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AssemblyAI vs Whisper AI

This comparison was retrieved by database IDs selected from the catalog.

AssemblyAI favicon

AssemblyAI

AssemblyAI

Whisper AI favicon

Whisper AI

OpenAI

Overview
Rating
4.81,200 reviewsTop rated
4.83,200 reviews
Category
Transcription AI
Transcription AI
Subcategory
AI Speech and Audio Intelligence
AI Speech Transcription
Company
AssemblyAI
OpenAI
Status
Active
Active
Launch year
2017
2022
Tags
transcriptionspeech recognitionreal-timespeaker diarizationaudio AIAPIPII redactionHIPAA
transcriptionspeech recognitionASRopen-sourcemultilingualaccessibilitypodcastmeeting notesAPI
Pricing
Starting price
FreeBest value
Free
Pricing model
Pay-as-you-go
Pay-as-you-go
Free plan
Yes
Yes
Free trial
✕
✕
Pricing notes

Free $50 credit; pay-per-minute from $0.37/hr async; real-time from $0.42/hr; Enterprise custom

API from $0.006/minute via OpenAI API; open-source free to self-host; many third-party implementations

Capabilities
Best for

Developers and businesses building transcription and audio intelligence features needing real-time accuracy and advanced features.

Developers, researchers, and businesses wanting accurate speech-to-text that can be self-hosted or used via API.

Target audience
DevelopersAI engineersMeeting tool buildersHealthcare tech teamsMedia companies
DevelopersAI engineersAccessibility teamsPodcast producersMeeting assistant builders
AI type
ASRNLPML
ASRNLP
Modalities
AudioText
AudioText
Technical
Model provider
Proprietary
OpenAI
Model names
Universal-2Lemur
Whisper Large V3
API available
✓
✓
Open source
✕
✓
Deployment
Cloud
CloudSelf-Hosted
Platforms
WebAPI
WebAPIPython
Integrations
AWSAzureGoogle CloudLangChainZoomTwilioHuggingFace
LangChainHuggingFaceReplicateAssemblyAIDeepgramFFmpeg
Team collaboration
✓
✕
Trust & security
Security
SOC 2 Type IIGDPRCCPAHIPAA
SOC 2 Type IIGDPRCCPA
Privacy notes

HIPAA BAA available; GDPR DPA; data deletion API; SOC 2 Type II

API: data used per OpenAI policy; self-hosted: full data control; GDPR DPA for API

Verdict
Pros
  • Best-in-class real-time transcription accuracy
  • Speaker diarization excellent
  • Lemur LLM for audio intelligence unique
  • HIPAA compliant
  • PII redaction built-in
  • 100,000+ developer validation
  • Open-source with full data control option
  • Near-human accuracy in most conditions
  • 99 languages
  • $0.006/min very affordable via API
  • Foundation of most AI transcription services
Cons
  • More expensive than Whisper self-hosted
  • API-only (no consumer product)
  • Some advanced features on higher plans
  • Less known than Google or Microsoft STT
  • Slower than real-time without GPU
  • Speaker diarization requires extra steps
  • Privacy concerns with OpenAI API usage
  • No native real-time streaming

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