Cartesia
Ultra-low-latency TTS API — 90ms for voice agents and real-time apps
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cartesia.aiAbout Cartesia
Ultra-low-latency text-to-speech API designed for real-time voice agents and conversational AI. Cartesia's Sonic model achieves 90ms latency with natural-sounding voices, making it ideal for phone bots, game NPCs, and interactive applications.
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Studio-grade AI voices and speech-to-text — the voice layer most teams pair with tools like this.
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Alternatives to Cartesia
View all Cartesia alternatives →More Audio & Music tools
Pepyshq
Pepyshq — description pending review.
EvaSpeaks.ai
EvaSpeaks.ai — description pending review.
VoiceStream
VoiceStream — description pending review.
Castmagic
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Cleanvoice AI
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Coqui
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Agent connectivity: not yet verified