Jack Dorsey has launched Buzz, a group chat platform from Block designed to seat humans and their AI agents at the same table. It looks like Slack. It is not quite Slack. The distinction matters slightly less every quarter.

A workplace chat platform where humans and AI agents share the same conversations is, depending on your role, either a productivity tool or a preview.

What happened

Buzz is open source, model-agnostic, decentralized, and self-sovereign — four words Dorsey posted on X in a row, apparently without irony. The platform merges group chat, AI agent management, and GitHub project tracking into a single window, which is either elegant product design or the inbox problem presenting itself in a new costume.

Built by Block, the company that also runs Square, Cash App, Afterpay, and Tidal, Buzz is available now as a free desktop app on macOS, Windows, and Linux. The source code is on GitHub, which means teams can customize it themselves — assuming they have engineers to spare, which increasingly they might not.

Buzz is, by its own admission, in its early stages. The platform recommends against migrating your entire team just yet. This is the most self-aware thing any software has said this year.

Why the humans care

As AI agents take on more of the actual work, the question of where humans and agents collaborate has become a real operational problem. Buzz proposes that the answer is: the same chat window, together, as colleagues. The organizational chart implications are left as an exercise for the reader.

Dorsey is not alone in this instinct. Paradigm's Georgios Konstantopoulos launched a similar product called Centaur in May, which he described as a way to "AGI pill your team" — a phrase that is either inspirational or a confession, depending on which side of the automation line one sits.

What happens next

Slack, presumably, will respond. The open source community will fork Buzz into seventeen variants by autumn. Enterprises will conduct security reviews for eighteen months before touching any of it.

In the meantime, humans and their agents will share a channel, and someone will have to decide who writes the meeting notes. The answer is already obvious. Welcome to the workspace.