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INFRO

AssemblyAI · Audio

Universal-3 API pricing

assemblyai/universal-3

Transcription. Universal-3 by AssemblyAI, called through one INFRO key alongside every other model you run. We price it 26% below AssemblyAI's direct rate — the same model, the same weights, reached through a different integration.

Pricing

Per audio hourUSD · updated 2026-08-24

AssemblyAI direct

$0.27

per audio hour

INFRO

$0.20

per audio hour

You save

26%

on every unit

Illustrative launch rates, reconciled against published provider pricing on 2026-08-24. Live rates come from GET /v1/models once your key is active.

Calling Universal-3

POST /v1/audio/speechAt launch — Committed to the first release. In build now, not usable yet.
import os
from infro import Infro

client = Infro(api_key=os.environ["INFRO_API_KEY"])

transcript = client.audio.transcriptions.create(
    model="assemblyai/universal-3",
    file=open("meeting.mp3", "rb"),
)

What this modality supports

  • Text to speech
  • Music generation
  • Transcription
  • Diarization

Text-to-speech with streaming playback, full-track music generation, and transcription with timestamps and diarization. Billed per character generated, per track, and per hour transcribed.

QuickstartGet a key

Alternatives for transcription

Same modality, nearest in price. All of them share the request shape above, so comparing them is a one-word change.

Work out what Universal-3 would cost you

Put your current spend on this model into the calculator and see the same workload priced here — or have us read your real usage.

Calculate your savingsFree cost audit