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Selected comparison

Whisper AI vs AssemblyAI

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

Whisper AI favicon

Whisper AI

OpenAI

AssemblyAI favicon

AssemblyAI

AssemblyAI

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

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

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

Capabilities
Best for

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

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

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

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

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

Verdict
Pros
  • 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
  • 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
Cons
  • Slower than real-time without GPU
  • Speaker diarization requires extra steps
  • Privacy concerns with OpenAI API usage
  • No native real-time streaming
  • More expensive than Whisper self-hosted
  • API-only (no consumer product)
  • Some advanced features on higher plans
  • Less known than Google or Microsoft STT

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