Grammarly To Buy AI-Native Email App Company Superhuman

By Amit Chowdhry • Jul 2, 2025

Grammarly has announced its intention to acquire Superhuman, an AI-driven email application designed to help users respond to emails one to two days faster and save four hours each week on their email communications. This deal marks a significant step forward in Grammarly’s evolution into an AI-based productivity platform for apps and agents, underscoring the importance of email in the company’s vision for a future driven by agents.

While AI has the potential to transform work and enhance productivity immediately, many technology providers have added AI features to existing tools. This practice has fragmented an already chaotic tech ecosystem, making it more difficult for professionals. So productivity remains stagnant, software investments yield poor returns, and companies struggle to keep pace with competitors who have found superior solutions.

Grammarly delivers writing assistance to users across over 500,000 applications and websites. With this acquisition, Grammarly aims to create a comprehensive productivity platform with more agents that can handle various tasks, bringing AI directly to users in all their work environments.

Email is the primary use case for Grammarly among professionals, with the AI assistant helping to revise more than 50 million emails each week across over 20 email providers, including Gmail, Outlook, Apple Mail, and Superhuman.

The acquisition of Superhuman offers more than just productivity improvements. Building on its reputation as a popular product with substantial user adoption, Superhuman is shaping the future of email and evolving into a holistic workspace for agents.

With 94% of weekly active users embracing AI, the measurable productivity gains are significant: users already send and respond to 72% more emails per hour after using Superhuman compared to before. Now, imagine enhancing this efficiency even further with AI agents that can sort your inbox, schedule meetings, conduct thorough research on your content, and draft complete emails in your voice and tone. Picture these agents reasoning, solving problems, incorporating detailed context about your work, and interacting seamlessly with other systems and agents.

The acquisition aligns with Grammarly’s broader vision of creating applications that act as intelligent agents collaborating with users. Combined with the company’s recent acquisition of Coda, which provides a workspace for managing agents to research, analyze, create, collaborate, and share information, Superhuman completes a crucial aspect of the productivity puzzle.

Grammarly is transitioning into a productivity platform that encompasses both apps and agents, aiming to become a multi-product company with hundreds of intelligent, task-specific agents. Email is the ideal environment for this multi-agent assistance, as professionals spend over three hours daily in their inboxes, making email a foundational element of any productivity suite.

The future platform will enable users to work with multiple agents simultaneously. For instance, while drafting a customer memo, a user could employ Grammarly’s trusted communication agent for spelling and grammar checks, a sales agent to verify sales facts, a support agent to provide context on recent customer issues, and a marketing agent to suggest optimal feature positioning.

KEY QUOTES:

“This is the future we’ve been building toward since day one: AI that works where people work, not where companies want them to work. 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.”

Shishir Mehrotra, CEO of Grammarly

“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. These kinds of agents will free us all up to be more creative, strategic, and closer to achieving our human potential.”

Rahul Vohra, CEO of Superhuman