Deepgram
Speech-to-text, text-to-speech and voice agent APIs for building real-time voice agents.
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About Deepgram
Deepgram is listed in our voice category and is aimed at builders. Speech-to-text, text-to-speech and voice agent APIs for building real-time voice agents. Pricing, as the maker states it: Usage-based. Maturity: Active. We last checked the official link on 2026-10-16.
What is Deepgram?
Deepgram offers speech-to-text, text-to-speech and voice agent APIs for real-time enterprise voice solutions.
It cites text-to-speech latency as low as 80 ms.
Sources: the official site and our directory listing, checked 2026-10-18. Official site: deepgram.com.
Who is Deepgram for?
Developers building real-time voice agents.
Key features
- Speech-to-text
- Text-to-speech
- Voice Agent API
- Low latency
Deepgram pricing
- Pay as you go: Free $200 credit · then usage-based, e.g. Nova-3 from $0.0048/min
- Growth: $4K+/year · lower per-minute rates
- Enterprise: Custom
Source: official pricing page, checked Oct 18, 2026. Prices change; check the source before buying.
Deepgram FAQ
What is Deepgram?
Deepgram offers speech-to-text, text-to-speech and voice agent APIs for real-time enterprise voice solutions.
Who is Deepgram for?
Developers building real-time voice agents.
Is Deepgram free?
Yes. Deepgram has a free option (Pay as you go), according to its pricing page (checked Oct 18, 2026).
How much does Deepgram cost?
As of Oct 18, 2026, Deepgram's official pricing page lists: Pay as you go: Free $200 credit; Growth: $4K+/year; Enterprise: Custom.
What are alternatives to Deepgram?
Similar tools include Vapi, Vision Agents, Inworld, Cartesia Sonic, Speechmatics and Hume AI.
Deepgram ratings and reviews
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Deepgram alternatives
Other voice tools in our directory. See all voice tools →
Vapi
Platform for building and deploying phone voice agents.
Vision Agents
Stream's open framework for building real-time voice and video agents with any model.
Inworld
Platform and runtime for real-time voice AI and interactive characters, including text-to-speech and agent orchestration for consumer apps.
Cartesia Sonic
Cartesia's real-time text-to-speech API with emotion control, built for low-latency voice agents.
Speechmatics
Speech-to-text and voice AI APIs that handle accents, multiple speakers and multilingual speech for voice agents.
Hume AI
Voice AI company focused on emotionally intelligent speech, with voice-native evaluation and human judgment tooling for voice agents.
Related lists
🏆 See also: Best AI Voice Agent Platforms · All best-of lists
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