At Superhuman, we set out to build the most productive email experience ever made.

Our customers now get through their email twice as fast as before, reply 1-2 days sooner, and save more than 4 hours every single week. Together, they’ve sent over 500 million messages, triaged over 2 billion conversations, and used a whopping 6 billion shortcuts! See more on our Wall of Love.

I am beyond thrilled to announce our next chapter: Superhuman is being acquired by Grammarly. 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. More below…

Superhuman & Grammarly 💜

I met Shishir Mehrotra — co-founder of Coda, and now the CEO of Grammarly — back in 2017.

I had just onboarded him onto Superhuman. As he closed Gmail, another tab caught my eye: an app called Krypton. I asked what it was. Shishir then gave me the best product demo I had seen in years!

Krypton became Coda, and Coda became the collaborative document of choice for tens of thousands of teams and millions of users. In late 2024, Grammarly acquired Coda, and Shishir became the new CEO.

In their acquisition announcement, Shishir wrote: “As I watched the foundational capabilities of AI change how just about every tool and surface operates, I started drafting my 2025 planning memo for the team. I titled it: the AI-native productivity suite.”

At Superhuman, our vision has always been to build the AI-native productivity suite of choice. Email is a critical part of this suite, and a much bigger problem than most people realize: there are roughly 1 billion professionals in the world, and on average we spend 3 hours a day in email. That's 3 billion hours every single day, or more than 1 trillion hours every year. In fact, we spend more time in email than any other work app.

When I read Shishir’s post, I knew we should catch up.

The AI superhighway ✨

For professionals, email turns out to be the number one Grammarly use case: the assistant helps write over 50 million emails every week. Grammarly itself is extraordinarily popular: it is used by over 40 million people and 50,000 organizations. We used the phrase “hand in glove” more than a few times!

Grammarly also has incredible potential.  At first glance, it is an AI writing assistant. But unlike every other AI assistant, Grammarly works in every app. To pull this off, the team has built integrations with 500,000+ apps and websites — an impressive feat of engineering they call the “AI superhighway.” So far, that AI superhighway has delivered an AI writing assistant. Grammarly is now working on hundreds of task-specific agents, and will use this superhighway to bring these agents to users wherever they work, including — of course — email.

The agentic future of work 🧠

With greater resources, we will now accelerate everything we do. We will invest even more in AI and our core email experience. We will build calendar and tasks, connecting them beautifully together. We will reimagine chat and redefine collaboration. And we will create a new way of working with AI agents.

Email turns out to be the perfect place to work with agents. 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.

We could not be more excited to build the future of work — an AI-native productivity suite, with agentic workflows that are deeply integrated into every part of your day!

Thank you 🙏

I want to share my heartfelt gratitude with every customer, every investor, and every teammate. This is all only possible because of you.

To our customers — thank you for trusting us every day, and for shaping the product into what it is today. Everything that we do, we do for you.

To our investors — thank you for believing in this dream, and supporting us every step of the way. We could not have asked for any more.

To every team member, past and present — thank you for living our values, and for caring so much. What we’ve built is only the beginning, and our very best work lies ahead!

Onwards 🚀
Rahul