Both connect AI to your company. They bill for different things.
Last reviewed: July 2026
Credit where it's due
Dust is a clean, well-built internal AI assistant and agent builder for teams: a tidy way to put company knowledge and custom agents in front of your people, priced per seat.
Side by side
An operator with a unified inbox, voice, and approvals, running across the work, not beside it.
An internal assistant and agent builder your team opens to ask and build.
Proposes writes across your connected accounts; a person approves, and every action is logged.
Centered on assistants and agents over your knowledge and tools.
Answers your phone line and website chat; inbound calls land in your thread.
Focused on text-based assistants for internal teams.
Unifies email, chat, and tickets into one thread and acts where the work happens.
Connects to your data sources to answer; not a customer-facing inbox.
Priced on usage: you pay for work done, with daily spend caps. Start free, from $39/mo.
Priced per seat: you pay by headcount.
The verdict
Dust is an internal assistant billed by headcount. Kantum adds a unified multi-channel inbox, voice, and approval-gated actions, and is priced on usage, so you pay for work done, not seats.
An honest call
When Dust is the right choice
A defined team that each logs in to ask questions and build assistants over company knowledge, where per-seat pricing is predictable and easy to reason about.
When Kantum is the right choice
Operations with a lot of work and few seats, or customer-facing voice and chat. Usage pricing fits when the value is work done, not the number of people logged in.
Connect your channels and let Kantum do the work. It decides when to pull you in.