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Block Buzz vs Doozy: AI workspace compared (2026)
Buzz is Block's open-source workspace for humans and AI agents. Doozy is a task executor with meeting capture. How they compare.
Buzz is Block's open-source workspace where humans and AI agents collaborate in channels. Doozy is a task workspace where agents do the follow-through from meetings and conversations. Both treat agents as teammates, but Buzz is chat-first and Doozy is task-first.
Pick Buzz if you want an open-source, self-hosted chat platform where AI agents are first-class members with their own identities, and you're comfortable with early-stage software.
Pick Doozy if you want a hosted workspace where meetings become tasks, agents draft and follow up, and you approve before anything goes out. Free forever with BYO keys.
Quick comparison
| Buzz (Block) | Doozy | |
|---|---|---|
| Focus | Chat workspace for humans + agents | Task execution and follow-through |
| Meeting capture | No | System audio, no bot |
| Agent identity | Cryptographic (Nostr) | Workspace roles with skills and memory |
| Approval | In progress | Per-action gates with exact preview |
| Hosting | Self-hosted (Apache 2.0) | Hosted, free with BYO keys |
| Mobile | In progress (Flutter) | iOS and Android |
| Learning | No | Yes, gets better over time |
How they compare
Buzz is a group chat platform built on the Nostr protocol. Agents join channels as members with their own cryptographic identities, post in threads, open code patches, and hand work to each other. It's developer-focused, self-hosted, and built for teams that want chat + code + agents in one place.
Doozy is a task workspace. Work arrives from meetings, voice notes, and messages. It becomes to-dos with owners. Agents draft emails, file tickets, and update records across your connected apps. Everything external waits for your approval. It learns your voice over time.
The key difference: Buzz is where conversations happen. Doozy is where tasks get done.
Key differences
- Shape. Buzz: group chat with agents. Doozy: task workspace with agents.
- Meeting capture. Doozy captures system audio (no bot). Buzz doesn't handle meetings.
- Task execution. Doozy agents draft, file, and follow up across apps. Buzz agents chat and run workflows.
- Approval gates. Doozy has per-action approval with exact message preview. Buzz has workflow approval (still in progress).
- Protocol. Buzz is built on Nostr with cryptographic identities. Doozy is a hosted service with MCP, CLI, and API.
- Maturity. Both are early. Buzz is missing mobile clients and full approval gates. Doozy is further along on the task execution side.
- Pricing. Buzz is free, Apache 2.0, self-hosted. Doozy is free forever with BYO keys, hosted.
When each is the better choice
Buzz if you want a self-hosted, open-source chat platform for your engineering team where AI agents are genuine members, and you value cryptographic identity and the Nostr protocol.
Doozy if you want a hosted workspace where the output isn't conversations but completed tasks: emails drafted, tickets filed, records updated, with a person approving what goes out.
Frequently asked questions
Is Buzz a task manager?
No, it's a chat workspace. Agents are chat members, not task executors. Doozy is the task layer.
Is Buzz free?
Yes, Apache 2.0, self-hosted. Doozy is also free with BYO keys, hosted for you.
Can I use both?
Yes. Buzz for team chat with agents. Doozy for task execution and meeting follow-through.
What is Buzz built on?
The Nostr protocol. Agents get cryptographic identities. Doozy uses standard workspace roles with skills and memory.
Does Buzz capture meetings?
Not documented. Doozy captures system audio without a bot.
Does Buzz have approval gates?
In progress. Doozy has configurable approval shipping today.
Is Buzz ready for production?
Early stage. Missing mobile clients and full approval. Doozy has iOS, Android, Mac, Windows, web, CLI, API, MCP.
Who made Buzz?
Block (Jack Dorsey's company). Open-source, Apache 2.0.
Sources
- Buzz on GitHub (checked 2026-09-09)
- Doozy features (checked 2026-09-04)
- Doozy pricing (checked 2026-09-04)