Build With Voice AI at Scale, from Transcription to Voice Agents
Deepgram’s voice AI platform provides APIs for speech-to-text, text-to-speech, and full speech-to-speech voice agents. Over 200,000+ developers use Deepgram to build voice AI products and features.
Trusted by the world’s top Enterprises and Startups
The Complete Voice AI Stack
Designed for precision, security, and adaptability, our advanced features optimize transcription accuracy, real-time processing, context awareness, and seamless enterprise integration.
Voice Agent API
Unified API:Combines STT, LLM orchestration & TTS in real-time.
Conversational Control:Advanced barge-in, turn-taking & mid-session flexibility.
Flexible Deployment:Fully managed, single-tenant, VPC or self-hosted; compliant with HIPAA & GDPR.
Speech to Text API
High performance:90%+ accuracy, up to 40x faster.
Fast:Transcribe in real-time, or an hour of pre-recorded audio in <12 seconds.
Affordable:2x more affordable vs. cloud providers.
Flexible Deployment:On-premises, VPC, or cloud.
Text to Speech API
Real-Time Performance:Sub-200ms latency, scalable concurrency.
Domain-Tuned Accuracy:Industry-specific pronunciations for healthcare, finance, legal & more.
Natural Speech:40+ authentic voices with localized accents.
Unmmatched Accuracy
Deepgram leads the industry with the most accurate transcription models in the market across enterprise use cases.
- 54% accuracy lead over competitors in streaming data.
- 47% accuracy lead in pre-recorded transcription.
- Boost transcription accuracy by fine-tuning up to 100 key terms with Keyterm Prompting.
Real-time Performance
Experience lightning-fast voice processing with sub-300ms response times that make conversations feel natural and uninterrupted. Built for scale, our platform handles thousands of simultaneous voice interactions while delivering consistent low-latency performance for demanding real-time applications.
Superior Cost Efficiency
Superior performance meets unbeatable pricing across our entire voice AI platform:
- Nova-3 Transcription: $0.0077/minute (2x more affordable than cloud providers)
- Aura-2 Text-to-Speech: $0.030 per 1,000 characters (20-40% less than alternatives)
- Voice Agent API: Priced at $4.50/hour + bring-your-own-model discounts (up to 75% more affordable)
Trusted by startups and enterprises
Discover the power of our product through real stories.
Learn More About the Deepgram Voice AI Platform
The world’s only enterprise-ready, real-time and cost-effective STT, TTS and Voice Agent APIs