Grammarly acquires Superhuman to accelerate the layout of AI-driven productivity platform

On July 1, 2025, San Francisco time, Grammarly, the world's leading AI writing and grammar checking platform, announced the official completion of the acquisition of Superhuman, an email efficiency tool startup. This strategic acquisition marks a key step in Grammarly's journey to build a full-stack AI productivity suite, aiming to create a more efficient and intelligent digital office ecosystem for users by integrating email processing and AI technology.

Founded in XX, Superhuman has rapidly risen with its AI-driven email classification, automated replies and intelligent writing functions with the mission of "reshaping the email experience". Its products were once known for their queuing access mechanism, with a valuation of US$825 million in 2021 and annual revenue of approximately US$35 million. This acquisition will help Grammarly break through the traditional grammar proofreading scope and expand to the core office scenario of email management. Grammarly CEO Shishir Mehrotra said: "Email is the cornerstone of global workplace communication, and professionals spend more than 3 hours a day processing emails. Superhuman's technology and user base will strengthen Grammarly's leading position in the field of productivity tools and accelerate our vision of building the next generation of AI office platform." After the acquisition is completed, the Superhuman team will be integrated into Grammarly as a whole, including CEO Rahul Vohra and more than 100 technical elites. The two parties plan to deeply integrate AI capabilities: Grammarly's grammar optimization and writing engine will be seamlessly connected with Superhuman's email processing algorithm to achieve full intelligence from email writing to management. For example, users can use Grammarly's AI agent to summarize the key points of the email, generate draft replies, and use Superhuman's efficient interface to achieve batch processing. Vohra pointed out: "After joining Grammarly, we will have more sufficient resources to invest in AI research and development, expand into tools such as calendar management and task collaboration, and build a more complete office ecosystem." This acquisition is the latest milestone in Grammarly's diversification strategy. Last year, the company acquired the document collaboration platform Coda for $XX billion, gaining AI data analysis and team collaboration capabilities. The company's successive deployment in the email and document fields reflects its ambition to transform from a single tool to an "AI productivity platform." However, as technology giants such as Google and Microsoft strengthen the AI ​​functions of their email products, industry competition is becoming increasingly fierce. Mehrotra said frankly: "The AI ​​productivity tool track is full of challenges, but the combination of Grammarly and Superhuman will form a differentiated advantage - saving users time and improving decision-making efficiency through deep optimization of vertical scenarios and cross-tool collaboration."

Grammarly's long-term goal is to connect the data of tools such as emails, documents, and calendars through an AI agent network to build an "intelligent workflow." For example, users can authorize AI agents to automatically extract key information from emails, generate reports or task lists, and even coordinate meeting arrangements across platforms. If this vision is realized, it will subvert the traditional office model, allowing users to get rid of trivial operations and focus on creative work. At present, Grammarly has more than 40 million daily active users and annual revenue of US$700 million. Combined with Superhuman's B-side customer resources and technological innovation, the market penetration rate of its AI platform is expected to rise further.

As AI technology reshapes all industries, the collaboration between Grammarly and Superhuman is not only a business merger, but also an innovative exploration of digital office efficiency. With the integration of resources and the advancement of product development, the two parties may redefine the boundaries of "productivity tools" and bring unprecedented intelligent experience to professionals around the world.