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Ultra-low latency, super natural:
The future of real-time AI voice interaction
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Where real-time connection meets intelligent conversation

TTS Sonic
Cartesia’s Sonic models delivers ultra-low latency, human-like expressiveness, and enterprise-grade reliability. Transmit across state-of-the-art voice across Tencent RTC's high-fidelity transmission for realistic voice ai experiences.
Industry leading latency
40+ languages with accent localization
Custom pronunciation dictionaries
Speed and emotion controls
Enterprise compliance and SLAs
TTS Sonic
STT Ink-Whisper
Cartesia's Ink-Whisper model achieves industry leading transcription latency plus resiliency against background noise and accents. Stream speech-to-text use cases though Tencent RTC’s globally stable network.
Fastest Time-to-first-Transcript
High accuracy transcriptions
Cost-effective models with high throughput
Global language support
Dynamic performance
STT Ink-Whisper
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The world's leading ultra-low latency, ultra-realistic voice AI platform

Cartesia is a Frontier AI Foundation Model Research Lab specializing in Voice AI. The team builds the worlds state-of-the-art Voice AI models based on the State Space Model architecture pioneered by the founders during their time together at Stanford University. Cartesia is based in San Francisco, California and has raised over $100M from leading investors and serves thousands of global customers.
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Conversational AI solution architecture diagram

Our solution combines Tencent RTC's high-quality transmission with Cartesia's Sonic model. Sonic provides an industry-leading ultra-low TTFA (as low as 40ms), so that conversations start instantly with lifelike, emotional voices for a truly natural dialogue.

Quickly build conversational AI for different scenarios

Use conversational AI to provide a more personalized educational experience

Use conversational AI to provide a more personalized educational experience

  • AI Virtual Tutors
  • Language Learning
  • Instant AI support
  • Personalized Practice
Integrating voice capabilities allows for the creation of virtual teaching assistants that mimic real-time human interaction, providing personalized instruction and responsive feedback within educational scenarios.
Elevate social interactions and entertainment experiences with conversational AI

Elevate social interactions and entertainment experiences with conversational AI

  • Virtual AI Companion
  • Character AI Dialogue
  • Live AI Host
  • Metaverse
Utilizing conversational AI combined with real-time interaction capabilities to understand user intentions and provide corresponding feedback, delivering a more realistic and personalized social entertainment experience for users.
Elevate call center operations with conversation AI

Elevate call center operations with conversation AI

  • AI Customer Service
  • AI Sales Consultant
  • Intelligent Outbound Calling
  • E-commerce Assistant
Conversational AI in call centers, powered by RAG and voice interaction, provides a rich, real-time customer service experience. It reduces costs and enhances service efficiency.
Streamline workflows and boost efficiency with conversational AI

Streamline workflows and boost efficiency with conversational AI

  • Voice Search Assistant
  • Voice Translation Assistant
  • Schedule Assistant
  • Office Assistant
Voice-activated productivity tools enable users to command and control applications with their voice, increasing efficiency and reducing manual input.
Enhances player immersion and ealistic interactions with conversational AI

Enhances player immersion and ealistic interactions with conversational AI

  • AI Enhanced NPC
  • Voice-Based Interaction
  • Intelligent Opponents
  • Personalized Player Experience
Conversational AI enriches gaming by providing interactive, context-aware NPC dialogues and voice interactions, creating a more engaging player experience.
Enhances IoT hardware with voice interactions and control using conversational AI

Enhances IoT hardware with voice interactions and control using conversational AI

  • Smart Home Control
  • Vehicle Personal Assistant
  • Intelligent Wearable Devices
  • Voice-Activated Devices
IoT hardware integrates with conversational AI to facilitate intuitive voice commands and AI-driven insights, streamlining operations and enhancing user interactions across various industries.
Conversational AI enhances the efficiency of health monitoring and clinical diagnoses

Conversational AI enhances the efficiency of health monitoring and clinical diagnoses

  • Mental Health Support
  • 24/7 Health Assistants
  • Telemedicine Integration
  • Intelligent Symptom Checking
Conversational AI streamlines health monitoring with personalized insights and boosts clinical efficiency for faster, more accurate diagnoses.

Why choose Tencent RTC conversational AI

    Optimal Performance Combo, Ultra-Low Latency

    Combines Cartesia Sonic’s industry-leading millisecond TTFA with Tencent RTC’s sub-300ms network latency for a seamless “Speak-and-Hear” experience.

    Minimal Integration, Accelerated Time-to-Market

    Using Tencent RTC’s mature SDK/API, developers can quickly integrate Cartesia’s TTS/STT capabilities, significantly reducing time-to-market for new products.

    High Availability and Global Scalability

    Leveraging Tencent Cloud’s global infrastructure across 200+ regions ensures high availability, scalability, and a 99.99% SLA, supporting global business growth.

    Enterprise-Grade Security and Global Compliance

    The platform adheres to strict international security standards, including SOC 1/2/3 and ISO 27001, ensuring trusted compliance for your AI voice data.

    Powerful Resilience Against Poor Networks and Noise

    Integrates Tencent RTC’s network resilience with Cartesia’s noise and accent handling capabilities, ensuring reliable service in challenging communication conditions.

    Future-Oriented Innovation Engine

    Both companies will continue investing in R&D to explore cutting-edge AI voice technologies, such as emotion recognition and voice cloning, keeping your product technologically advanced.

ISMS
ISO 27001
ISO 27017
ISO 27018
CSA STAR
dnv
ISO 27701
ISO 29151

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