Question 1

What is veo-3.1-fast and how does it differ from Veo 3 Fast?

Accepted Answer

veo-3.1-fast is Google's improved version of Veo 3 Fast, offering higher visual fidelity, context-aware audio generation, and last frame support. It produces more detailed and coherent video output while maintaining fast generation speeds, making it better suited for professional content creation workflows.

Question 2

Does veo-3.1-fast generate audio automatically with the video?

Accepted Answer

Yes, veo-3.1-fast automatically generates synchronized native audio including natural conversations, sound effects, and ambient soundscapes. The audio is precisely timed to match the video content without requiring a separate audio pipeline, streamlining the production process significantly.

Question 3

What video resolutions and aspect ratios does veo-3.1-fast support?

Accepted Answer

veo-3.1-fast outputs video at 720p or 1080p resolution at 24 FPS. It supports both landscape (16:9) and portrait (9:16) aspect ratios, and allows flexible duration control with 4-second, 6-second, or 8-second video clips to suit different creative and distribution needs.

Question 4

Can veo-3.1-fast generate video from an image?

Accepted Answer

Yes, veo-3.1-fast supports image-to-video transformation, converting static images into dynamic, motion-rich videos while preserving the visual identity of the source material. It also accepts up to 3 reference images to guide character appearance, visual style, and consistency across the generated video.

Question 5

What is last frame support in veo-3.1-fast?

Accepted Answer

Last frame support means veo-3.1-fast accepts both a starting frame and an ending frame, then generates a smooth, coherent video transition between them. This feature enables precise narrative and visual control, allowing creators to define exactly how a scene begins and ends.

Question 6

Who is veo-3.1-fast designed for on CRAISEE?

Accepted Answer

veo-3.1-fast on CRAISEE is designed for filmmakers, content creators, marketers, and developers who need professional-grade video output at production pace. Its fast generation speed, high fidelity, and native audio make it ideal for rapid iteration cycles and commercial content pipelines.

Question 7

How many reference images can I use with veo-3.1-fast?

Accepted Answer

veo-3.1-fast supports up to 3 reference images per generation. These images guide the model on character appearance, visual style, and consistency, helping ensure that the generated video aligns closely with your intended aesthetic and subject matter across scenes.

Question 8

Is veo-3.1-fast available via API or only through CRAISEE?

Accepted Answer

veo-3.1-fast is provided through Replicate as the API provider and is accessible on the CRAISEE platform. This means developers can integrate it programmatically via Replicate's API, while creators can also use it directly through CRAISEE's interface for streamlined video generation workflows.

veo-3.1-fast - AI Model Guide