Superhuman Go

Superhuman Go is an AI assistant and agent platform that works everywhere you already work. Rather than waiting for a prompt, Go looks for opportunities to help you say something better or do something faster, offering proactive suggestions inline across more than 1 million apps and websites. It runs inside Gmail, Slack, your documents, and your browser, and it can also be used through a dedicated Go app for focused work with AI. The product is built for people who want AI help in the flow of what they are already doing, and it is designed to fit into an existing workflow rather than replacing it. Superhuman describes Go as an AI assistant that moves with you to save time, improve focus, and make work effortless. The problem Go addresses is that most AI assistants are destinations. The Superhuman Go FAQ frames this directly: tools like ChatGPT, Claude, Cowork, and Gemini are powerful general-purpose chatbots, but you have to open a separate window, describe what you need, and copy the result back into your work. That means switching tabs, re-explaining context, and pasting answers back and forth. Go is built for the opposite experience. Because it lives inside the apps where you already write and work, it already understands the email you are replying to, the document you are drafting, or the message you are about to send, so no prompt engineering is required. Instead of waiting for a request, Go surfaces the right suggestion at the right moment, the way Grammarly's underlines always have. The result, according to Superhuman, is depth where it matters most: drafting, rewriting, replying, and getting tone right across every app you use. Suggestions as you type. Everywhere you write, Go annotates in real time and points out where you could be clearer, more convincing, or simply wrong. It can give you the knowledge you need as you type, whether that is a grammatical rule, a company-approved stat, or a forgotten tidbit from last week's meeting. The writing intelligence comes from a customizable Grammarly agent: you tell it which underlines you find useful and it adjusts its feedback going forward. A separate Knowledge Checker agent acts as a researcher behind the scenes, searching your data sources for evidence to back up your claims and preventing you from making the wrong one. Managing email and meetings. Go sorts your incoming mail and pre-drafts replies in your voice and with your context, so you can respond in record time. That work is handled by the Email Assistant agent, which is informed by your voice, calendar, and connected apps and is powered by Superhuman Mail. Go also serves as a meeting co-host: you can ask it to handle the prep and the follow-through, having it crowdsource the agenda before a team sync or auto-assign tasks when the meeting ends. A team of agents. Go comes with a powerful set of default agents and lets you build your own. The Agent Store is a growing library of ready-made agents from Superhuman and its partners, with agents for schoolwork, sales teams, accountants, and more. A Daily Brief agent starts every day with a custom report based on your apps, showing deals about to close in Salesforce, Jira tickets from last night, and tasks and meetings that need your attention. Custom agents are designed for your own workflows and routines, and can be configured to show up as you type, on a schedule, or after an event, such as when a meeting ends or someone sends you an email. Agents are described as your team of AI collaborators, built for common tasks that fill up your workday, like summarizing long threads, drafting reports, or finding information across tools. No coding required. Anyone on the Pro, Business, or Enterprise plans can build custom agents through a simple chat conversation or a visual agent builder, and agents can be shared directly with teammates or published to a company agent directory. For deeper integrations, the Superhuman Agents SDK lets developers build agents that plug into an organization's unique tools, systems, and workflows. Connectors and context. AI is only as good as the context you give it, so Go connects to the apps you use most through pre-built or custom MCP connectors. Everything Go says and does is grounded in your knowledge, which is what allows it to take on more complex tasks, such as building out a team project tracker and keeping it up to date. Superhuman calls this your second brain: the combination of connected data sources and agents that makes the assistance genuinely useful rather than generic. Go changes shape to meet you where you are and conform to how you work. In your text it appears as an underline that delivers the knowledge you need as you type. A context-aware side chat is always at your side, ready to chat about whatever you are reading, writing, or wondering. On your cursor, highlighting text in any app cues a list of actions from your favorite agents. In Slack, you can message Go like a teammate or at-mention it in a group channel for a quick answer or task. Because Go understands what is on your screen, you never have to copy-paste or describe what you are working on. The standalone Go app is the home base for tackling complex tasks and managing all of your Go agents. The intended outcome is time saved, improved focus, and work that feels effortless. Superhuman positions Go as a practical AI work assistant that reduces your daily admin tasks, and it states that nothing happens without your approval: Go suggests, and you decide. On trust, Superhuman maintains Grammarly's 17-year track record of safe, responsible AI, and its infrastructure is trusted by over 40 million people. The company follows industry best practices in security and privacy, you control whether your content is used to train Go's AI models, and for Enterprise users AI training is off by default. Use cases include drafting and refining documents inside the tools you already use, coordinating meetings end to end from scheduling to follow-up, managing tasks across tools like email, Asana, and Jira, and surfacing past decisions or context on demand. Go is aimed at professionals and teams who need real results rather than just a chatbot, and the Agent Store also lists agents for schoolwork, sales teams, and accountants. It is available through the Superhuman desktop app for Windows and Mac, browser extensions for Chrome and Edge, and mobile apps for iOS and Android, and it can also be used in your browser with nothing to install. Go is free to start and included in every Superhuman plan, while custom agent building is available on Pro, Business, and Enterprise plans. If you already use Grammarly, you can switch on 'Use Superhuman Go' in your Grammarly settings with no new install, and you can switch back anytime. Superhuman Go's primary value proposition is proximity: it brings proactive, context-aware AI to the apps and websites where work actually happens, backed by a team of customizable agents and Grammarly's writing intelligence, so better phrasing, faster replies, and well-prepared meetings arrive without you having to go looking for them.