Kayako vs Siena AI

See how their public offers line up before you choose your own position. Prices stay in the currency, billing schedule, and charged unit each vendor publishes.

Kayako

See full pricing history

USD · US · source: kayako.com

Plan	Pricing	Charged by	Offer type
Kay AI Agent	USD 1 monthly $1 per fully resolved ticket	Usage · per stated usage allowance	Standalone · Usage based
Kayako One	Contact sales Talk to a pricing expert	Flat · per month	Standalone · Contact sales

Siena AI

See full pricing history

USD · US · source: www.siena.cx

Plan	Pricing	Charged by	Offer type
Platform fee — Core AI engine and unlimited sandbox	USD 750 monthly $750/month	Flat · per month	Standalone · Fixed
Automation Pack — Ticket automation	USD 0.9 monthly $0.90 each	Usage · per ticket	Standalone · Usage based

What each plan includes

Feature names follow each vendor’s own pricing page, so verify the wording before treating them as exact equivalents.

Kayako

Kay AI Agent

Plan card AI issue resolution: Included
Plan card No seat fees: Included
Plan card No setup fees: Included
Plan card No charge for escalations: Included

Kayako One

Plan card Unified inbox: Included
Plan card Ticketing system: Included
Plan card Knowledge base: Included
Plan card Live chat widget: Included

Siena AI

Platform fee — Core AI engine and unlimited sandbox

Highlights Access to Siena’s core AI engine: Included
Highlights Unlimited sandbox: Included

Automation Pack — Ticket automation

Highlights Automate tickets: Included

How their prices changed

Each dated row shows the public prices observed when that vendor’s pricing page changed.

Kayako

August 27, 2026 Source
- Kay AI Agent: USD 1 monthly
- Kayako One: Contact sales

Siena AI

August 27, 2026 Source
- Platform fee — Core AI engine and unlimited sandbox: USD 750 monthly
- Automation Pack — Ticket automation: USD 0.9 monthly