Deepgram
Speech AI APIs for fast speech-to-text, text-to-speech and real-time voice agents.
What is Deepgram?
Deepgram is a speech AI company offering developer APIs for transcription (speech-to-text), voice generation (text-to-speech) and building real-time conversational voice agents. It's used for call centers, meeting tools, media captioning and voice applications.
Voice is one of the fastest-growing interfaces for AI, and it depends on two things: accurately understanding speech and responding with natural-sounding voice, both with low delay. Deepgram focuses on these building blocks for developers.
Its speech-to-text models work on recorded audio and live streams, with features like speaker labels, punctuation and smart formatting. Text-to-speech turns responses into spoken audio, and a voice agent API combines listening, thinking with a language model and speaking into one pipeline.
Deepgram is built for scale, offering hosted APIs and options for enterprises that need specific deployment or compliance requirements.
Key features of Deepgram
- Speech-to-text: Transcribes recorded and live audio with formatting and speaker labels.
- Text-to-speech: Generates natural voice audio for apps and agents.
- Voice agent API: Builds real-time conversational voice experiences.
- Audio intelligence: Adds features such as summaries and topic detection on transcripts.
- Developer SDKs: Libraries and docs for common languages.
What you can use Deepgram for
- Contact center transcription and analytics
- Voice assistants and phone agents
- Captions for video and live events
- Meeting transcription in products
Pros and considerations
Strengths
- Built for real-time, low-latency use
- Covers speech in and speech out
- Usage-based pricing for developers
Things to check
- It's an API platform, so it requires development work
- Accuracy varies by audio quality and language
- Costs scale with audio volume
Deepgram pricing
Freemium. Deepgram charges by usage and has offered free starting credit for new accounts, plus enterprise plans; check the official site for current pricing.
Who Deepgram is best for
Developers building voice products, transcription features or contact center analytics.
Independent listing by AI Agent Help, last reviewed October 2026. Features and pricing change; check the official website for the latest details. Spot something out of date? Tell us.
Frequently asked questions
Is Deepgram for non-developers?
It's mainly an API platform for developers and businesses building voice features.
Does Deepgram work in real time?
Yes. It supports streaming transcription and real-time voice agents.
Is there a free option?
Deepgram has offered free starting credit for new accounts; check the site for current offers.