’s co-founder, Shishir Malhotra, step into the CEO role at Grammarly.

Further demonstrating its robust growth and investment in AI, Grammarly also secured a significant non-dilutive investment of $1 billion from General Catalyst in May 2025. This funding model allows Grammarly to expand without diluting equity, reinforcing its financial strength and commitment to innovation.

The acquisition of Superhuman positions Grammarly to redefine productivity and communication, pushing the boundaries of what AI can achieve in professional tools.