Last checked 5 October 2026
Sierra: Pricing, Features & Alternatives (2026)
Better outcomes. Built on Sierra.
Overview
Sierra sells a single customer agent for chat, SMS, WhatsApp, email, voice, and ChatGPT. Ghostwriter builds an agent from SOPs, transcripts, or a plain-English goal, and the site says you pay only for outcomes. No dollar amount is published.
Pricing
- Pricing from
- Not published
- Price model
- Custom
- Free tier
- No
- Trial
- No
sierra.ai says "Pay for a job well done" and "Ensure you only pay for the value Sierra delivers with outcome-based pricing." No rate, plan, free tier, or trial length was on the page. Last checked 5 October 2026.
Features
- Sold to run the job rather than wait for a prompt on every step. Keep a way to stop it before it reaches a customer, a candidate, or a filing.
- Integrations: Chat, SMS, WhatsApp, Email, Voice, ChatGPT.
- Not sold as one named foundation model on the pages we opened.
Autonomy: Autonomous. Team size: Mid-market, Enterprise.
Pros
- Connects to Chat, SMS, WhatsApp, Email.
- Large brands that want one agent across channels and an outcome-based contract.
Cons
- No public self-serve price.
- Sold to operate the motion. Plan on supervising the first sends.
Who it is for
Large brands that want one agent across channels and an outcome-based contract.
Alternatives
Other products that appear in the same categories.
- AdaNot published
- ChatbaseFree, then $40/mo
- DecagonNot published
- Fin$0.99 per outcome
- ForethoughtNot published