Grammarly Rebrands as Superhuman and Launches AI Assistant Superhuman Go

The company formerly known as Grammarly has rebranded as Superhuman, uniting its writing platform, the Coda collaboration tool, and the Superhuman Mail client into one AI-driven productivity suite. The rebrand follows the company’s acquisitions of Coda in late 2024 and Superhuman Mail in mid-2025.

Alongside the name change, the company introduced Superhuman Go, an AI assistant that operates across connected apps such as Gmail, Google Drive, Jira, and Google Calendar. The assistant can perform contextual tasks like scheduling meetings, fetching data, summarizing notes, or logging support tickets. It is built into the existing browser extension for Chrome and Edge, with desktop versions planned.

Superhuman Go is powered by a network of specialized AI agents available through the new Agent Store. These agents handle tasks such as proofreading, plagiarism detection, and data retrieval from customer relationship systems or internal tools. Developers can also build custom agents using a new software development kit currently in closed beta.

The rebranded Superhuman platform is available now to paying users. Existing Grammarly users retain access to familiar writing features, while gaining new tools through the unified suite. The company plans to expand Go’s capabilities and add more integrated AI functions across its email, document, and collaboration products.