# Veo 3.1 Fast in Clip Studio Video Lab > A faster, lower-cost Veo 3.1 SKU for cinematic shots, guided frames, references, optional audio, and up to 4K. Canonical page: https://clipstudio.ai/ai-video-models/veo-3-1-fast ## Answer Veo 3.1 Fast keeps Veo’s directed-shot language—text, a start image, first and last frames, or up to three references—at a lower per-second rate than Veo 3.1. Use it when you want Veo motion and optional audio without the premium SKU’s cost. ## Best for Faster Veo drafts, campaign tests, and 720p–4K shots where turnaround and cost matter as much as look. ## Specs - Duration: 4, 6, or 8 seconds - Resolution: 720p, 1080p, or 4K - Aspect ratio: 16:9 or 9:16 - Audio: Optional generated audio - Input support: Text prompt, Animate image, First → last, Up to 3 reference images ## Strengths - Same Veo 3.1 workflows - Lower per-second cost - Optional generated audio ## Considerations - Supports 16:9 and 9:16 - Reference mode uses an 8-second shot ## Prompt tip Describe the subject, action, camera move, lighting, and sound as separate beats in one concise shot direction. ## Official documentation - [Veo 3.1 Fast model documentation](https://fal.ai/models/fal-ai/veo3.1/fast) - [Veo 3.1 Fast image-to-video documentation](https://fal.ai/models/fal-ai/veo3.1/fast/image-to-video) ## FAQs ### What is Veo 3.1 Fast best for? Veo 3.1 Fast is the lower-cost Veo SKU for directed cinematic shots when you want Veo’s look without the full Veo 3.1 rate. ### Can Veo 3.1 Fast animate images? Yes. Video Lab supports a starting image, first and last frames, or up to three reference images with Veo 3.1 Fast. ### How is Veo 3.1 Fast different from Veo 3.1? It covers the same durations, aspect ratios, resolutions, and image workflows at a lower per-second rate. Choose Veo 3.1 when you want the premium SKU. ## Related - [Video Lab](https://clipstudio.ai/video-lab.md) - [All models](https://clipstudio.ai/ai-video-models.md)