Balanced speed and quality
Veo 3.1 Fast sits in the middle of the Veo 3.1 family — faster than the flagship Veo 3.1 with more capability than Veo 3.1 Lite. Native audio generation (sound effects, natural conversations, and ambient soundscapes) is included, along with multi-reference image input (up to 3 images), and 4K resolution support. Generation times are 60–90 seconds for 720p and 90–120 seconds for 1080p, making it practical for production workflows where quality and speed need to be balanced. The Transformer backbone with spatio-temporal patches is shared across the Veo 3.1 family.Capabilities
Native audio generation
Sound effects, natural conversations, and ambient soundscapes generated natively alongside the video — accurate A/V synchronization.
Up to 4K resolution
Supports 720p, 1080p, and 4K output — choose the resolution tier that fits your delivery requirements.
3 reference images
Multi-reference input with up to 3 images for subject appearance, visual style, and scene composition anchoring.
8-second clips
Fixed 8-second generation window — a focused length for short-form content, product showcases, and social media.
Frame-to-frame generation
Supports image-to-video with natural, physically plausible motion from a reference starting frame.
Faster than flagship Veo 3.1
Shorter generation times than Veo 3.1 — 60–120 seconds at 720p–1080p for production-pace workflows.
Veo 3.1 family comparison
| Model | Audio | Duration | Max res | Speed | Cost |
|---|---|---|---|---|---|
| Veo 3.1 Lite | No | 4/6/8s | 1080p | Fast | Lowest |
| Veo 3.1 Fast | Yes | 8s | 4K | Balanced | Medium |
| Veo 3.1 | Yes | Up to 60s | 4K | Slower | Highest |
Specifications
| Feature | Details |
|---|---|
| Developer | Google DeepMind |
| Resolution | 720p, 1080p, 4K |
| Duration | 8 seconds |
| Frame rate | 24 FPS |
| Audio | Sound effects, conversations, ambient |
| Reference images | Up to 3 |
| Aspect ratios | 16:9, 9:16 |
| Generation time | ~60–90s (720p), ~90–120s (1080p), ~2–3min (4K) |
| Architecture | Transformer backbone, spatio-temporal patches |
How to use
Write your prompt
Include scene description, subject behavior, camera movement, and audio environment details.
Upload reference images (optional)
Add up to 3 reference images for character appearance or visual style anchoring.
Select resolution
Choose 720p, 1080p, or 4K depending on your output requirements and credit budget.
Prompting tips
- Describe audio and visual together — “A waterfall cascades in the background, the sound of rushing water filling the air” integrates visual and audio descriptions in one natural sentence.
- Use reference images for product or character consistency — Upload a product shot or character photo as a reference to anchor the visual in your generated clip.
- Be specific about camera framing — “Tight close-up,” “wide establishing shot,” or “over-the-shoulder angle” guide Veo 3.1 Fast’s framing decisions.
Example prompts
A barista steams milk in an artisan coffee shop. Close-up on the steam wand, foam forming. Warm ambient café sounds — gentle music and soft conversation in the background. 8 seconds, 1080p.
A coastal drone shot at sunrise. Wide angle, slow forward movement over calm ocean. Seabird calls and light wind. Golden light. 8 seconds, 4K.
Compare models
| Model | Audio | Duration | Resolution | Speed | Best for |
|---|---|---|---|---|---|
| Veo 3.1 Fast | Yes | 8s | Up to 4K | Balanced | Audio-visual production, 4K |
| Veo 3.1 Lite | No | 4/6/8s | 1080p | Fastest | Cost-efficient, no audio |
| Veo 3.1 | Yes | Up to 60s | Up to 4K | Slowest | Long-form, broadcast quality |
| Sora 2 Pro | Yes | 25s | 1080p | Standard | Long-form A/V, physics |