Capacity vs Sierra
Capacity
capacity.com
Sierra
sierra.aiSide by side
| Figure | Capacity | Sierra |
|---|---|---|
| Price from | — | — |
| Free plan | — | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | — |
| Plans published | 6 | 1 |
| Spec score · Customer Service Automation Software | 8.4 (#1) | 6.7 (#19) |
| Spec score · AI Customer Service Agents | 8.5 (#3) | 6.7 (#46) |
| Spec score · Customer Self-Service Software | 8.5 (#9) | 6.6 (#43) |
| Channels | Its AI agents support chat, SMS, voice, and email. | Agents can support voice, website and mobile app chat, WhatsApp, Apple Business Chat, SMS, email, and ChatGPT. |
| Integrations | Capacity advertises more than 250 prebuilt integrations, with examples including Salesforce, Zendesk, HubSpot, Slack, Microsoft Teams and Google Workspace. | Sierra offers 40+ pre-built integrations and lets teams build custom integrations for proprietary systems. |
| Security | Capacity states it uses AES-256 encryption at rest and TLS 1.2+ in transit and is GDPR, HIPAA, and SOC 2 Type II compliant. | Sierra says it uses supervisory layers around language models to reduce hallucinations, improve security, and prevent abuse. |
Plans
Capacity
- CorePrice not published
- CorePriced on request
- EnterprisePrice not published
- EnterprisePriced on request
- ProPriced on request
- ProPrice not published
In their own words
Capacity
Capacity is a customer-experience automation platform for contact centers. It connects knowledge, data, and business systems to support AI agents and tools for human agents. Agents can handle chat, SMS, voice, and email, while the platform adds real-time agent assistance, automatic quality assurance, conversation intelligence, and outbound campaigns. Its AI Knowledge Orchestration Layer is described as the foundation that learns from interactions. Capacity targets mid-market and enterprise contact centers, typically those with 50 to 500 or more agents. Usage is measured by response for chat and email, minute for voice, message for SMS, and agent-time hour for assist and intelligence. The platform lists 273 integrations, including Salesforce, Zendesk, Slack, and Microsoft Teams. It offers API access, workflow actions, voice support, and human handoff. Capacity lists Core, Pro, and Enterprise plans with storage up to 100GB, 1TB, and 2TB; pricing is on request and there is no free plan.