Block, led by Jack Dorsey, has released 'Berd,' an AI agent app that allows users to assign characters to AI agents and collaborate with them.

Block, led by Twitter co-founder Jack Dorsey, has released an AI agent app called Berd . Berd allows you to manage multiple AI agents as characters to perform tasks.

Berd — Less chatting, more building.

We often build the tools we need ourselves. Berd is the desktop application our teams use to work with AI agents across projects, skills, tools, and models. Today, we're making it open source and sharing what we've learned. Meet Berd, AI with character: https://t.co/0RMZlKZP8P

— Block (@blocks) August 18, 2026

what's the word, https://t.co/iTe4OIcV71

— jack (@jack) August 18, 2026

This is what the Berd screen looks like. Multiple characters are displayed along with task lists, notes, and more.

Each character is assigned tasks as an AI agent. While it's common for AI agent apps to run multiple AI agents simultaneously, Berd allows you to manage each agent by giving them a distinct character appearance.

The agent management screen looks like this. You can enter tasks and also switch between models.

Berd is being developed as an open-source project, and you can view the source code at the following link.

GitHub - block/berd: a desktop app for getting work done with any model · GitHub
https://github.com/block/berd