Slack
Channels & threads
CoveredTopic-based channels with threaded replies.
Why it matters. Keeps conversation organized instead of one firehose.
On Borg. Buzz supports channels, threads, and direct messages, full.
Borg App Hub replaces Slack
Keep the conversation connected.
Give a team, and the AI agents working alongside it, one place to talk, share context, and keep a record of decisions.
Early access for Search Atlas Mastermind and Enterprise.
The Borg collective Team productivity
Buzz
- No per-seat costNo seat count, no seat price.
- Unlimited usageNo video, record, or activity caps.
- Pay only for the AI and compute you useMetered, not per-head.
Workflows to explore
Explore Buzz on Borg
Channels and threads organize conversation by topic instead of one long inbox
Searchable history means decisions and context don't get lost
Thousands of app integrations bring other tools' notifications into chat
Group video calls and huddles replace quick ad hoc meetings
Increasingly used to loop AI agents into the same conversations as people
Feature by feature
Buzz: feature coverage
Review Buzz's covered, partly covered and planned features below.
Direct & group messaging
Covered1:1 and group chats outside of channels.
Why it matters. Covers quick, private conversation.
On Borg. Buzz includes DMs and group messaging, full.
Searchable history
PlannedFull-text search across all messages and files.
Why it matters. Makes old decisions and context findable later.
On Borg. Listed as an active work-in-progress area for Buzz, planned.
App integrations
Partly coveredThousands of third-party apps connect into channels.
Why it matters. Brings alerts and workflows from other tools into chat.
On Borg. Buzz's integration ecosystem is new and smaller than Slack's app directory, partial.
Voice & video calls
Partly coveredBuilt-in huddles and group video calls.
Why it matters. Replaces quick meetings without leaving the app.
On Borg. Voice and media sharing are listed features; full video calling is still maturing, partial.
AI agent participation
CoveredLets AI agents post, react, and run workflows alongside people.
Why it matters. Keeps humans and agents in the same conversation and context.
On Borg. This is Buzz's core design: every agent gets its own signed identity and channel membership, full.
Admin controls (SSO, audit logs, compliance exports)
PlannedCentral login, audit trails, and compliance data exports.
Why it matters. Needed for IT governance and regulated industries.
On Borg. Relay membership and access are enforced by default; formal SSO/SCIM and compliance exports are listed as still coming, planned.
Some upstream apps gate certain features behind their own licenses; the coverage chips above say where.
The math
Borg and Slack: compare the costs
Slack per seat per month
| Plan | Price | Limits |
|---|---|---|
| Free | $0 | 90 days of message history, up to 10 app integrations, 1:1 external collaboration and meetings only. |
| Pro | $7.25/user/mo billed annually (~$8.75/mo billed monthly) | Unlimited history and app integrations, group meetings. |
| Business+ | $15/user/mo billed annually (~$18/mo billed monthly) | Advanced AI features, 99.99% uptime SLA, compliance data exports, SCIM provisioning. |
| Enterprise+ | $45/user/mo billed annually | Unlimited workspaces, enhanced security and compliance, custom quote required. |
- Free plan keeps only 90 days of message history and caps app integrations at 10
- Unlimited history and integrations start on the $7.25-8.75/mo Pro plan
- Compliance exports, SCIM provisioning, and a 99.99% uptime SLA require Business+ or higher
Public pricing checked 2026-10-07. Source
Buzz on Borg App Hub
$0 per seat
- Unlimited usage, no caps
- Metered AI + compute, billed to actual use
- Runs inside a workspace you control
For comparison: A 20-person team on Business+ pays about $15/user/month billed annually, roughly $3,600/yr, before Enterprise+ pricing.
Questions
Questions about Buzz
What does Slack cost for a 20-person team?
On Business+ it's about $15 per user per month billed annually, roughly $3,600 a year for 20 seats, before Enterprise+ pricing (slack.com/pricing, checked 2026-10-07).
Is there a free, open-source Slack alternative?
Yes. Buzz is a free, open-source (Apache-2.0) chat workspace released by Block in 2026, and it can be self-hosted.
Why do teams look for Slack alternatives?
Common reasons are the free plan's 90-day history limit, per-seat pricing that rose after Salesforce's 2026 changes, and features locked behind paid tiers.
What makes Buzz different from Slack?
Buzz gives AI agents their own signed identity and channel membership alongside people, which Slack wasn't originally built for.
Does Buzz have Slack's search and compliance features yet?
Not fully. Full-text search, SSO, and compliance exports are listed as still in progress.
Can Buzz replace Slack's video calls?
Partially. Buzz lists voice and media sharing as features, but its video-calling experience is newer and still maturing compared to Slack's huddles.
Weighing options? See the full Slack alternatives comparison.
Run Buzz without the seat tax.
One App Hub, every tool your team already reaches for. No per-seat cost.
Early access for Search Atlas Mastermind and Enterprise.