Sistava vs Viktor
AI Workforces
Sistava vs Viktor
Viktor is an AI teammate that lives entirely inside Slack and Microsoft Teams. You @mention it the way you would a colleague, and it works against 3,200+ connected tools, Stripe, Notion, HubSpot, Linear, to deliver a finished report, dashboard, or piece of code rather than a chat reply. It relaunched its current product in February 2026 with real momentum behind it, a $75M Series A led by Accel with personal checks from Slack co-founders Stewart Butterfield and Cal Henderson, and a self-reported 45,000+ teams using it. Sistava employees, by contrast, work through whichever channel you choose, chat, email, Slack, or others, with their own workspace (task board, Drive, work journal) rather than only a thread inside someone else's app.
Profile
- Pricing
- Free plan with $100 in credits that never expire, no card required. Team plans start at $50/mo (20,000 credits) up to $300/mo (125,000 credits). Reviewers report real spend for heavy users often runs $150-$400/mo above the headline rate.
- Founded
- 2023, San Francisco (current product relaunched February 2026)
- Funding
- $75M Series A led by Accel, with personal investment from Slack co-founders Stewart Butterfield and Cal Henderson
- Focus
- A persistent AI coworker that lives inside Slack and Microsoft Teams and executes finished work across 3,200+ connected tools
Why Sistava
- Sistava employees have their own workspace, a task board, file Drive, and work journal, so work stays organized outside a chat thread. Viktor's whole surface is a Slack or Teams channel, thin for tracking ongoing work over time.
- Sistava is flat-priced ($49-$399/mo), so your bill does not move with how much work you assign. Viktor's credit model starts at $50/mo, but reviewers report heavy users regularly spend $150 to $400/mo more once real usage kicks in.
- Honest concession: Viktor's execution depth is real and well-funded, 3,200+ integrations, SOC 2 Type 1 already certified, and Slack's own co-founders backing it with personal money. For a team that already lives inside Slack or Teams and wants one broad AI coworker embedded there, that is a genuinely strong product.
Feature Comparison
| Feature | Viktor | Sistava |
|---|---|---|
| ✗ | ✓ | |
| ✗ | ✓ | |
| Credit-based from $50/mo; real spend often $150-$400/mo more | Flat $49-$399/mo | |
| 3,200+ native | Thousands of native + MCP | |
| ✗ | ✓ | |
| SOC 2 Type 1 (Type 2, ISO 27001 in progress) | OWASP, guardrails |