AssemblyAI

AssemblyAI Universal-3.5 Pro speech-to-text

Universal-3.5 Pro async at $0.21 per hour ($0.0035 per minute). Realtime and add-ons bill separately.

Usage calculator

List prices are stored in US dollars. Conversions use the units-per-dollar exchange-rate snapshot last checked 2026-07-31

Published unit price
$0.0035
Estimated cost
$3.50

Project monthly volume

Estimated daily cost
Estimated monthly cost

Cost by usage volume

The table includes intermediate steps such as 25, 50, and 250 units, so you can inspect growth between large round-number bands.

Usage volume Estimated cost
1 $0.0035
10 $0.035
25 $0.0875
50 $0.175
100 $0.35
250 $0.875
500 $1.75
1,000 $3.50
2,500 $8.75
5,000 $17.50
10,000 $35.00
25,000 $87.50
50,000 $175.00
100,000 $350.00
250,000 $875.00
500,000 $1,750.00
1,000,000 $3,500.00
5,000,000 $17,500.00
10,000,000 $35,000.00

Cost profile

  • The published rate is $0.0035 per audio minute.
  • One thousand units cost $3.50; 100,000 units cost $350.00 before allowances, tiers, or other billing components.
  • A $100 budget covers about 28,571 units at this linear rate.

About AssemblyAI

Speech-to-text and audio intelligence APIs billed per hour of audio. The AssemblyAI Universal-3.5 Pro speech-to-text page covers this meter in detail; the AssemblyAI hub gathers the rest of the lineup with a pricing table, list-rate ranges, and calculators side by side.

See AssemblyAI services, APIs, and the pricing table

This calculator applies the published unit rate linearly. Included quotas, tiered prices, minimum commitments, regional charges, and other billing components may change the actual total.

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