Jack Dorsey is taking on Slack with Buzz, a group chat platform for teams and their AI agents
techcrunch.com Jul 21, 2026

Jack Dorsey is taking on Slack with Buzz, a group chat platform for teams and their AI agents

AI-summarised brief · reviewed before publication

Jack Dorsey, co‑founder of Twitter and Block, unveiled Buzz on Tuesday, a new group‑chat platform aimed at workplaces. Buzz combines human conversation with AI agents in a single interface and is positioned as an alternative to Slack and GitHub. Dorsey described the service on X as model‑agnostic, decentralized, self‑sovereign and open source. Built by Block, the app runs on macOS, Windows and Linux and its source code is hosted on GitHub, allowing teams to self‑host and customize features. By integrating AI workflows and GitHub project management, Buzz seeks to consolidate disparate tools into one workspace. The product is still in early stages, and a free desktop client is now available for download. Early adopters can test extensions and give feedback.

💡 Why It Matters

  • · Buzz lets enterprises replace proprietary SaaS chat tools with a customizable, self‑hosted hub that embeds AI agents directly into their workflow.