Pega CRM vs Sierra Comparison
Compare Pega CRM vs Sierra features, pricing, and more.
Last updated: November 2026
Pega CRM
5.9/10
Pega CRM is Pegasystems' enterprise suite for sales automation and customer service. It is built on the low-code Pega Platform and uses AI decisioning.
Sierra
7.4/10
Sierra is an enterprise conversational AI platform that builds and runs customer service agents across chat, voice, SMS, WhatsApp and email.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 5.9/10 | 7.4/10 |
| Integration | 7/10 | 8/10 |
| Analytics | 7/10 | 8/10 |
| Customization | 8/10 | 9/10 |
| Ease of Use | 4/10 | 7/10 |
| Support | 6/10 | 8/10 |
| Cost | 2/10 | 2/10 |
| Scalability | 8/10 | 9/10 |
| Security | 8/10 | 9/10 |
| Output Quality | Not listed | 9/10 |
| Pricing | ||
| Free plan | No | No |
| Cheapest paid plan | Contact for pricing | Contact for pricing |
| Estimated cost for 10 users | Contact for pricing | Contact for pricing |
| Features | ||
| AI Agents | Not listed | |
| Chatbots | Not listed | |
| Enterprise Controls | Not listed | |
| Knowledge Base Search | Not listed | |
| Text Generation | Not listed | |
| Voice and Audio | Not listed | |
| Workflow Automation | Not listed | |
| More features | ||
| Built-in Calling | Not listed | |
| Collaboration | Not listed | |
| Customer Support Management | Not listed | |
| Lead Management | Not listed | |
| Integrations | Not listed | |
| Sales Automation | Not listed | |
| Opportunity Management | Not listed | |
| Reporting & Analytics | Not listed | |
| Mobile Access | Not listed | |
Which One Should You Choose?
Why choose Pega CRM
Our data shows no clear advantage over Sierra.
Why choose Sierra
- Higher Ease of Use score (7/10 vs 4/10)
- Higher Support score (8/10 vs 6/10)
- Better fit for startups (3/10 vs 1/10)
- Better fit for customer support teams (10/10 vs 8/10)
Pros & Cons
Pega CRM
Pros
- Reviewers call its case management unmatched, citing modular flows and parent-child case relationships.
- It ships connectors for REST, SOAP, Kafka, SQL and SAP, and Process Extender can embed Pega workflows in Salesforce Lightning.
- AI features include win-probability forecasting, Next Best Action advice, and email and coaching agents.
- Gartner has named Pega a Leader for the CRM Customer Engagement Center for many years in a row.
- Business analysts without coding skills can configure apps in App Studio.
Cons
- Pricing is not public, and reviewers call it expensive and hard to understand.
- Reviewers say the user interface trails competitors and offers limited room for customisation.
- G2 reviewers describe the application as large and highly complex.
- Some users report that support takes days or weeks to resolve configuration issues.
Sierra
Pros
- Outcome-based billing means customers usually pay only for resolved conversations or other agreed results, not for each seat.
- Three build options cover both CX teams and engineers: the no-code Agent Studio, the code-first Agent SDK, and Ghostwriter for building agents from SOPs.
- One agent runs across chat, voice, SMS, WhatsApp, email and ChatGPT, keeping context between channels.
- Its list of compliance attestations is broad, covering SOC 2, ISO 27001, ISO 42001, HIPAA, PCI DSS and FedRAMP.
- It has a strong roster of enterprise customers, including SiriusXM, ADT, Rocket Mortgage and SoFi.
Cons
- There is no public pricing, and competitor estimates put annual contracts at about $150,000 or more.
- There is no self-serve or trial tier, so small teams cannot try it on their own.
- Implementation is largely vendor-led, which can make customers depend on Sierra's team for changes.
- There are few public reviews (7 on Gartner Peer Insights) to verify claims against.
- Some reviewers say voice quality still falls short of human level, and that complex telephony setups depend on how far the integration goes.
Not sold on either?
Frequently Asked Questions
Sierra scores higher on our AI Software criteria: 7.4/10 against 5.9/10 for Pega CRM. The largest gap is in Ease of Use: 4/10 for Pega CRM and 7/10 for Sierra.
No, neither Pega CRM nor Sierra lists a free plan.
Sierra is the better fit for customer support teams: we rate it 10/10 for them, against 8/10 for Pega CRM.
