Live Captions API pricing rules

Question

How does the Live Captions API pricing work?

Applies To

• Live Captions API

Answer

Live Captions is charged based on the number of audio streams (or StreamIDs) that publish captions.

• Pricing is based on the duration of each participant’s audio being sent to a transcription end point @ $0.025 per minute/participant.
• Pricing does not depend on the number of participants subscribing to captions
• Unit of metric - Live Captions Minutes

Case 1

(A) participant in a call 

(A) publishes captions 

(A) subscribes to captions of (A)

1. E.g. 30 minutes call 
2. Publish time (A): 01 minutes and Stop time (A): 28 minutes
3. Total live captions minutes: 27 minutes

Case 2

(A) & (B) are participants in a call 

(A) publishes captions 

(B) publishes captions 

1. E.g. 30 minutes call 
2. Publish time (A): 01 minutes and Stop time (A): 28 minutes
3. Total for (A): 27 minutes 
4. Publish time (B) : 00 minutes and Stop time (B) : 30 minutes
5. Total for (B): 30 minutes 
6. Total live captions minutes for A&B = 27+30 minutes 

Case 3

(A), (B) & (C) are participants in a call 

(A) publishes captions 

(B) publishes captions 

(C) does not publish

1. E.g. 30 minutes call 
2. Publish time (A): 01 minutes and Stop time (A): 28 minutes
3. Total for (A): 27 minutes 
4. Publish time (B): 00 minutes and Stop time (B): 30 minutes
5. Total for (B): 30 minutes 
6. (C) does not publish. (C) only subscribes 
7. Total live captions minutes for A&B&C = 27+30+0 minutes