Get Started for Free

7 Best AI Agents for Slack in 2026

Key Takeaways

  • Viktor (free tier + paid): Best overall. 3,000+ integrations, full autonomy, professional deliverables, code execution, proactive automation.
  • Slack AI (included in Business+ at $15/user/mo): Best for searching and summarizing Slack history. No external tool access.
  • Dust (from $29/user/mo): Best for AI-powered internal knowledge management. Limited action-taking.
  • Zapier ($0-69.95+/mo): Best for rule-based automation across 7,000+ apps. No reasoning or AI judgment.
  • Glean (~$50+/user/mo): Best for enterprise search across company knowledge. Primarily read-only.
  • Moveworks (~$100-200/employee/yr): Best for enterprise IT/HR service automation.
  • Aisera (quote-based): Best for IT service desk AI and ticket deflection.

The best AI agent for Slack in 2026 depends on what you actually need it to do. A full-fledged AI coworker that takes real actions across your tool stack? An enhanced search feature? A rule-based automation engine?

We reviewed every major AI agent, bot, and assistant available for Slack. Here's the honest breakdown -- what each one does, what it costs, and where it falls short.

Quick comparison

Agent Best For Integrations Takes Real Actions? Memory Price
Viktor Full AI coworker 3,000+ Yes -- read/write across all tools Persistent, company-specific Free tier + paid
Slack AI Searching Slack Slack only No -- search/summarize only Slack history only Included in paid plans (basics in Pro $7.25/user/mo; full AI in Business+ $15/user/mo)
Dust Internal knowledge Select sources Limited -- mostly Q&A Document-based From $29/user/mo
Zapier Rule-based automation 7,000+ Yes -- predefined workflows only None Free-$69.95+/mo
Glean Enterprise search Enterprise knowledge Emerging agent features Indexed corporate knowledge ~$50+/user/mo
Moveworks Enterprise IT/HR Enterprise IT stack Yes -- ticket resolution Enterprise KB + ticket history ~$100-200/employee/yr
Aisera IT service desk Enterprise IT Yes -- auto-resolution Enterprise KB + incidents Quote-based (enterprise)

1. Viktor -- Best overall AI agent for Slack

Viktor is an autonomous AI coworker that lives in your Slack or Microsoft Teams workspace. It connects to 3,000+ business tools with real read/write access and does actual work: pulls data, creates reports, manages campaigns, writes code, builds web apps, and delivers professional outputs. Each Viktor instance runs on its own persistent cloud computer -- a full Linux sandbox with shell access, file system, and execution environment.

What sets Viktor apart:

  • 3,000+ integrations with real read/write access. Stripe, HubSpot, Meta Ads, Google Ads, Notion, Linear, GitHub, PostHog, and more. One message can span multiple tools.
  • Professional deliverables. Board-ready PDFs with charts and tables, Excel financial models, PowerPoint decks, videos (Remotion), full-stack web applications (Viktor Spaces with Convex real-time database and custom subdomains).
  • Proactive automation. Viktor observes patterns in your Slack and suggests automations before you ask. "I noticed you pull this report every Monday. Want me to handle it?"
  • Persistent memory. Built on a skills system -- structured markdown files that store knowledge, best practices, and reusable workflows. Viktor learns your company, your tools, your preferences, and your processes. Gets meaningfully better every week.
  • Code execution. Clones repos, writes code, submits pull requests, builds and deploys web apps.
  • Scheduled tasks. Daily digests, weekly audits, monthly reconciliations. Set once, runs forever.
  • Secure by design. Viktor never sees your API keys or OAuth tokens -- credentials are injected by the backend at execution time. Sensitive actions require your explicit approval via a button in Slack before executing.

Pricing: Free tier to start. Paid plans scale with usage.

Limitations: Best suited for teams of 10-50 people.

Best for: Founders and team leads who need analyst, operations, and engineering capacity without hiring for each role.

2. Slack AI -- Best for searching Slack history

Slack AI is Slack's native AI feature set. It focuses on making Slack's own content more accessible through AI-powered search, channel summaries, and thread recaps.

What it does:

  • Search across all Slack messages and files with natural language
  • Summarize channels to catch up on conversations
  • Generate thread recaps
  • Create daily digests of channel activity
  • Suggest replies in DMs

What it doesn't do:

  • Connect to any external tools (no Stripe, no HubSpot, no Google Ads)
  • Take actions outside of Slack
  • Create deliverables (PDFs, spreadsheets, presentations)
  • Run scheduled tasks in external systems
  • Write or execute code

Pricing: No longer sold as a separate add-on. Basic AI features (conversation summaries, huddle notes) are included in Pro ($7.25/user/mo). Advanced AI (search answers, channel recaps, AI-generated digests) requires Business+ ($15/user/mo) or Enterprise Grid. The $10/user/mo AI add-on was discontinued for new customers in July 2025.

Best for: Teams that want better Slack search and channel management. If your problem is "I can't find things in Slack," this works. If your problem is "I need someone to do work across my tools," it won't help.

