Jack Dorsey, the co-founder of Twitter and Block, has launched a new workplace communication platform called Buzz. The app positions itself as a direct competitor to Slack and GitHub, but with a distinct twist: it integrates AI agents directly into group conversations alongside human team members. Dorsey announced the launch on X (formerly Twitter) on July 21, 2026, describing Buzz as "model-agnostic, decentralized, self-sovereign, and open source."
The platform was built by Dorsey's financial technology company Block, which is already known for products like Square, Cash App, Afterpay, and Tidal. Buzz is now available as a free desktop app for macOS, Windows, and Linux, with its source code uploaded to GitHub. While the app is in its early stages, it represents a significant bet on the future of workplace collaboration, where AI agents play an increasingly central role.
What is Buzz?
Buzz is essentially a group chat platform that looks similar to Slack but adds native support for AI agents. These agents can be assigned tasks, participate in conversations, and manage workflows from the same interface. For instance, a team could use Buzz to collaborate on a GitHub project without switching between apps. The platform's open-source nature means developers can customize it to fit their team's specific needs, building and deploying features directly because they have full access to the codebase.
Dorsey emphasized that Buzz is model-agnostic, meaning it is not tied to any single AI provider. This flexibility allows teams to choose the AI models they prefer, whether from OpenAI, Anthropic, Google, or open-source alternatives. The decentralized and self-sovereign aspects align with Dorsey's long-standing advocacy for decentralized technologies, reminiscent of his work on Bluesky and his support for Bitcoin.
The Growing Trend of AI-Native Workplace Tools
Buzz enters a market that is increasingly recognizing the need for AI-native alternatives or additions to existing tools like Slack. Startups are relying heavily on AI agents to automate tasks, generate code, and manage projects, but collaborating across different platforms can be cumbersome. Buzz aims to consolidate these workflows into one workspace, reducing the dependency on multiple apps.
Another notable product in this space is Centaur, unveiled by Georgios Konstantopoulos, CTO of venture firm Paradigm. Centaur is described as a "virtual employee" that can operate inside Slack or via an API. Konstantopoulos noted that there is significant room for improvement for agents that live inside Slack, especially in enterprise settings where self-hosting is preferred for security and control. Centaur focuses on boosting team productivity by integrating AI agents directly into existing workflows.
For newer startups that are building around AI agents and have not yet established a presence on Slack, Buzz—or its competitors—could be worth considering. However, Buzz itself warns that it is in its "early stages," suggesting that large-scale adoption may not be immediate.
Jack Dorsey's Vision and Background
Jack Dorsey has a history of launching products that challenge established norms. He co-founded Twitter, which revolutionized public communication, and later founded Square, which democratized payment processing. In recent years, he has focused on decentralized systems, including Bluesky, a decentralized social media protocol, and Block's emphasis on Bitcoin and open-source development. Buzz fits into this pattern: it is open-source, decentralized, and designed to reduce reliance on centralized platforms like Slack and GitHub.
Dorsey's involvement in Buzz signals that this is not just a side project. Block, a publicly traded company with a market capitalization in the tens of billions, has resources to support long-term development. However, competing with Slack—owned by Salesforce and deeply entrenched in enterprises—and GitHub—owned by Microsoft and integral to software development—will be a formidable challenge.
Key Features and Implications
Buzz's key differentiators include its open-source license, which allows teams to self-host and customize the platform. This is particularly appealing to companies that prioritize data privacy and security, as they can run Buzz on their own infrastructure. The platform also integrates GitHub project management natively, allowing developers to track issues, pull requests, and commits without leaving the chat interface.
Another feature is the ability for teams to create and deploy their own AI agents within Buzz. Since it is model-agnostic, teams can plug in any AI model that meets their needs. This flexibility could lead to a wide variety of use cases, from automated code reviews to customer support bots that interact with team members.
The rise of AI agents in the workplace is undeniable. According to recent market reports, spending on AI agents is expected to exceed $10 billion by 2027, as companies look to automate routine tasks and augment human productivity. Buzz aims to be the platform that connects these agents with humans in a seamless, collaborative environment.
Competition and Market Landscape
Slack itself has been adding AI capabilities, including Slack AI, which offers search and summarization features. However, Slack's AI is built into the platform and controlled by Salesforce, whereas Buzz puts control in the hands of users. GitHub, meanwhile, has Copilot for code generation, but it is primarily a development tool rather than a communication platform.
Centaur from Paradigm is perhaps the closest competitor, but it focuses on running agents inside Slack, whereas Buzz aims to replace Slack entirely. Other niche tools like Notion AI and Motion also offer AI-powered project management, but none combine group chat, AI agents, and GitHub integration in a single open-source package.
For teams that are deeply embedded in the Slack ecosystem, switching to a new platform like Buzz may be daunting. However, for early-stage startups and tech-forward teams that are already experimenting with AI agents, Buzz offers a compelling alternative that aligns with the principles of decentralization and open source.
As the article notes, Buzz is currently in early stages, so users should expect some rough edges. The free desktop app is available now, and the code is on GitHub for those who want to contribute or self-host. It remains to be seen whether Buzz can gain significant traction against established incumbents, but Jack Dorsey's track record suggests that he is not afraid to bet on ambitious, contrarian ideas.
In summary, Buzz is a bold attempt to redefine workplace communication for the age of AI agents. By merging chat, AI, and project management into one open-source platform, it offers a glimpse of a future where humans and AI collaborate seamlessly. Whether that future arrives quickly or gradually, Buzz has already sparked important conversations about the direction of enterprise software.
Source: TechCrunch News