Thoughtly Scales Enterprise Customer Communications With Cartesia's Voice AI Technology

Thoughtly is the leading AI-powered call center solution serving Fortune 500 companies and major enterprises across financial services, healthcare, e-commerce, and professional services. The company needed to handle high-stakes customer communications at unprecedented scale while maintaining voice quality, reducing latency, and integrating seamlessly with complex business tools. After three years of testing text-to-speech providers—including Microsoft, Google, Amazon, and venture-backed startups—Thoughtly found that most solutions were optimized for asynchronous applications like content creation and voiceovers, falling short of real-time enterprise requirements for handling massive call volumes with consistent quality.

Thoughtly partnered with Cartesia as an early design partner, selecting the platform for its unique focus on real-time enterprise voice AI applications. Cartesia's solution featured enterprise-grade deployment flexibility to handle peak call volumes, industry-leading voice cloning that required only 3-second audio samples from any environment compared to competitors' hours of studio-quality recordings, and access to over 200 ultra-realistic voices for consistent brand messaging. The platform's voice cloning workflow enabled Thoughtly customers to create studio-quality voice clones in under 30 seconds, while Cartesia's transcript following technology accurately handled complex pronunciations and specialized terminology across diverse enterprise applications.

Thoughtly achieved measurable business impact by deploying Cartesia's voice AI technology across their call center operations. The platform delivered a 10% increase in appointment booking rates, eliminated the need for 35 offshore call agents, and achieved 30 live transfers in under a second, demonstrating significant operational efficiency and customer satisfaction improvements. Thoughtly customers now create and deploy natural, autonomous voice clones over the phone in under 60 seconds, eliminating the traditional barriers of studio recording and multiple takes while maintaining the voice quality that builds customer trust and drives conversion rates. As CEO Torrey Leonard noted, the evolution from legacy text-to-speech APIs to Cartesia's conversational voice models has proven "staggering" in enabling rapid, scalable voice personalization for enterprise customers.