Compare products
Rinna vs Sierra
People
Price
Not published
Usage-based
Conversational AI
Annual estimate10 people, entry price
Not published
Usage-based
Offer
No offer right now
No offer right now
Ask the vendor
Add a product here
Conversational AI
Overview
Focus
Conversational AI
Conversational AI
Product
Japanese AI company developing AI character platforms and conversational AI technologies.
Sierra builds AI customer experience agents for brands that want conversational support and commerce workflows with stronger control and brand fit.
Headquarters
Tokyo, Japan
San Francisco, California
Company size
51-200 employees
Not available
Founded
2020
2023
Pricing details
Plan
Not available
Not available
Published rate
Not published
Usage-based
Billable seats
Not available
Not available
Free options
Not available
Not available
Other costs
Not available
Not available
Pricing source
Not available
Not available
Source updated
Oct 28, 2026
Oct 25, 2026