AssemblyAI: pricing, free plan limits, languages and privacy

Speech-to-text APIs for recorded files and live audio, with usage-based billing and optional speaker diarization.

Visit AssemblyAI Data checked:

Key facts

TypeAPI, File transcription, Live transcription
PlatformsWeb

Web console and API access.

source
Free planNo free plan
The pricing page offers a free start; a recurring monthly minute allowance was not verified. source
Paid fromNot verified

Universal-2 costs $0.15/audio hour; prerecorded speaker diarization adds $0.02/hour. Usage billing, not a fixed subscription.

source
LanguagesENJAZH 99 languages

Universal-2 lists 99 languages; language coverage varies by model. Chinese was not individually verified.

source
Max length per filePaid: Not verified

A per-file duration limit was not verified.

source
Speaker labelsPaid plans source
ExportNot verified source
Meeting botNot verified source
OfflineNo

This entry covers the managed cloud service.

source
Trains on your data?Yes, unless you opt out

Security page: paid accounts can opt out of model training in Data Controls; changes apply to new requests. A signed BAA opts out automatically.

source
APIYes source

Similar tools

ToolFree planPaid fromLanguagesTrains on your data?
Amazon Transcribe API, File transcription, Live transcriptionPricing page: 60 minutes/month for 12 months from the first transcription request, subject to offer restrictions.Not verifiedENJAZHYes, unless you opt out
Amberscript File transcription, APINo free plan
A free trial is offered; its duration and allowance were not verified.
Not verifiedENJAZH 90+ languagesNo
Deepgram API, File transcription, Live transcriptionNo free plan
$200 in introductory credits; no recurring free minute allowance verified.
Not verifiedENJAZHYes, unless you opt out
ElevenLabs Speech to Text (Scribe) API, File transcription, Live transcriptionThe Free column lists 12 minutes/month for Scribe v2 in the UI; API usage is listed separately.$6/mo (Starter)ENJAZH 99 languagesYes, unless you opt out
Google Cloud Speech-to-Text API, File transcription, Live transcriptionV1 standard recognition: first 60 minutes/month free; this is not a V2 allowance.Not verifiedENJAZHOnly if you opt in
Maestra File transcription, Live transcription, APINo free plan
The audio-to-text page shows a 1-minute preview; export and account requirements differ between its UI and FAQ.
Not verifiedENJAZH 125+ languagesUnclear
OpenAI Speech to Text API API, File transcription, Live transcriptionNo free plan
The GPT-4o Mini Transcribe model page lists the free usage tier as unsupported.
Not verifiedENJAZHOnly if you opt in
Scribie File transcription, APINo free planNot verifiedENJAZHYes, unless you opt out

Compare all tools