Google

Veo 3.1

Veo 3.1 is Google's flagship video model and makes clips with sound: dialogue, ambience and effects. It runs at 720p through OpenRouter, in 16:9 or 9:16, for 4, 6 or 8 seconds. You can start from text, from a start frame, or from a start and an end frame. At 605 credits a second it is the most expensive video model here, so test prompts on Veo 3.1 Fast or Lite first.

Veo 3.1 is made by Google. Prompt Generator is independent and not affiliated with Google; we run the model through OpenRouter.

2,420 credits
Model
Veo 3.1 · Google
Cost
2,420 credits

Your results appear here when you press Generate.

Specs

Vendor
Google
Type
Video
Price
605 credits per second
Aspect ratios
16:9, 9:16
Durations
4s, 6s, 8s
Frames
Start and end frame
Served via
OpenRouter

Best for

  • Scenes with spoken lines
  • Ads and hero clips where sound matters
  • Final versions of prompts tested on cheaper Veo tiers

Tips

  • Write spoken lines in quotes and say who speaks them.
  • Check the idea on Veo 3.1 Lite (80 credits a second) before paying for the full model.

Tools that use Veo 3.1

Questions

1What does a Veo 3.1 clip cost?
605 credits per second of video: a 4-second clip is 2,420 credits and a 8-second clip is 4,840. If a run fails, the credits go back to your balance; runs stopped by the model's safety filter are refunded up to 10 times a day.
2Which lengths, sizes and frames does Veo 3.1 take?
Clips of 4, 6 or 8 seconds, in 16:9 or 9:16. You can add a start frame, or a start and an end frame (PNG, JPEG or WebP, up to 12 MB each), and Veo 3.1 animates between them; without frames it works from text.
3Can I use what I make with Veo 3.1 in paid work?
Yes, when you made it on a paid plan or after buying credits. Results made only with the free sign-up credits are for personal, non-commercial use. Anything you upload must be yours to use, and people shown in it must have agreed.

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