tools
Ghostwriter
Ghostwriter helps customer experience teams build, test, and improve AI agents using prompts, source materials, and conversation data.
In inglese
Ghostwriter is Sierra's agent-building agent. Teams describe desired behavior or upload SOPs, transcripts, whiteboard photos, and audio to create or modify customer-facing agents.
It generates simulations, tests edge cases, diagnoses failed tests, and applies fixes. It can also use strong support interactions and Explorer recommendations to improve agents. Sierra deploys its agents across channels and prices the overall service by outcomes; no public Ghostwriter tier pricing was found.
Features
- Build or modify agents with prompts instead of clicks
- Create customer journeys from SOPs, transcripts, photos, and audio
- Show proposed agent changes for review before deployment
- Automatically generate simulations after builds or updates
- Identify and test edge cases
- Diagnose failed simulations and implement fixes
- Improve agents from recordings or transcripts of strong interactions
- Apply Explorer recommendations with a Fix with Ghostwriter action
Use cases
- Build a claims intake agent with an SMS photo-upload flow
- Create a loan qualification agent that verifies financial information
- Generate an onboarding agent from existing technical documentation
- Build a voice agent from customer call transcripts
- Turn a process diagram into a customer-support workflow
- Deploy an account-unlock agent for production support
Pros
Cons
Latest updates
- Next gen multimodal agents: an interface that morphs with the conversation
Sierra’s multimodal agents bring voice, text, and visuals into the same conversation.
- Release governance: guardrails for agents at scale
Release governance brings checks, approvals, and staged rollouts from a builder's Workspace to a live customer conversation.
- The follow-up is the sale
Horizon agents can proactively engage prospective customers over days, weeks, or months.
Capabilities
- Automations — “The cycle of analyzing, improving, testing, and shipping happens automatically—and better and better agents emerge.” source
- AI agents — “Meet Ghostwriter, the agent that creates and optimizes other agents, turning your ideas into production-ready customer experiences without clicks, code, or complexity.” source
- Connects your apps — “Update workflows, systems integrations, guardrails, tone, and style with simple prompts.” source
Security
- SOC 2 Type II — “Sierra SOC 2 Type II Audit Report (2026)” source
- SOC 2 — “Sierra SOC 2 Type II Audit Report (2026)” source
- ISO 27001 — “ISO/IEC 27001:2022” source
- ISO 42001 — “ISO/IEC 42001:2023” source
- GDPR — “Enabling EU Customer Privacy: General Data Protection Regulation” source
- HIPAA — “Sierra HIPAA Audit Report (2026)” source
- Data kept in the EU — “Global (localization available in United States, European Union, Southeast Asia, Japan, Australia)” source
Pricing
- Prices checked
- 2026-09-26