Deepgram's Voice Agent API

A single, unified conversational AI API for building enterprise-ready, cost-effective voice AI agents. Combines the simplicity developers want with the orchestration control enterprises need. No stitching together STT, TTS, and LLM orchestration. No black box limitations. Priced at $4.50/hr.

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Hey there! Ready to see the Voice Agent in action? Just click the orb on the left to get started, then switch between voices and explore what's possible!

Voice Agent API features

Powered by the industry’s fastest, most performant speech recognition and voice synthesis models, our voice agent stack delivers unparalleled performance and scale.

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Unified Voice Agent API

One API that combines speech-to-text, LLM orchestration, and text-to-speech in real time. Simplifies development by eliminating the need to stitch together multiple services.

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Conversational control

Built-in barge-in detection, turn-taking prediction, function calling, and mid-session control ensure smooth conversations without pauses or interruptions.

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Full model ownership

Deepgram controls the full voice stack across STT, TTS, and runtime orchestration for optimized latency, model tuning, and tightly synchronized speech-to-speech flow.

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Deployment flexibility

Deploy fully managed, dedicated single-tenant, in VPC, or self-hosted. Supports HIPAA, GDPR, regional data residency, and isolated runtimes for enterprise compliance.

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BYO LLM & TTS

Easily integrate your own LLM or TTS provider while retaining Deepgram’s orchestration, streaming pipeline, and real-time responsiveness.

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Scalable cost optimization

Flat-rate pricing at $4.50/hr with Deepgram’s full stack, plus built-in rate reductions for BYOM. Optimized compute efficiency lowers TCO for large-scale deployments.

Powering the future of real-time Voice AI Agents

Our Voice Agent API enables real-time conversational AI agents that seamlessly handle interruptions, take complex actions, and deliver natural, responsive customer interactions without delays or rigid turn-taking.

Voice Agent Demo

Start building real-time Voice AI Agents

Deploy conversational AI agents with one unified Voice Agent API, delivering natural conversations, real-time responsiveness, and full control over deployment, orchestration, and performance.