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CartesiaDeepgram
AttributeCartesia

Cartesia

Deepgram

Deepgram

SegmentAudioAudio
VersionSonic 3Nova-3
Entry costFree tier · from $5/moFree tier · from $4,000/min
Pricing tiers—Free free · Growth $4000
Model stackSonic 3Aura-1 · Aura-2 · Flux · Flux English · Flux Multilingual · Flux STT · Flux TTS · flux-general-en · flux-general-multi · Nova-3 · Nova-3 Medical · Nova-3 Monolingual · Nova-3 Multilingual · Nova-3 Pharma · phoneLLM mini · Think-Fast · Whisper · Whisper Cloud · Whisper Large
Context window—n/a
Public API
Routes models
Changes / 30d011
OriginGlobalGlobal
CapabilitiesSub-100ms TTS, Voice cloning, Realtime APIReal-time streaming, Keyterm prompting, Multilingual, Voice agent API, Text to speech, Speech-to-Text, Text-to-Speech, Voice Agent API