Alternatives
Sierra alternatives
Looking for something other than Sierra? These AI agents also answer customers and take action for support teams.
The alternatives
- DecagonDecagon AI, Inc.
Pick it if you want support procedures written in plain language that your team owns, tested with simulations and live A/B tests.
Enterprise pricing; no public price on the official site, get a demo (checked Oct 16, 2026) · Platforms not statedCompare with Sierra - FinFin (formerly Intercom; part of Salesforce)
Pick it if you want public, outcome-based pricing ($0.99 per outcome) across voice, chat and email.
Paid from $0.99/per outcome · Web, Slack, WhatsApp, APICompare with Sierra - Cresta AI AgentCresta Intelligence Inc.
Pick it if you run a contact center, maybe in a regulated industry, and need voice and chat in 30+ languages with handoffs to people.
Enterprise pricing; no public price, book a demo (official site) · Platforms not statedCompare with Sierra - AgentforceSalesforce
Pick it if your company runs on Salesforce and you want to build service agents there, free to start.
Free plan, paid from $2 · Web, Slack, iOS, macOSCompare with Sierra
Or stick with Sierra
Stick with Sierra if you want to meet customers in messaging apps like WhatsApp and iMessage, and build agents with Agent Studio.
Facts from each maker's official pages.