vioscaleAI
Comparison

Deepgram vs Speechmatics

On the evidence we track, Speechmatics leads this comparison with a composite score of 73/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Deepgram full profile →Speechmatics full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Deepgram62
★Speechmatics73
Score
vioscaleAI score
Deepgram62 / 100medium · 55%
Speechmatics73 / 100medium · 54%
Pricing
Free tier
Deepgram✓
Speechmatics✓
Model
Deepgramfreemium
Speechmaticsfreemium
Price level
Deepgramhigh
Speechmaticslow
Starting price
Deepgram$4,000
Speechmatics$0.01
Transparent
Deepgram✓
Speechmatics✓
Integrations
Count
Deepgram6
Speechmatics4
Security
Certifications
Disclosure policy
Deepgram–
Speechmatics✓
Gdpr
Deepgram✓
Speechmatics✓
Hipaa
Deepgram✓
Speechmatics✓
Iso27001
Deepgram–
Speechmatics✓
Pci
Deepgram✓
Speechmatics–
Soc2
Deepgram✓
Speechmatics✓
Trust center
Market
Availability
Content
Faq
Deepgram7 items
Speechmatics7 items

Capabilities

Feature-by-feature on the axes that matter for speech to text. “-” means undocumented, not absent.

Capabilities
Real time streaming
Deepgram✓
Speechmatics✓
Speaker diarization
Deepgram✓
Speechmatics✓
Custom vocabulary
Deepgram✓
Speechmatics✓
Fine tuning
Deepgram✓
Speechmatics✓
Word timestamps
Deepgram-
Speechmatics✓
Punctuation formatting
Deepgram✓
Speechmatics✓
Pii redaction
Deepgram✓
Speechmatics✓
Vertical model
Deepgram✓
Speechmatics✓
Offline on device
Deepgram-
Speechmatics✓
Open source
Deepgram-
Speechmatics-

What each one is

The product in its own terms, so the numbers below have context.

Deepgram

A platform providing real-time speech-to-text, text-to-speech, and voice agent APIs with native support for understanding turn-taking, interruptions, and multi-speaker scenarios. Supports 45+ languages with features like speaker identification, smart formatting, and keyword recognition for enterprise and developer use cases.

Independently observed

Speechmatics

Leader

A speech-to-text service that converts audio to transcripts, supporting real-time and batch processing with high accuracy, speaker identification, and support for 55+ languages.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Deepgram

from $4000/yrUsage-basedFree tier

From $0.0042/min STT. Free $200 credit on signup. Growth plan $4,000+/year with higher limits.

  • Pay As You GoFrom $0.0042/min STT or $0.045/1k chars TTS. Free $200 credit included.
    • Real-time and batch processing
    • 45+ languages
    • Speaker diarization
    • PII redaction
    • Smart formatting
    • +1 more
  • Growth$4,000+/year
    • All public model endpoints
    • Higher concurrency limits
  • EnterpriseContact sales
as of verify ↗

Speechmatics

Leader
from $0.01/charactersUsage-basedFree tier

From $0.12/hr for speech-to-text. Free tier with $100 credits.

  • Melia 1 (General purpose)$0.12/hr
    • 55+ languages
    • Code-switching
    • Language hints
    • Language labeling
    • Custom dictionary
    • +2 more
  • Enhanced$0.38/hr
    • Single-language maximum accuracy
    • Custom dictionary
    • Advanced punctuation
  • Medical (Oak 1)$0.15/hr
    • Clinical conversations and dictation
    • Healthcare vocabulary
    • 55+ languages
  • Standard$0.23/hr
    • High volume and cost-sensitive workloads
  • Linden 1 (Voice agents)Contact sales
  • Text to Speech$0.011 per 1,000 characters
    • First 1 million characters free
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Deepgram✓
Speechmatics✓
CLI
Deepgram✓
Speechmatics✓
Deployment
Cloud / SaaS
Deepgram✓
Speechmatics✓
Self-hosted
Deepgram✓
Speechmatics✓
On-premise
Deepgram✓
Speechmatics✓
Hybrid
Deepgram✗
Speechmatics✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (1)
  • Zapier

Deepgram

9 total - 8 not shared
  • Genesys
  • Cisco
  • Avaya
  • Nuance
  • UniMRCP
  • Y Combinator
  • TensorFlow.js
  • AudioCodes VoiceAI Connect
Independently observed

Speechmatics

Leader
13 total - 12 not shared
  • Stenograph CATalyst VP
  • Adobe Premiere
  • Twilio
  • Python SDK
  • JavaScript SDK
  • .NET SDK
  • Stenograph
  • Adobe
  • Microsoft Azure
  • LiveKit
  • Vonage
  • Veritone
Independently observed
Still deciding?

Deepgram or Speechmatics: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.