Agentforce vs Sierra Comparison
Compare Agentforce vs Sierra features, pricing, and more.
Last updated: November 2026
Agentforce
6.7/10
Salesforce's platform for building and running autonomous AI agents for service, sales and employee tasks, using CRM data, Flows and the Einstein Trust Layer.
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 | A Agentforce | |
|---|---|---|
| Scores | ||
| Overall Rating | 6.7/10 | 7.4/10 |
| Analytics | 7/10 | 8/10 |
| Cost | 3/10 | 2/10 |
| Customization | 9/10 | 9/10 |
| Ease of Use | 4/10 | 7/10 |
| Integration | 8/10 | 8/10 |
| Output Quality | 7/10 | 9/10 |
| Scalability | 9/10 | 9/10 |
| Security | 9/10 | 9/10 |
| Support | 7/10 | 8/10 |
| Pricing | ||
| Free plan | Yes | No |
| Cheapest paid plan | $5/user/mo Agentforce User License | Contact for pricing |
| Estimated cost for 10 users | Free Salesforce Foundations | Contact for pricing |
| Features | ||
| AI Agents | ||
| Chatbots | ||
| Enterprise Controls | ||
| Knowledge Base Search | ||
| Text Generation | ||
| Voice and Audio | ||
| Workflow Automation | ||
| API Access | Not listed | |
Agentforce vs Sierra cost by team size
| Team size | Agentforce | Sierra |
|---|---|---|
| 1 user | FreeSalesforce Foundations | Contact for pricing |
| 5 users | FreeSalesforce Foundations | Contact for pricing |
| 10 users | FreeSalesforce Foundations | Contact for pricing |
| 25 users | FreeSalesforce Foundations | Contact for pricing |
| 50 users | FreeSalesforce Foundations | Contact for pricing |
The plan that fits each team size, billed monthly, before add-ons and usage charges. Each cost opens that tool's pricing calculator for the team size.
Which One Should You Choose?
AWhy choose Agentforce
- Has a free plan (Sierra does not)
- Higher Cost score (3/10 vs 2/10)
- Better fit for small business (3/10 vs 1/10)
Why choose Sierra
- Higher Ease of Use score (7/10 vs 4/10)
- Higher Output Quality score (9/10 vs 7/10)
- Better fit for customer support teams (10/10 vs 8/10)
Pros & Cons
AAgentforce
Pros
- Agents act through existing Salesforce Flows, Apex and APIs, and they follow sharing rules and field-level security.
- Agent Script lets teams hard-code business rules, such as refund limits, so the model cannot override them.
- Prebuilt agents cover service cases, lead qualification and sales coaching, which shortens time to a first deployment.
- Several buying models are available: Pre-Purchase, Pre-Commit and PayGo.
- Customers can start on the free Foundations tier.
Cons
- Several meters run at once (credits, seats and Data 360), so reviewers find costs hard to forecast.
- It requires Enterprise Edition or higher plus admin or developer skills, with pilots taking 4 to 6 weeks.
- It works best only when the data lives in Salesforce, and outside data usually means buying Data 360.
- Pricing models and product names have changed repeatedly since launch.
- Unused Flex Credits do not roll over to the next term.
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 6.7/10 for Agentforce. The largest gap is in Ease of Use: 4/10 for Agentforce and 7/10 for Sierra.
Agentforce has a free plan; Sierra does not list one.
Sierra is the better fit for customer support teams: we rate it 10/10 for them, against 8/10 for Agentforce.
