
Block co-founder Jack Dorsey has introduced a new AI-powered workplace collaboration platform called “Buzz”, aiming to redefine how teams communicate and work with artificial intelligence. The platform is positioned as a potential competitor to popular workplace tools like Slack and GitHub by combining team conversations, coding collaboration, and AI assistance in a single workspace.
Unlike traditional workplace chat platforms, Buzz allows both human employees and AI agents to participate in the same conversations. Teams can interact with AI assistants that can answer questions, write and review code, summarise discussions, automate tasks, and support everyday workflows.
Announcing the platform on X, Jack Dorsey described Buzz as “model-agnostic, decentralised, self-sovereign, and open source.” According to Block, modern work increasingly involves collaboration between humans and AI agents, and Buzz was created to provide a shared environment where both can work together with common context.
Built on the decentralised Nostr protocol, Buzz offers features including channels, discussion threads, direct messaging, voice communication, media sharing, code repositories, and automated workflows. While its interface resembles existing workplace chat platforms such as Slack and Microsoft Teams, its key difference lies in the integration of AI agents as active participants.
In Buzz, AI agents are designed to have their own identities and permissions rather than functioning as simple assistant tools. These agents can participate in conversations, review code, execute approved automations, and assist team members based on assigned access levels.
Bradley Axen, Head of AI Capabilities at Block, said that every company will eventually need a platform where humans and AI agents can collaborate. He added that the company believes such a system should remain open rather than being controlled by a single proprietary platform.
Buzz uses Nostr’s decentralised communication framework, which relies on cryptographic verification for identities. This allows both users and AI agents to have unique digital identities that are not tied exclusively to Buzz, Block, or any specific AI provider.
The platform is also designed to be flexible, allowing teams to integrate AI agents powered by different technologies, including Claude Code, Codex, Goose, and custom-built systems. Buzz can connect with databases, customer relationship management systems, code repositories, and file storage platforms.
For organisations, Buzz will offer options to either host their own private instances for greater control over data and infrastructure or use Block’s managed version.
Jack Dorsey has stated that Buzz aims to challenge Slack and GitHub by combining workplace communication with AI-driven development tools. With planned Git integration, the platform could allow open-source communities to manage projects, discuss ideas, review code, and work alongside AI agents that assist with software development.
Released under the Apache 2.0 open-source licence, Buzz is positioned as an attempt to create a more open and decentralised future for workplace collaboration, where humans and artificial intelligence work together in the same digital environment.
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