Jack Dorsey has launched Buzz, a new platform that integrates team chat, AI agents, and Git hosting. The product aims to combine communication, AI assistance, and code management in a single tool.
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Buzz positions itself as a challenger to Slack and GitHub, placing humans and AI agents in the same conversation, emphasizing model-agnostic, decentralized, self-sovereign, and open-source principles. However, its early stage and lack of ecosystem are its biggest uncertainties.
On July 21, 2026, Twitter and Block co-founder Jack Dorsey announced Buzz, a group chat platform for teams and AI agents, directly challenging Slack and GitHub. According to TechCrunch, Buzz is developed by Dorsey's company Block, which also operates Square, Cash App, Afterpay, and Tidal.
Buzz's core value lies in placing humans and AI agents in the same conversation and integrating GitHub project management, thereby reducing reliance on Slack and GitHub. Its website describes it as 'model-agnostic, decentralized, self-sovereign, open-source.'
Because it is open-source, developers can self-host Buzz instances, customize features according to team needs, and even deploy new features themselves.
Buzz is not the only project exploring AI-native Slack alternatives. Paradigm partner and CTO Georgios Konstantopoulos released a similar open-source product, Centaur, on May 21, 2026, positioned as a 'virtual employee' that can run inside Slack or be called via API. Konstantopoulos emphasized that in enterprise environments, self-hosting is crucial for security and control.
TechCrunch notes that as startups increasingly rely on AI agents to get work done, cross-platform collaboration becomes difficult. Buzz's utility lies in consolidating multiple workflows into a single workspace.
Buzz's free desktop app is already available for macOS, Windows, and Linux, with code uploaded to GitHub. However, Buzz itself acknowledges it is in an 'early stage,' and TechCrunch accordingly advises teams not to migrate immediately.
For emerging AI agent startups not yet deeply tied to Slack, Buzz or its competitors are worth exploring.
This article is primarily based on a TechCrunch report, which cites Jack Dorsey's X post and Buzz's official website. All descriptions of product features, positioning, and status come from these primary sources. Information about Centaur comes from Konstantopoulos's X post. Buzz's 'early stage' statement comes from its website, and TechCrunch provides adoption recommendations based on that.
Buzz represents a new direction for AI agent collaboration platforms, but its early stage and lack of ecosystem make it unlikely to disrupt Slack in the short term. For new teams seeking AI-native collaboration tools, it is worth watching; for existing Slack users, migration risks are high.
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