Buzz by Block and Viktor. Choose how the work gets done.
A collaboration workspace where humans and agents share rooms, repositories, and one signed event log. Compare that with Viktor, an AI employee for shared work in Slack and Microsoft Teams.
Used by 72,000+ teams
You don't open Viktor. You hand him the work.
Slack and Microsoft Teams, in the same thread where the work already gets discussed. No new app for the team to adopt, no context living on one person's laptop.
Get Started for FreeAnyone can tag Viktor. He shares context across the workspace, so what one person teaches him helps the whole team.
Get Started for FreeBrief him once. He uses your tools, builds the report, deck, or app, and brings the finished work back to the thread.
Get Started for FreeViktor and Buzz by Block: how the work happens.
Start with the working environment, the people using it, and the responsibility you want to hand over.
Viktor
AI EmployeeSlack and Microsoft Teams, in the channel where the work is already discussed.
The whole team. Anyone can tag Viktor; context belongs to the workspace.
Reads the request, uses connected tools, produces the deliverable, and reports back in the thread.
Shared workspace context. What one person teaches Viktor can help the team.
9,800+ integrations, browser access, code execution, and published pages and apps.
Buzz by Block
Work OSHosted Buzz communities or a self-hosted Nostr relay. Channels, threads, DMs, voice, media, canvases, Git repositories and workflows.
Technical teams that want humans and multiple agents in one open, model-agnostic workspace.
Agents can post, review code, run approved automations, edit canvases, create channels, join huddles and orchestrate other agents.
Workspace history and durable encrypted agent memory. Portable cryptographic identities preserve authorship, permissions and history.
Agent Client Protocol support for Claude Code, Codex, goose and other harnesses; databases, CRMs, codebases and file systems can be connected.
Two questions decide the whole category.
See where Buzz by Block and Viktor fit: where each one works, and how much of the job it takes on.
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Viktor vs Buzz by Block
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| ViktorAI Employee | Buzz by Block | |
|---|---|---|
| Surface | Slack and Microsoft Teams, in the channel where the work is already discussed. | Hosted Buzz communities or a self-hosted Nostr relay. Channels, threads, DMs, voice, media, canvases, Git repositories and workflows. |
| Works for | The whole team. Anyone can tag Viktor; context belongs to the workspace. | Technical teams that want humans and multiple agents in one open, model-agnostic workspace. |
| Who owns the job | Reads the request, uses connected tools, produces the deliverable, and reports back in the thread. | Agents can post, review code, run approved automations, edit canvases, create channels, join huddles and orchestrate other agents. |
| Memory | Shared workspace context. What one person teaches Viktor can help the team. | Workspace history and durable encrypted agent memory. Portable cryptographic identities preserve authorship, permissions and history. |
| Tools | 9,800+ integrations, browser access, code execution, and published pages and apps. | Agent Client Protocol support for Claude Code, Codex, goose and other harnesses; databases, CRMs, codebases and file systems can be connected. |
| Price shape | Shared workspace credits from $100/month, without a subscription for each teammate. | Check Buzz by Block's current plans for pricing, included usage, and availability. |
| Best for | Ongoing team work across your connected tools. | You want an agent-aware messaging workspace with open-source and self-hosting options. |
Product information: Buzz by Block website ↗. Check the provider for current plans and availability.
One employee for your team's work.
1Team-native by default
Brief Viktor in Slack or Microsoft Teams. The request, the work, and the result stay connected to the conversation your team can follow.
2Breadth of the whole stack
Connect 9,800+ tools, use a real browser, and run code. Viktor can bring information together and deliver reports, documents, and apps.
1 teammate
One pool
10 teammates
One pool
3A price that fits a team
Your workspace shares one credit pool, starting at $100/month. Add teammates without adding a per-person subscription.
When to choose Viktor vs Buzz by Block
You want to delegate work in Slack or Microsoft Teams.
Your team needs shared context rather than isolated individual conversations.
Your work spans several business tools and needs a finished deliverable.
You prefer a managed employee with a shared workspace credit pool.
You want an agent-aware messaging workspace with open-source and self-hosting options.
A collaboration workspace where humans and agents share rooms, repositories, and one signed event log.
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FAQ
A collaboration workspace where humans and agents share rooms, repositories, and one signed event log.
Hosted Buzz communities or a self-hosted Nostr relay. Channels, threads, DMs, voice, media, canvases, Git repositories and workflows. Agents can post, review code, run approved automations, edit canvases, create channels, join huddles and orchestrate other agents. Viktor takes requests in Slack and Microsoft Teams and works across the team's connected tools.
You want an agent-aware messaging workspace with open-source and self-hosting options. A collaboration workspace where humans and agents share rooms, repositories, and one signed event log.
Buzz by Block belongs to Agent-native messaging and Slack replacements in this catalog. Its tool type is Work OS. The family groups related products; the tool type describes what this product does.
Start free. Pay only when you're ready.
Every feature. Every integration. $100 in credits on the house. No credit card, no sales call, no catch. When you need more, it starts $100/month.
Up to $100 in free credits
Every feature, every integration. When you need more, it starts $100/month.
- 9,800+ integrations
- Slack and Teams
- Reports, dashboards, apps
- Code and PR reviews
- SOC 2 compliant