AssemblyAI Speech-to-text API
Audio duration; model and add-ons change the rate.
Voice AI. Metered pricing.
What the company publishes
- Pricing mechanism
Metered
- Chargeable unit
Audio duration; model and add-ons change the rate
- Included allowance
Free tier for pre-recorded and streaming transcription
- Packaging
Pay as you go and custom pricing
- Credits or prepayment
Not publicly specified
- Overage treatment
Pay as you go has no included paid allowance
- Enterprise exceptions
Custom pricing is offered
Checked Nov 3.
Source notes
The pricing page lists hourly rates by speech model and separate add-on feature rates.
Its FAQ says the free tier includes pre-recorded and streaming hours and pay-as-you-go invoices monthly for actual usage.
Its FAQ says multichannel audio is billed per channel; the pricing tables include Custom.
Lago analysis
- Tradeoff
A direct duration meter is easy to explain, but add-ons and channels can change the final bill.
- Billing and revenue work
Meter duration per channel and feature; attribute add-on charges to the same session or file.
This is an implementation inference, not a claim about the company's internal systems or Lago usage.