Cartesia Sonic

Provides real-time text-to-speech, speech-to-text, and voice agent models for low-latency interactive applications that need natural speech generation and accurate streaming transcription. It sells to developers and business teams building AI agents and interactive apps, including finance, healthcare, and government organizations and enterprises requiring production voice experiences. It is delivered via API with cloud, on-premise, and on-device deployment options that keep inference in-region for latency, data residency, and compliance requirements.

Key features

• Text to speech API
• Speech to text streaming transcription
• Voice agent platform
• AI voice generator
• Voice cloning
• Voice changer
• AI voiceover
• AI dubbing
• Speech synthesis
• Voice conversion
• AI voice enhancer
• Text to MP3 conversion
• Voice reader
• Streaming TTS in 44 languages
• Managed agents for voice agents
• Cloud deployment via regional endpoints
• On-premise deployment
• On-device inference