The upgrade follows its acquisition of productivity startup Coda last year, which now powers the new block-style interface.

The redesigned workspace allows users to build documents with tables, lists, headers, and rich formatting options. It also integrates a sidebar assistant that can answer questions, summarise content, and suggest improvements. 

Beyond these, Grammarly has embedded a collection of specialised agents that tackle specific writing challenges.

Among the tools are:

• AI Grader, which reviews work against academic rubrics and available course materials, offering feedback and estimated grades.
• Citation Finder, which locates credible sources and generates citations in multiple styles.
• Reader Reactions, which predicts how different audiences such as professors, clients, or managers might interpret a piece of writing.
• Paraphraser, which adjusts tone and style to match a target audience.
• Plagiarism Checker and AI Detector, both designed to flag unoriginal work and identify machine-generated text.
• Expert Review, which provides domain-specific guidance.

Luke Behnke, Grammarly’s vice president of Enterprise Product, addressed the controversy around detecting AI-written text. “The goal here is not to provide an enforcement mechanism for teachers. If teachers want to enforce policies, they should use our authorship tool. But this [AI detector tool] is about providing a window to students into what could be AI-generated text in their writing before they submit,” he said.

The company frames the update as part of a wider effort to balance creation and accountability. While it now offers tools that can help students write with AI, it also equips them to identify when their work may lean too heavily on machine input. 

Grammarly says this approach reflects what it calls a “moral imperative” to prepare students for the realities of the workplace.

The redesign comes after a period of aggressive expansion. In May, Grammarly secured $1 billion in funding from General Catalyst to drive acquisitions and grow its enterprise reach. More recently, it acquired Superhuman, an AI-powered email client, noting plans to extend its influence into communication workflows.

With more than 40 million active users and integrations across Google Docs, Outlook, Slack, and other platforms, Grammarly is positioning itself as a full productivity suite. 

Its latest changes set it up to compete directly with platforms like Notion, Microsoft Copilot, and Google Workspace Duet, all of which are racing to embed smart writing assistants into everyday workflows.

The deal reveals Grammarly’s intent to stake its claim in enterprise productivity, placing it in direct competition with Microsoft 365 and Google Workspace.

Per Reuters, the financial terms of the transaction were not disclosed. However, Superhuman was last valued at $825 million in 2021 and currently generates an estimated $35 million annually. 

With over $110 million in venture funding behind it, from names like Andreessen Horowitz and IVP, Superhuman had built a reputation for exclusivity and speed, with features that reportedly helped users send and respond to 72% more emails per hour.

Grammarly, founded in 2005, has gone beyond a grammar tool. After raising $1 billion in non-dilutive funding from General Catalyst in May 2025, the company is transforming into a full-fledged productivity platform. 

The acquisition of Coda in late 2024 laid the foundation for AI-powered collaboration, and Superhuman now brings email into the mix.

This acquisition also reveals an organisational change. Rahul Vohra, Superhuman’s CEO, will now join Grammarly’s leadership team, bringing along over 100 Superhuman employees. Yet Superhuman won’t be absorbed entirely. “The Superhuman product, team, and brand will continue,” said Grammarly CEO Shashir Mehrotra. 

“It’s a very well-used product by tens of thousands of people, and we want to see them continue to make progress.”

The two companies have an aligned vision of integrating Grammarly’s growing suite of productivity agents into Superhuman. These AI-powered tools are designed to help users summarise threads, generate replies, extract insights from documents, and sync with calendars, all from within the email client.

Vohra described the deal as a catalyst for growth: “This gives us significantly greater resources and allows us to invest more deeply in AI, calendars, tasks, and collaboration.”

With this, Grammarly is placing itself at the centre of a new development where AI assistants that function seamlessly across workflows, including email, documents, calendars, and beyond. 

Superhuman will be a testbed for this integration, potentially redefining what a modern email platform can do.

Nonetheless, the email space has become very competitive, with Google’s Gemini-infused Gmail and Microsoft’s Copilot for Outlook evolving fast. Startups like Shortwave and Missive are also moving speedily, embedding smart features directly into inboxes.

But Mehrotra is undeterred. “Email continues to be the dominant communication tool for the world. Professionals spend something like three hours a day in their inboxes. It’s by far the most used work app, foundational to any productivity suite,” he said.

What began as a premium, invite-only service targeting high-performance professionals now finds itself backed by one of the most widely used writing tools on the planet.

Grammarly, with over 40 million daily users and $700 million in annual revenue, is no longer content playing in the margins.