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How does Synthesia credit consumption work for video edits?

Learn how editing your script, avatar, or voice changes the credits your video consumes when you regenerate it.

Written by Jess Diaz-Gomes

Each second of a video uses 2 credits. Ex: A one-minute video will consume 120 credits.


How Edits Affect Your Credits

Example: You have a 360 credit allowance per month. You've used 320 credits generating a 2 minutes and 40 second video, but then you decide to revise the script:

Script edits

Type of Revision

Example

Behavior

Existing words are removed

From: We will talk about avatars To: We will talk

No effect on consumption

Total: 320 credits

New words are added

From: We will talk about avatars To: We will talk about avatars and voices

Count duration of new words. It’s +1 seconds to the script. You have spent 2 additional credits.

Total: 322 credits

Existing words are replaced i.e. removal then addition

From: We will talk about avatars To: We will discuss voices

Count duration of new words. It’s +2 seconds to the script. So you have spent 4 additional credits.

Total: 324 credits

Order of existing words is changed

From: We will talk and avatars will listen To: Avatars will talk and we will listen

No effect on consumption

Total: 320 credits

Addition, removal and replacement of punctuation marks

-

No effect on consumption

Total: 320 credits

Avatar edits

Type of Revision

Example

Behavior

Avatar framing is changed (limited to full body & circle)

From: full body
To: circle

No effect on consumption

Avatar is removed

From: full body
To: voice only

No effect on consumption

Avatar is added

From: voice only
To: full body

Count duration for which the new avatar is visible

Avatar is replaced

From: Alex
To: Joe

Count duration for which the new avatar is visible

Avatar look is changed

From: Alex in casual outlook
To: Alex in business outlook

No effect on consumption

Voice edits

Type of Revision

Example

Behavior

Pronunciation is applied / changed

From: Porsche (Porshay)
To: Porsche (Porsh)

No effect on consumption

Voice tone is changed

From: EN-US Easy going
To: EN-US Soothing

No effect on consumption

Voice language or accent is changed

From: English US
To: English UK

Count duration of change towards consumption


💡 See Self-serve users guide to credits for how credits work across your whole plan, including monthly balances and other credit-consuming features like AI Dubbing and Bulk Personalization.

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