Deepgram
Speech-to-text, text-to-speech and voice agent APIs for real-time and batch audio, usable
Deepgram is a voice AI platform that converts speech into text, generates speech from text, and supports real-time voice agents through APIs. It addresses the need to transcribe audio, synthesize natural-sounding speech, and build conversational AI systems that can understand and respond to spoken input in real time. The platform is available through cloud APIs and can also be deployed self-hosted.
The platform includes speech-to-text models such as Flux STT for real-time voice agents and Nova-3 for production transcription, with support for 50+ languages. Text-to-speech synthesis, a real-time Voice Agent API, and Audio Intelligence features are also available. Speech-to-text capabilities include speaker diarization, keyterm prompting, smart formatting, filler word transcription, numeral formatting, redaction, entity detection, and automatic language detection. Custom speech-to-text models can be trained on proprietary datasets for specialized use cases.
Deepgram is designed for developers, startups, and enterprises building transcription, analytics, contact center, healthcare, media, and conversational AI applications. Pricing includes a free plan with initial credit, a pay-as-you-go option with no minimums, and a Growth plan with pre-paid annual credits. An Enterprise edition is available for businesses with large volumes, data, or deployment requirements.
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