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Cartesia cartesia.ai
Research Team Data Active
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Description
Summary Real-time speech and transcription model platform for voice agents, offering Sonic TTS, Ink STT, and enterprise voice-agent APIs.
Description Cartesia provides Sonic text-to-speech, Ink speech-to-text, voice-agent APIs and real-time speech models optimized for low latency, quality, enterprise-grade scale and integration into live voice-agent systems.
Positioning Real-time speech models purpose-built for voice agents
Key facts
HQ location San Francisco, CA, USA
Founded 2023
Employee range 51-200
Funding stage Series A
Company type Private
Pricing model freemium, usage based
Last updated Jun 21, 2026
Financials
Revenue estimate Unknown / not publicly disclosed
Valuation estimate Unknown
Investments $64M Series A announced Mar 2025; $91M total funding reported; later 2025/2026 round reports unverified
Relationships
Target customers Developers, AI agent companies and enterprises building real-time voice agents
Key competitors ElevenLabs, Deepgram, Hume AI, OpenAI, PlayHT
Known customers Quora, Cresta, Rasa, ServiceNow, Sierra
Segments & Industries
Segments AI Workflows, AI Agents, LLM Fine-tuning, AI Developer Tools, Knowledge & RAG, LLM Deployment, AI Quality & Observability, AI Governance & Risk, Call Analysis, Voice AI Agents, STT/TTS Infrastructure, Analytics & BI