3. Dust -- Best for internal knowledge management

Dust builds AI assistants that sit on top of your team's knowledge bases -- Notion, Google Drive, Slack, Confluence -- and answer questions based on your internal documents.

What it does:

  • AI-powered search across connected knowledge bases
  • Custom AI assistants tailored to different team functions
  • Integrations with Notion, Google Drive, Slack, and other knowledge sources
  • Natural language Q&A over internal docs

What it doesn't do:

  • Take actions in business tools (no Stripe, no ad management, no code execution)
  • Generate professional deliverables (no PDFs, no spreadsheets)
  • Manage campaigns or automate cross-tool workflows
  • Run proactive or scheduled tasks

Pricing: From $29/user/month.

Best for: Teams that need a smart search layer over their internal knowledge. If your problem is "our team can't find information," Dust is strong. If your problem is "I need someone to do the work," it won't help.

4. Zapier (Slack integration) -- Best for rule-based automation

Zapier connects Slack to 7,000+ apps through trigger-action workflows. It recently added AI-powered features including chatbot-style interfaces in Slack, but at its core, it's a rule-based automation tool.

What it does:

  • Connect Slack to 7,000+ apps via trigger-action workflows
  • "When a message is posted in #support, create a ticket in Zendesk"
  • AI-powered automation suggestions (new in 2025-2026)
  • Chatbot interfaces in Slack via Zapier Interfaces
  • Multi-step Zaps with conditional logic

What it doesn't do:

  • Reason through novel requests ("audit our ad spend" -- it can't)
  • Generate professional deliverables (no PDFs, spreadsheets, presentations)
  • Maintain memory or learn your company
  • Handle tasks it hasn't been pre-configured for
  • Write or execute code

Pricing: Free tier (100 tasks/mo). Starter $19.99/mo. Professional $49/mo. Team $69.95/mo. Higher tiers for volume.

Best for: Predictable, repeatable workflows that follow simple rules. If you can express it as "when X happens, do Y," Zapier is reliable and mature. If you need reasoning, analysis, or novel task handling, it's the wrong tool.

5. Glean -- Best for enterprise search

Glean is an enterprise AI search platform that indexes your company's knowledge across dozens of sources (Google Workspace, Slack, Confluence, Salesforce, etc.) and provides AI-powered search with citations.

What it does:

  • AI-powered enterprise search across all company tools and documents
  • Personalized results based on your role and permissions
  • Slack integration for quick answers
  • Emerging agent features for knowledge-based actions

What it doesn't do (yet):

  • Take actions in business tools (primarily read-only search)
  • Execute code or manage campaigns
  • Generate professional deliverables beyond text answers
  • Run proactive automation or scheduled tasks

Pricing: Not publicly listed. Reports suggest ~$50+/user/month with enterprise minimums.

Best for: Large organizations (200+ employees) needing unified search across their entire knowledge stack. Overkill for small teams. Not designed for action-taking.

6. Moveworks -- Best for enterprise IT/HR automation

Moveworks is an enterprise AI agent focused on IT and HR service automation. It resolves common employee requests (password resets, software provisioning, PTO requests) automatically.

What it does:

  • Auto-resolves common IT/HR requests
  • Connects to identity management, ticketing, and HRIS systems
  • Routes complex issues to the right team
  • Available in Slack and Microsoft Teams

What it doesn't do:

  • Handle non-IT/HR work (no marketing, finance, or general operations)
  • Connect to business tools like Stripe, Meta Ads, or GitHub
  • Generate professional deliverables
  • Work for small teams (enterprise focus, long implementation)

Pricing: Not publicly listed. Reports suggest ~$100-200/employee/year with contract-based enterprise pricing.

Best for: Enterprise companies (500+ employees) with large IT/HR service desk volumes. Not relevant for startups or small teams.

7. Aisera -- Best for IT service desk AI

Aisera provides AI-powered IT service desk automation similar to Moveworks, with auto-resolution of common support tickets and employee requests.

What it does:

  • AI-powered IT service desk with auto-resolution
  • Ticket classification and routing
  • Knowledge base management
  • Slack and Teams integration

What it doesn't do:

  • Handle business operations beyond IT support
  • Connect to marketing, finance, or product tools
  • Generate reports or professional deliverables
  • Work for small teams (enterprise focus)

Pricing: Quote-based. Enterprise rollout with implementation services.

Best for: Enterprise IT departments looking for ticket deflection and automated support.

How to choose

  • You need a full AI coworker that does real work across marketing, ops, engineering, and finance -> Viktor
  • You just want better Slack search and channel summaries -> Slack AI (included in Business+ at $15/user/mo)
  • You need AI-powered search over internal documents -> Dust (from $29/user/mo)
  • You need predictable, rule-based automation -> Zapier (free-$69.95/mo)
  • You're enterprise and need unified knowledge search -> Glean (~$50+/user/mo)
  • You're enterprise and need IT/HR service automation -> Moveworks or Aisera

The agents aren't mutually exclusive. But if you're a startup or mid-size team looking for one AI agent in Slack that handles the widest range of real work, Viktor is the most capable option available today.

Add Viktor to Slack or Microsoft Teams -- free credits included, no credit card required