Cartesia
Research Team Data
Published
Real-time speech models purpose-built for voice agents
Company profile
Overview
Real-time speech and transcription model platform for voice agents, offering Sonic TTS, Ink STT, and enterprise voice-agent APIs.
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.
At a glance
Key facts
- HQ location
- San Francisco, CA, USA
- Founded
- 2023
- Employee range
- 51-200
- Funding stage
- Series A
- Company type
- Private
- Last updated
- Pricing model
- FreemiumUsage BasedFree tier; Pro $5/mo; usage-based credits/agent minutes; enterprise plans
Business context
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
Market context
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
Source context
Classification (raw research text)
- Core focus
- Voice AI infrastructure
- Core industry
- AI infrastructure / voice AI
- Core category
- STT/TTS and voice agent infrastructure
Shown verbatim from the research spreadsheet — deriving structured industry tags from this text is a future phase.
Market taxonomy
Segments, Industries & Certifications
Segments
AI WorkflowsAI AgentsLLM Fine-tuningAI Developer ToolsKnowledge & RAGLLM DeploymentAI Quality & ObservabilityAI Governance & RiskCall AnalysisVoice AI AgentsSTT/TTS InfrastructureAnalytics & BI