Veo 3.1 Fast
Google DeepMind's speed-optimised video model. Generate cinematic clips in under 30 seconds with start and end frame control.
What is Veo 3.1 Fast?
Veo 3.1 Fast is Google DeepMind's speed-optimised variant of the Veo 3.1 architecture. While its sibling Veo 3.1 focuses on maximum quality with multi-image reference support, Veo 3.1 Fast is engineered for rapid iteration — delivering cinematic results in sub-30-second generation times.
The model supports start and end frames, allowing you to anchor the beginning and end of a shot visually. This means you can direct specific transitions, controlled reveals, or any motion that needs to arrive at a defined destination frame.
Optional audio generation means you can choose to add AI-generated sound to your clip in the same pass, without switching to a separate audio tool. This makes Veo 3.1 Fast particularly effective for social content workflows where speed and audio both matter.
Sub-30s generation
Fastest in the Veo line
Up to 1080p
720p default, 1080p available
Start + End frame
Direct from A to B
Optional audio
Toggle on per generation
How to generate video with Veo 3.1 Fast on project.video
Open the composer
Go to your dashboard and open the generation composer. All models are available from a single unified workspace.
Select Veo 3.1 Fast
Click the model selector and choose Veo 3.1 Fast from the video models list. Your existing prompt stays in place.
Upload reference frames
Optionally drag a start frame and/or end frame. These anchor the visual context — subject, lighting, composition.
Set specs and generate
Choose aspect ratio (16:9 or 9:16), resolution, duration (4s/6s/8s), toggle audio, then hit generate.
Technical specs
Best use cases
High-volume social content
Generate 10+ variations in the time competitors produce one. Veo 3.1 Fast is the model for teams running content at scale across TikTok, Instagram, and YouTube Shorts.
Brand campaign ideation
Draft and discard quickly. Use Veo 3.1 Fast to prototype a dozen directions before committing resources to the final Veo 3.1 render.
Reference-directed transitions
Supply a start frame (current state) and end frame (target state) to generate precisely directed transitions — product reveals, before/after, scene changes.
Audio-paired short clips
Toggle audio on to generate video and sound in a single pass. Ideal for social reels, ad spots, and any content where you need both without post-production assembly.
Example prompts
Copy any of these to get started on project.video.
"Cinematic slow push-in on a black espresso cup on a marble counter, steam curling upward, soft side-lit window light, shallow depth of field, 16:9"
"Product reveal: sleek wireless headphones rotate on a clean white plinth, studio rim lighting, subtle reflection below, premium feel"
"Vertical social cut: person steps out of a taxi onto a rainy city street at night, neon reflections, handheld camera feel, 9:16"