80
Stack Score
Best for
Developers building voice products at scale who need streaming, diarization, and predictable per-minute economics.
At a glance
- Pricing
- freemium
- Setup time
- 15 minutes
- Learning curve
- medium
- Last verified
- 5/19/2026
What we love
- ✓Streaming + diarization out of the box is the right default for call audio
- ✓Latency is genuinely fast enough for live conversational use cases
- ✓$200 free credit lets you test seriously before committing
Where it falls short
- −Accuracy in noisy or accented audio still trails Whisper-large-v3
- −Pricing per minute adds up at high volume — negotiate enterprise rates
- −Domain-specific finetuning requires the higher tier
Pricing
✓ Pricing verified Jun 21, 20263 tiers
Pay as you go
From $0.0043
per minute streaming
- ✓$200 free credit
- ✓Nova-3 model
- ✓Diarization
Growth
$4,000
annual commit
- ✓Discounted rates
- ✓Priority support
- ✓Higher rate limits
Enterprise
Custom
contact sales
- ✓On-prem deployment
- ✓Custom models
- ✓SLA
Why we picked it
When Whisper isn't fast enough and you need streaming, Deepgram's the upgrade.
Overview
Fast, accurate ASR with streaming, diarization, and a strong free tier ($200 credit). Built for production call centers and live transcription.
Key features
- ●Nova-3 model — fastest production ASR with high accuracy
- ●Real-time streaming transcription with sub-300ms latency
- ●Speaker diarization out of the box
- ●Multilingual support with language detection
- ●Aura TTS — text-to-speech for full voice-AI pipelines
- ●Generous $200 free credit on signup, no card required
Best use cases
Live call transcription
Stream contact-center audio into text in real time with speaker labels for QA and coaching.
Meeting note pipelines
Transcribe Zoom or Meet calls with diarization for downstream LLM summarization.
Voice agent backbone
Feed STT into a Cartesia + LLM stack for full conversational voice products.
Integrations
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