Channel-based messaging platform for teams with 3,000+ app integrations, workflow automation via Workflow Builder, Slack AI with meeting summaries and reusable AI-Skills, Slack MCP server for AI assistant access, semantic search on Pro+, huddles for quick audio/video, split-view panels, and deep Salesforce CRM integration.
Our take
Slack's March 2026 AI overhaul is genuinely transformative — 30+ new features including reusable AI-Skills that let you define custom tasks for Slackbot once and apply them across contexts, meeting transcription with action-item extraction, and the Slack MCP server that lets external AI assistants (Claude, Cursor) securely query your Slack data. Semantic search on Pro finally understands intent, not just keywords. The split-view panel lets you pin a thread while navigating elsewhere — a small UX win that saves real time. But the pricing story hasn't improved: the free tier's 90-day message history is effectively a trial. Pro at $7.25/seat annual is fair for small teams, but Business+ jumped to $15/seat (from $12.50) in June 2025 while bundling AI features that were previously a $10/seat add-on. For a 100-person company, that's $1,500/mo just for messaging. The Salesforce integration deepens every quarter — CRM data surfaces in channels, deal alerts trigger workflows — making Slack increasingly sticky for Salesforce shops and increasingly unnecessary for everyone else.
Product roadmap
Salesforce is turning Slack into the AI-powered front door for its entire enterprise stack. The MCP server, reusable AI-Skills, and deep CRM integrations signal a future where Slack isn't just messaging — it's an agent orchestration layer. The June 2025 pricing restructure (kill the standalone AI add-on, bundle it into tiers, raise Business+ prices) is the Salesforce playbook: give away features that increase switching costs, charge more for the bundle. Expect deeper Agentforce integration and more AI agents operating autonomously in channels.
Who is Slack for?
Slack for one person is a notification center with no one to notify. The free tier loses history after 90 days, and $8.75/mo for Pro is hard to justify when you're messaging yourself.
Slack's sweet spot. A 10-person team on Pro pays $72.50/mo and gets unlimited history, deep integrations with every SaaS tool, and huddles that replace impromptu meetings. Channel organization keeps context separated better than any email thread.
Still strong but the per-seat cost compounds. A 100-person team on Business+ is $1,500/mo — evaluate whether Teams bundled with M365 at $12.50/user (including Office apps, email, and storage) is a better total deal. Slack wins if your integration stack depends on it.
Enterprise Grid handles multi-workspace orgs with compliance features, but the custom pricing and Salesforce sales process add procurement friction. Slack's advantage at enterprise scale is the integration ecosystem — 3,000+ apps versus Teams' smaller but growing marketplace.
Pricing
Free
Free- • 90-day message history
- • 10 app integrations
- • 1:1 huddles
- • 1 workspace
Pro
$8.75/mo- • Unlimited message history
- • Unlimited integrations
- • Group huddles (50 ppl)
- • Slack AI basic
- • Semantic search
- • Guest access
Business+
$18/mo- • SAML SSO
- • Data exports
- • Advanced Slack AI
- • Custom retention policies
- • 24/7 support
Enterprise Grid
$null/mo- • Unlimited workspaces
- • Org-wide channels
- • HIPAA compliance
- • eDiscovery
- • DLP
- • Dedicated support
Pricing verified 2026-04-16
Ratings
Overall score: 86/100 (composite of the above ratings)
Features
core
ai
collaboration
integrations
Compare Slack with
Founded: 2013
HQ: San Francisco, CA
Company size: 3,000+
Last updated: 2026-04-16