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Cartesia

Your AI Voice Assistant For Business Intelligence

Building voice AI that feels truly human is hard, lag kills flow, robotic tones break trust, and most tools sound like they’re stuck in 2015. Cartesia fixes that. It delivers real-time voice responses with emotion, clarity, and speed so fast, it feels like you’re talking to a person. Whether you’re creating an AI support agent, voice-driven product, or outbound calling assistant, Cartesia brings natural conversation back to voice tech, without the clunky wait times or synthetic feel.

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Overall Value

Cartesia equips developers and startups with lightning-fast, lifelike voice AI. Its Sonic TTS model streams audio in as little as 40 ms—fast enough to power real-time phone agents, voice assistants, or live narrations. With voice cloning, accents, and ultra-low latency, Cartesia turns your text into natural-sounding speech that listens and responds like a person

Key Features

Sonic TTS: glowing, human-quality speech in 40–90 ms
Voice cloning & changer: create custom voices in seconds with just 3–10 s of source audio
Ink STT: seamless, real-time transcription built for noisy, conversational environments
Multilingual & accent support: 15+ languages, native inflections included
On-device & cloud deployment: flexible setup with end-to-end encryption
Voice agent templates: build phone agents, support bots, outbound callers in a snap

Use Cases

AI-powered support agents that answer customer queries in real-time
Call center automation with natural speech and instant transcriptions
Podcast narration, e-learning, and automated storytelling
Audiobook dubbing across languages and dialing in accents
Interactive voice experiences for games, avatars, or smart devices

Technical Specs

API access: built for developers, with well-documented SDKs
Latency: 40 ms (Sonic Turbo) to 90 ms (Sonic) time-to-first-audio
Streaming STT: Ink models handle real-world audio variances
Customizable voice features: adjust tone, emotion, speed, and clarity
Scalable arch: runs on-device or in cloud—SOC2, HIPAA, PCI-compliant
Memoryful architecture: powered by state-space models for context-rich flows

👉Launch voice apps that talk and listen like humans

FAQs

Do I need to wait long for an audio response?

Not at all. You get natural-sounding speech in under 100 ms—often in just 40 ms.

How short a sample do I need to clone a voice?

You can clone in as little as 3 to 10 seconds of clean audio.

Can I run voice AI on-device?

Yes. Cartesia supports on-device deployment for offline, private applications

Does it handle multiple languages and accents?

Absolutely. It supports 15+ languages with native pronunciation accuracy.

Conclusion

Words matter. With Cartesia, your apps speak and listen with human warmth and lightning speed. Whether you’re launching an AI receptionist, voice-driven game, or automated podcast, Cartesia’s ultra-low latency, voice cloning, and privacy-first deployment empower you to build next-gen voice experiences. Say goodbye to robotic delays—say hello to real, responsive conversation.