AssemblyAI API pricing, checked at the source
Transcription prices for AssemblyAI's pre-recorded and streaming models, read off AssemblyAI's own pricing page with a link on every row. Estimate a month of audio below.
AssemblyAI speech to text prices
Prices as the vendor lists them, with a per-hour column so rows compare. Add-ons such as speaker labels cost extra; see the billing notes.
| Model | Price as listed | Per hour | Notes | Source |
|---|---|---|---|---|
| Universal-2pay as you go, pre-recorded | $0.15 per hour | $0.15 | 99 languages | Sourcechecked 2026-10-25 |
| Universal-Streamingpay as you go, streaming | $0.15 per hour | $0.15 | English only | Sourcechecked 2026-10-25 |
| Universal-Streaming Multilingualpay as you go, streaming | $0.15 per hour | $0.15 | English, Spanish, German, French, Portuguese, Italian | Sourcechecked 2026-10-25 |
| Universal-3.5 Propay as you go, pre-recorded | $0.21 per hour | $0.21 | 18 languages | Sourcechecked 2026-10-25 |
| Sync APIpay as you go, sync (clips up to 2 minutes) | $0.30 per hour | $0.30 | Universal-3.5 Pro accuracy in one call | Sourcechecked 2026-10-25 |
| Universal-3.6 Pro Realtimepay as you go, streaming | $0.45 per hour | $0.45 | 32 languages | Sourcechecked 2026-10-25 |
| Dictation APIpay as you go | $0.62 per hour | $0.62 | Cleaned-up text from one utterance, clips up to 120 seconds | Sourcechecked 2026-10-25 |
Write 40, 250 or 5k.
100 hours of audio a month costs from $15.00 (Universal-2) to $62.00 (Dictation API).
| Model | Per month | Per hour |
|---|---|---|
| Universal-2pay as you go, pre-recorded | $15.00 | $0.15 |
| Universal-Streamingpay as you go, streaming | $15.00 | $0.15 |
| Universal-Streaming Multilingualpay as you go, streaming | $15.00 | $0.15 |
| Universal-3.5 Propay as you go, pre-recorded | $21.00 | $0.21 |
| Sync APIpay as you go, sync (clips up to 2 minutes) | $30.00 | $0.30 |
| Universal-3.6 Pro Realtimepay as you go, streaming | $45.00 | $0.45 |
| Dictation APIpay as you go | $62.00 | $0.62 |
List prices in USD on 2026-10-25, before tax, free tiers and add-ons. Rows billed another way are in the price table only.
How the bill is worked out
Free tier
Add-ons cost extra per hour
Multichannel is billed per channel
Streaming concurrency is free
AssemblyAI API pricing questions
How much does the AssemblyAI API cost?
Speech to text runs from $0.15 (Universal-2) to $0.62 (Dictation API) per hour.
Where do these prices come from?
From AssemblyAI's own pricing page, https://www.assemblyai.com/pricing, checked on 2026-10-25. Every row links to it. When a price cannot be confirmed, the row says to check the vendor's page instead of showing a number.
Does AssemblyAI have a free tier?
Yes. No credit card is needed, and the free tier covers up to 185 hours of pre-recorded and up to 333 hours of streaming transcription.
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