Sierra: score, price and alternatives in 2026
Agents for customer conversations across chat, voice and email. Sierra is made by Sierra and ranks #67 of 100 in our ranking of AI agents, with a score of 68/100.
- Score
- 68/100
- Overall rank
- #67
- Customer support rank
- #4 of 9
- Company
- Sierra
Sierra pricing
Outcome-based pricing; no amounts published.
Checked against the vendor's page on . Official pricing page.
How Sierra scores
Strong enterprise support agent, but no public prices and access is through sales. It does best on autonomy, reliability and security & governance. It loses points on ease of access and pricing transparency.
Scores are editorial judgments on a 1 to 5 scale per criterion, weighted to a total out of 100. How the scoring works.
Sierra alternatives
- Zendesk AI Agents (78/100, #13): Support agents billed per automated resolution.
- Fin (74/100, #32): One of the most cited customer-support agents; priced per outcome.
- Tidio (70/100, #56): Customer service with the Lyro AI agent, chat and flows.
- Decagon (68/100, #68): Customer-service agents across chat, voice and email.
See the full ranking of 100 AI agents, with search and filters.
Frequently asked questions
How much does Sierra cost?
Outcome-based pricing; no amounts published. We checked this on the vendor's official page on 2026-10-31; prices change often, so confirm there before you buy.
Does Sierra have a free plan?
We did not find a free plan on the official page. Listed pricing: Outcome-based pricing; no amounts published.
What is Sierra?
Agents for customer conversations across chat, voice and email. It is made by Sierra and sits in our Customer support category.
How good is Sierra compared with other AI agents?
It scores 68/100, which is #67 of 100 agents overall and #4 of 9 in Customer support. Closest alternatives: Zendesk AI Agents (78/100), Fin (74/100) and Tidio (70/100).
How is the score calculated?
Each agent gets 1 to 5 on 8 weighted criteria; the points add up to a total out of 100. The scores are Deyron Labs editorial judgments, not benchmarks.
Our independence
Scores and positions are never for sale, and vendors do not review or edit this page. There are no sponsored or affiliate links on it. If that ever changes, the links will be labeled. Spotted a wrong detail? Suggest a correction and include the official page that shows it. Visit Sierra's official site.