Categories / AssemblyAI
AssemblyAI
Visit Website ↗Speech-to-text and voice AI API for transcription, live captions and voice agents. Pay-as-you-go per hour of audio with no minimums or contracts, and a generous free tier.
Prices may change. These are correct as of 10 Nov 2026. Please confirm on the vendor's own page before you pay.
Verified. AssemblyAI is usage-only, so there are no monthly plans. Its blog and pricing page give the per-hour rates; we record them in the plan notes and say the paid price is found only as rates.
Free plan
Free plan: 185 hours of pre-recorded transcription (one time). Free tier: 185 hours pre-recorded plus 333 hours streaming, no card needed. Its pricing page words this as $50 in credits.
Plans and prices (USD)
Swipe the table sideways to see what each plan includes.
| Plan | Billed monthly | Yearly, per month | What it includes |
|---|---|---|---|
| Pay as you go per account |
$0 | not recorded |
|
| Custom per account |
not recorded | not recorded |
|
"Not recorded" means we did not find that price, not that it is free. Prices exclude tax and can differ by country.
Where it may fit
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Taken from what the vendor says the tool does. We have not tested it.
What to watch
- The free tier is stated as $50 in credits on one page and as 185 plus 333 hours on others.
- Medical Mode adds $0.15 an hour; keyterms prompting adds $0.05 an hour.
Sources
- AssemblyAI pricing page (checked 10 Nov 2026)
- AssemblyAI blog: speech recognition cost (checked 10 Nov 2026)
- AssemblyAI blog: speech-to-text API pricing guide (checked 10 Nov 2026)