Google Sound
Veo 3.1 Fast
Google. Generates synchronised audio.
Try Veo 3.1 Fast35 free credits
Synchronised audio & speech- Photoreal people
1080p
- Length
- 4–8s
- Resolution
- 720p · 1080p
- Aspect
- 16:9 · 9:16
- Sound
- Yes
- Image input
- Up to 3
- 5s clip
- 19 credits
Veo 3.1 Fast questions
What is Veo 3.1 Fast?
Veo 3.1 Fast is an AI video model from Google. Google. Generates synchronised audio. On buildmy.video it runs from a text prompt or a photo, alongside the other models on one credit balance.
How long can Veo 3.1 Fast videos be?
Veo 3.1 Fast renders clips from 4 to 8 seconds. Pick the length before you render; longer videos are several clips joined.
Does Veo 3.1 Fast generate sound?
Yes. Veo 3.1 Fast generates sound with the picture - effects, ambience and spoken lines with lip sync, at no extra charge.
What resolution does Veo 3.1 Fast support?
Up to 1080p, with 720p for faster, cheaper drafts. Aspect ratios: 16:9, 9:16.
How much does Veo 3.1 Fast cost?
A 5-second 720p clip costs 19 credits. New accounts get 35 free credits, and every render shows its price before you press generate.
