CoAI

Sierra

Sierra

A conversational AI platform for customer-facing work, billed on outcomes rather than seats.

Customer supportAI agentsContact sales
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Platforms

Web

Overview

Sierra calls itself "the leading conversational AI platform for businesses." Its agents work across chat, SMS, WhatsApp, email, voice and ChatGPT, and the pitch goes beyond support to driving revenue. It is made up of Ghostwriter for building agents, Agent Studio as the dashboard, Horizon for optimizing outcomes and Insights for analytics. Pricing is described as outcome-based — "pay for a job well done" — with no figures published.

Main features

  • Chat, voice, email and other channels
  • Ghostwriter agent builder
  • Agent Studio dashboard
  • Outcome optimization (Horizon)
  • Analytics (Insights)
  • Outcome-based pricing

Pricing

Outcome-based (contact sales)

Contact sales

  • Outcome-based pricing
  • Amounts are not published
  • Contact sales for a quote

No price has been verified for your country yet. Check the official site for local availability and pricing.

Screenshots

Sierra official website
Sierra official website (captured 2026-09-22)

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