Parloa vs Sierra (2026): which should you pick?
As of Nov 12, 2026, Parloa grades higher than Sierra: 1.8 against 1.6 out of 4.0.
Checked Nov 12, 2026 · graded Nov 12, 2026 by ToolGPA
Parloa grades higher on platforms. They get the same grade on value for money, the free plan, features and ease of use.
Price, platforms and features side by side. The table says where each price was read and when.
Which one is for you
Pick Parloa if
- Fits if you run an enterprise contact centre with voice and chat volume
- Makes sense if you use Genesys, Five9 or ServiceNow and want it connected
Look elsewhere if
- Not for you if you want self-serve, since there is no sign-up or free plan
- Not for you if you want a price list, as pricing is set after an analysis of your contact centre
- Skip it if you are a small business, because the site is aimed at enterprise deployments
- Watch out: you pay per minute for voice, so cost grows with call volume
Pick Sierra if
- Fits if you are a large brand with heavy customer service volume
- Makes sense if you want to pay by outcome rather than seat
Look elsewhere if
- Not for you if you want a price, as none is published
- Not for you if you want to try it, since there is no self-serve sign-up or free plan
- Skip it if you are small, because the site is aimed at large brands
- Watch out: no integrations are listed, so ask what it connects to
How we grade them
| 1.8GPAParloaWeak | 1.6GPASierraWeak | |
|---|---|---|
| Value for money | CNo price is published; the page says plans are custom-built, per minute for voice and per interaction for chat. | CNo price is published; the site says pricing is outcome-based and points to a sales call. |
| Free plan and trial | FNothing free is offered: no free plan and no self-serve sign-up. | FNo free plan and no sign-up. The route is a sales conversation. |
| Features | CAn agent builder, a testing lab, analytics and model orchestration. The listing shows an enterprise product with no stated caps. | CAn agent builder, channels, insights and observability are listed, but nothing in the listing says how far each goes. |
| Ease of use | CNo store rating on record, and a contact centre has to connect its systems before it works. | CNo store rating on record, and a large brand has to onboard it with the vendor. |
| Platforms and integrations | BWeb, with Zendesk, Salesforce, Dynamics 365, ServiceNow, SAP, Genesys and Five9 listed. | CWeb only, and the site lists no integrations. |
| Best for | large contact centres moving to AI agents | big consumer brands buying a service agent from the vendor |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Parloa and Sierra. How we grade
Where they differ
- Parloa also covers no-code.
- Sierra also covers chatbots.
In commonWebAI agentsAI support agent
At a glance
| Parloa | Sierra | |
|---|---|---|
| Pricing | Paid | Paid |
| Starts at | Not published | Not published |
| Free plan | None | None |
| Free trial | None listed | None listed |
| Web | ||
| Made by | Parloa | Sierra |
| Price read from | Not confirmed | Not confirmed |
| Checked | Nov 12, 2026 | Nov 12, 2026 |
Worth knowing
Parloa
- No prices are published: the pricing page says plans are custom-built and consumption-based, per minute for voice and per interaction for chat.
- Pricing is set by volume package after an analysis of your contact center, so a quote is needed to compare cost.
- The site is aimed at enterprise deployments and has no self-serve sign-up or free plan.
Sierra
- No prices are published; Sierra says pricing is outcome-based and points visitors to a sales conversation.
- No self-serve sign-up or free plan is shown on the site.
- The site gives no list of integrations.
Key features
Parloa
- Agent Builder
- Agents are built on the platform, and the vendor says the teams closest to customers can build and tune them without specialist engineers.
- Performance Lab
- Simulates and tests AI agents for every update or model change before they go live.
- Parloa Lens
- Monitors AI agents in production to catch problems.
- Voice in 140+ languages
- The conversational infrastructure is described as designing voice interactions in over 140 languages.
- Model orchestration
- Parloa selects and tunes the underlying models for each use case and says it bears the token cost.
- Contact-center connectors
- Connectors are listed for Zendesk, Salesforce, Microsoft Dynamics 365, ServiceNow, SAP, Genesys and Five9.
Sierra
- Ghostwriter agent builder
- Builds an agent from uploaded SOPs, transcripts and recordings or a plain-English description, with guardrails and multilingual support.
- Channels
- A single agent can be deployed on chat, SMS, WhatsApp, email, voice and ChatGPT.
- Insights
- Explorer analyzes conversations, Monitors flags the ones that need attention, and Experiments runs multivariate tests.
- Observability
- Shows each agent action, including tool calls and knowledge lookups, along with latency.
- Horizon
- Plans multi-step outcomes over days or months, using memory of the customer across conversations and systems.
Plans
Parloa
Pricing could not be confirmed. See parloa.com.
Sierra
Pricing could not be confirmed. See sierra.ai.
Common questions
Which is cheaper, Parloa or Sierra?
As of Nov 12, 2026, Parloa has no price we could confirm, and Sierra has no price we could confirm.
Which has a free plan, Parloa or Sierra?
As of Nov 12, 2026, neither Parloa nor Sierra has a free plan.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.