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Deepgram

Enterprise-grade speech-to-text, TTS, and voice AI in one API

4.7(4,100 reviews)
Operations & Automation

About

Deepgram unifies speech-to-text, text-to-speech, and LLM orchestration into a single low-latency API — eliminating the need to stitch together separate transcription, voice synthesis, and AI services. Its Nova-3 model delivers industry-leading transcription accuracy across 30+ languages with sub-300ms latency, making it the go-to infrastructure for businesses building voice agents, call analytics platforms, meeting tools, and conversational products. Used by companies processing millions of minutes of audio monthly — from healthcare to fintech to customer service automation.

Key Features

Nova-3 speech-to-text — industry-leading accuracy across 30+ languages
Sub-300ms latency for real-time voice applications
Text-to-speech with 100+ natural-sounding voices
Voice agent framework — full conversational AI in one API
Speaker diarisation, punctuation, and custom vocabulary
Generous free tier: 12,000 minutes/month

Integrations

TwilioAWSGoogle CloudAzureZoomSlackZapier

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Free (12,000 mins/mo) / pay-as-you-go
freemium plan
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CategoryOperations & Automation
Pricingfreemium
Rating4.7/5
Reviews4,100
StatusVerified

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