Comparison

AssemblyAI vs faster-whisper

On the evidence we track, AssemblyAI leads this comparison with a composite score of 80/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
AssemblyAI80
faster-whisper39
Score
Vioscale score
AssemblyAI80 / 100medium · 60%
faster-whisper39 / 100low · 28%
Pricing
Free tier
AssemblyAI
faster-whisper
Model
AssemblyAIfreemium
faster-whispercommercial
Price level
AssemblyAIlow
faster-whisperfree
Starting price
AssemblyAI$0.37
faster-whisper
Transparent
AssemblyAI
faster-whisper
Integrations
Count
AssemblyAI5
faster-whisper8
Security
Disclosure policy
AssemblyAI
faster-whisper
Gdpr
AssemblyAI
faster-whisper
Hipaa
AssemblyAI
faster-whisper
Pci
AssemblyAI
faster-whisper
Soc2
AssemblyAI
faster-whisper
Reliability
Sla pct
AssemblyAI99.9
faster-whisper
Status page
AssemblyAI
faster-whisper
Adoption
Dependent repos
AssemblyAI
faster-whisper35
Github stars
AssemblyAI
faster-whisper25,097
Activity
Commits last 30d
AssemblyAI
faster-whisper0
Release
Cadence days
AssemblyAI
faster-whisper27
History
AssemblyAI
faster-whisper20 items
License
Spdx
AssemblyAI
faster-whisperMIT
Language
Primary
AssemblyAI
faster-whisperPython
Market
Availability
faster-whisper

Capabilities

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

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

What each one is

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

AssemblyAI

Leader

A platform providing speech-to-text APIs for both pre-recorded and live audio, voice agent capabilities, and audio analysis features like speaker identification and sentiment analysis. Serves millions of developers with focus on accuracy and scalability.

Independently observed

faster-whisper

An open-source implementation of speech recognition that accelerates transcription using optimized machine learning inference, with support for multiple platforms and container deployment.

Independently observed

Pricing

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

AssemblyAI

Leader
from $0.37/hourUsage-basedFree tier

From $0.37/hour for async transcription. Free tier available.

  • Async Speech-to-Text$0.37/hour
  • Real-time Speech-to-Text$0.47/hour
  • Sync Speech-to-Text$0.45/hour
as of verify ↗

faster-whisper

Open sourceFree tier
as of verify ↗

Platform & deployment

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

Platforms
Web
AssemblyAI
faster-whisper
macOS
AssemblyAI
faster-whisper
Windows
AssemblyAI
faster-whisper
Linux
AssemblyAI
faster-whisper
CLI
AssemblyAI
faster-whisper
Deployment
Cloud / SaaS
AssemblyAI
faster-whisper
Self-hosted
AssemblyAI
faster-whisper

Integrations

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

AssemblyAI

Leader
5 total
  • Semantic Kernel .NET
  • Vercel AI SDK
  • OpenAI GPT-5.6 Luna
  • OpenAI GPT-5.6 Terra
  • Google Gemini
Independently observed

faster-whisper

8 total
  • OpenAI API
  • OpenAI SDK
  • OpenAI CLI
  • HomeAssistant
  • Konele
  • Docker
  • AzureML
  • FastAPI
Independently observed

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