About the company

Rasa is the leading open generative conversational AI platform to build and deliver next-level AI assistants. We work with some of the world’s largest brands to automate conversational experiences. Trusted by startups to Fortune 500 companies, Rasa ensures data privacy, security, and scalability for enterprises of all sizes.

We're excited to announce that Cartesia is now the default voice provider for Rasa, the leading enterprise platform for building conversational AI assistants. This partnership brings enterprise-grade voice capabilities to Rasa's no-code platform, enabling organizations to deploy sophisticated AI assistants across customer experience, sales, financial services, and healthcare workflows.

Whether you're building customer support systems, sales automation tools, or healthcare assistants, the integration enables developers to create end-to-end voice experiences through Rasa's no-code platform. Organizations can now design, deploy, and scale voice-enabled AI assistants while maintaining complete control over their brand voice and data security.

The Solution

Rasa's AI assistants have demonstrated remarkable success, delivering 181% ROI for enterprises and achieving a 60% containment rate - resolving customer issues without human intervention. Trusted by industry leaders like American Express, Adobe, and T-Mobile, Rasa needed a voice partner that could match their enterprise-grade requirements and commitment to excellence.

The partnership leverages key strengths from both companies:

- Industry-Leading Performance: With 90ms time-to-first audio, Sonic delivers the fastest high-quality text-to-speech available today, ensuring customer interactions feel as natural as speaking with a human agent.

- Enterprise-Ready Infrastructure: Comprehensive security certifications including SOC2 and HIPAA compliance, along with on-premise deployment options and custom SLAs, ensure reliable, secure operation at scale.

- Superior Voice Quality: Access to 200+ ultra-realistic voices enables organizations to maintain brand consistency across all customer touchpoints while supporting natural, fluent conversations.

- Transcript Following: Cartesia's technology excels at handling complex pronunciations - from medical terminology to financial data - making it ideal for specialized enterprise use cases.

Getting Started 

See Rasa's voice-enabled assistant in action as it manages a multi-step financial workflow: authenticating the customer, processing a lost card report, and coordinating card replacement delivery - all while maintaining a natural conversation flow.

Developers and organizations can begin building voice-enabled AI assistants today using our comprehensive integration:

- Rasa’s step-by-step technical tutorial on building a voice agent with Cartesia.

- A new section in our  docs on how to work with Rasa

"This partnership represents a transformative moment in enterprise AI adoption. By combining Rasa’s strengths in enterprise conversational AI with Cartesia's innovative voice technology, we're fundamentally changing how enterprises can deploy and scale AI assistants across their organizations."

Melissa Gordon, CEO of Rasa

"By combining Cartesia's leading generative voice API with Rasa's enterprise platform, we're empowering organizations to deploy voice-enabled AI assistants tailored to their brand and specific business needs, all while running securely on their infrastructure."
Karan Goel, Cartesia's co-founder and CEO.