Evaluating Sierra?

The platform-first alternative to Sierra

Platform-first with flexible delivery  (Parloa-, partner-, or customer-led)

Voice-first since 2018 with enterprise-grade accuracy, built and optimized for high-volume, high-intent CX

120+ languages, agents live in 100+ countries

Composable architecture that adapts to existing systems

Mature ecosystem of technology, BPO, and service partners

High-touch, services-led implementation model

Started with chat, expanded into voice later as the platform evolved

Global expansion depends on project scope

More bespoke deployments with less long-term autonomy

Parloa enables enterprises to own and evolve their AI agents over time. Sierra’s high-touch model can accelerate early progress, but it often limits scalability and customer autonomy.

Parloa was founded with an EU-first regulatory mindset and is built to support global governance, compliance, and consistency across regions.


Parloa customers consistently move from pilot to production in ~90 days, supported by built-in lifecycle management and proven enterprise patterns.

Whether you deploy through Parloa, a partner, or your internal teams, Parloa supports multiple operating models without locking you into one approach.


A very innovative vendor with highly competent staff who provides the best possible advice. The partnership ist very professional and at the same time personal. The features are always innovative and market-leading.

Professional and innovative: Learning and growing together

Very engaged and qualified staff. deep knowledge of Voice bot technology. Very experienced in UX. Excellent customer engagement. very sophisticated technology (best in class). Their technology is very user friendly.

Exceptional voice bot technology and staff expertise

I appreciate the collaboration and support while working as one team.

Supportive team environment noted alongside ease of use observations

Parloa offers a great costumer service. From start to finish, the team supports the company in the deployment and configuration of voicebots. The communication between Parloa and our company worked perfectly to provide a voicebot solution in a decent & fast way.

Great tool to get started implementing voice bots  in the company

Great support from the Parloa team in all aspects of the project!

Parloa team provides strong support and fast results with cost savings

Fast and pragmatic communication. Solution oriented behavior and collaborative approach.

Efficient communication and easy integration stand out, reporting needs improvement

Working with Parloa has been a great experience from the introduction/account management side to the hand off to the planning/implementation team. They are a tireless team of focused professionals with customer service and AI expertise that worked with us closely.

Parloa: Transforming the AI customer service experience

Parloa takes the complex domain conversational AI, chat bots, IVR and more and through their easy to use interface, consultative approach and robust feature set puts users with limited technical capabilities but rich business knowledge in the driver's seat.

Parloa: changing the game in conversational AI with user-friendly interface

The whole team have been positive, proactive, responsive, flexible, approachable, dedicated and have worked relentlessly to deliver a holistic solution.

Delving into how a product transforms real-life issues intuitively

Working with Parloa has been an outstanding experience. From the very beginning, and even after four years of collaboration, we have received exceptional customer support. The team takes full responsibility for our needs, which gives us a great sense of trust and reliability. 

Exceptional customer support and cutting-edge AI. Parloa outperforms the competition

Trusted by leading brands 

See why enterprises 
choose Parloa over Sierra

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The AI agent buyer’s guide

Parloa scales seamlessly to handle unlimited conversations, ensuring consistent performance as your  business grows.

The AI agent buyer’s guide

The AI agent buyer’s guide

The AI agent buyer’s guide

The AI agent buyer’s guide

The platform-first alternative to Sierra

Key differences at a glance: Parloa vs Sierra

Why enterprises choose Parloa over Sierra

Platform ownership vs services dependency

Designed for global operations

Faster time to sustainable value

Flexibility that scales with your strategy

Trusted by leading brands

See why enterprises

choose Parloa over Sierra

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