ByHeather MacAvelia·Last verified May 19, 2026

Viktor

Name: Viktor
Author: Zeta Labs

★4.1/ 5

by Zeta Labs

✓ Verified Review

Visit viktor.com →

Slack AI coworker that connects to 3,000+ tools, writes and runs code in a persistent cloud environment, and delivers real outputs: PDFs, dashboards, web apps. Freemium with $100 in credits to start.

From

Free

freemium

GitHub

—

Stars

4.8 / 5

2 reviews ↗

MCP

Compatible

Viktor is an AI coworker built by Zeta Labs that lives inside Slack. Unlike AI assistants that generate text for you to act on, Viktor has its own persistent cloud computer where it writes and runs code to complete tasks end-to-end, delivering PDFs your board can read, dashboards your team actually uses, and web apps that look developer-built. Used by 13,000+ workspaces. The core differentiator is execution versus generation. You @mention Viktor like any teammate, describe what you need, and it queries your actual tools in a single run without tab-switching or CSV exports: Salesforce, HubSpot, Stripe, GitHub, Google Ads, Notion, Linear, and 3,000+ more. Scheduled tasks run autonomously while you sleep. Viktor remembers how your team operates across conversations, getting faster and more accurate over time. Funding: $75M Series A led by Accel (May 2026), the largest ever raised by a Polish-founded company. Angels include Stewart Butterfield and Cal Henderson, the Slack co-founders, alongside a prior pre-seed of $2.9M led by Daniel Gross (former Y Combinator AI head) and Nat Friedman (former GitHub CEO). Built on the autonomous agent infrastructure developed for Jace AI, Zeta Labs's earlier product. Pricing: free tier includes $100 in credits with no credit card required. Team plan is $50 per month for 20,000 credits. Quick tasks run 100 to 300 credits each. Complex multi-tool workflows run 500 to 1,500 credits. Real-world spend for heavy users ranges from $150 to $400 per month above the $50 headline rate. Enterprise plan available with custom billing, DPA, SLA, and dedicated onboarding. Security: SOC 2 Type 1 certified. SOC 2 Type 2 and ISO 27001 in progress. Not the right fit for: teams not on Slack (Microsoft Teams support is on the roadmap but not yet live), enterprise procurement requiring SOC 2 Type 2 or ISO 27001 before approval, teams needing flat predictable billing, or teams that review every AI action before it ships. Slack Marketplace approval is pending, meaning installation requires manual OAuth rather than a one-click install.

Pricing

freemium · Free

Segment

b2b

Setup

easy

Verified

May 19, 2026

Transparency

Public

Contract

Monthly or Annual

Data training

Not Disclosed

Autonomy

Human Optional

Capabilities

autonomousworkflow-builderdata-analysisreportingcrm-syncschedulingcode-generation

Pros & Limitations

Editorial assessment

Pros

✓Executes tasks end-to-end in a persistent cloud environment: Viktor queries Salesforce, Stripe, Google Ads, and GitHub in one run and delivers a finished PDF or dashboard, not text to copy-paste
✓Lives natively in Slack: teams interact with Viktor like any colleague via @mention, with no separate interface or workflow to adopt, and scheduled tasks deliver outputs autonomously without human prompting
✓Backed by the Slack co-founders and $75M in funding as of May 2026: Stewart Butterfield and Cal Henderson wrote personal checks into an AI coworker that runs inside the product they built

Limitations

⚠Early-stage enterprise security features: SOC 2 Type 2 and ISO 27001 are in progress but not yet certified, creating a procurement barrier for enterprise teams with strict security requirements
⚠Credit-based pricing creates uncertainty for heavy users: teams running many scheduled tasks or complex multi-tool queries need to monitor credit consumption carefully, with real-world spend ranging from $150 to $400 per month above the $50 headline rate
⚠Slack only for now: Microsoft Teams support is on the roadmap but not yet live, Slack Marketplace approval is pending requiring manual OAuth installation, and no standalone web interface exists for teams not on Slack

Technical Details

Deployment

cloud

Avg setup time< 1 hour (web app, connect your data sources)

Autonomous rateViktor autonomously executes multi-step tasks end-to-end in its own persistent cloud computer, writing and running code, querying connected tools, and delivering finished outputs including PDFs, dashboards, and deployed web apps without per-step human approval. Scheduled tasks run on a set cadence without human prompting.

Integrations

SlackSalesforceHubSpotLinearGitHubNotionStripeGoogle AdsMeta AdsJiraGoogle DrivePostHog

Security

SOC 2 Type 1