Sistava

Viktor Review

Viktor is an AI platform for a persistent ai coworker that lives inside slack and microsoft teams and executes finished work across 3,200+ connected tools. Review its features, pricing, and use cases before choosing a fit.

About 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.

Platform details

Official website

How much does Viktor actually cost, and where does it fall short?

The credit model punishes heavy, repetitive use: quick tasks cost 100-300 credits, complex workflows 500-1,500, and reviewers consistently flag that credits burn faster than expected. Viktor also has no standalone web app, if your team is not already living in Slack or Teams, it has nowhere to sit. Sistava works through whichever channel you choose, at a flat, predictable price.

What is Sistava?

Sistava is an AI workforce platform where you hire AI employees and work with them through conversation. Tell an employee what you need in plain language, and Sistava handles the setup behind the scenes, including the tools, context, and team coordination needed for the work. You do not need to learn AI configuration or build workflows first. You can start with the work you want done, stay involved in the decisions that matter, and see how your team is moving forward.

Learn more about Sistava

Comparison