Deepgram Voice Agent API Review
Unified STT + LLM orchestration + TTS voice-agent pipeline at a flat all-in rate ($4.50/hr), with BYO-LLM/TTS discounts and enterprise deployment options.
Among the 23 voice ai tools we track, Deepgram Voice Agent API has the 17th-cheapest per-minute rate.
From $0.07/min
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What we know about Deepgram Voice Agent API
Deepgram Voice Agent API is a voice ai platform: unified STT + LLM orchestration + TTS voice-agent pipeline at a flat all-in rate ($4.50/hr), with BYO-LLM/TTS discounts and enterprise deployment options. This profile tracks every Deepgram Voice Agent API fact we have verified, each linked to a primary source and dated.
On pricing, Deepgram Voice Agent API starts at $0.07 per minute for its entry tier. That is the sticker rate: real production cost usually runs higher once you add a language model, a voice provider, and telephony minutes.
New Deepgram Voice Agent API accounts get $200 free credit on signup (Pay As You Go) to test with before a card is required, which is enough to run a handful of real calls and judge latency and voice quality for your own script rather than a demo.
On capabilities, Deepgram Voice Agent API covers bring-your-own llm, bring-your-own tts voice, native outbound campaigns, interruption handling (barge-in), gdpr tooling / eu residency, and self-host / on-prem option, and does not offer llm/tts costs passed through at cost? and annual contract required for best pricing?. Each of those is verified against Deepgram Voice Agent API's own docs or dashboard, not marketing copy.
Placed against the 23 voice ai tools we track, Deepgram Voice Agent API's strongest showing is the 17th-cheapest per-minute rate - a spread worth weighing against your own priorities.
In total we track 13 verified facts for Deepgram Voice Agent API today, each linking the primary source it came from so you can check our work - and vendor claims we have not measured ourselves are labeled as such on the Deepgram Voice Agent API fact sheet below.
Reviewed by vsref Editorialfacts verified Jul 30, 2026Methodology →
Deepgram Voice Agent API pricing
≈ $0.075 per minute all-in (est.), verified Jul 30, 2026 (source).
| Monthly volume | All-in monthly bill |
|---|---|
| 1K min/moSolo builder | $75 |
| 10K min/moAgency | $750 |
| 100K min/moCall center | $7,500 |
All-in monthly: platform fee + per-minute + telephony. Assumes GPT-4o class model, ElevenLabs voice. How we compute costs →
Fact sheet
Every row independently verifiedConsidering a switch? Best Deepgram Voice Agent API alternatives →
TTS in this stack
Deepgram Voice Agent API lets you bring your own text-to-speech voice, so the voice engine is a separate pricing and quality decision. Compare the engines builders plug in most: ElevenLabs, Cartesia, OpenAI TTS, or the full text-to-speech comparison →
STT in this stack
A voice agent hears through its speech-to-text engine, and transcription accuracy and streaming latency are priced per audio minute. Compare the engines builders pair with Deepgram Voice Agent API: Deepgram, AssemblyAI, GPT-4o Transcribe, or the full speech-to-text comparison →