Official Google Vertex AI
# Veo 3.1 Fast (G) High-performance cinematic video generation for professional storytelling. ## Overview Veo 3.1 Fast (G) represents the cutting edge of Google’s generative video technology, specifically optimized for speed and high-fidelity cinematic output. Designed for marketing professionals and creative agencies, this model excels at transforming text prompts into high-definition video sequences that maintain temporal consistency and visual coherence. Whether you are creating rapid prototypes for ad campaigns or final-cut assets, Veo 3.1 Fast provides the necessary control to bring complex visual narratives to life with minimal latency. Unlike standard generative models, Veo 3.1 Fast is engineered to understand the nuances of cinematic language, including camera movement, lighting conditions, and subject interaction. It bridges the gap between static imagery and dynamic storytelling, allowing users to leverage base images to guide the generation process. This makes it an indispensable tool for teams that need to iterate quickly without sacrificing the professional polish required for brand-safe content. ## Use Cases * **Social Media Ad Campaigns:** Generate high-engagement 9:16 vertical video content for platforms like TikTok and Instagram Reels. * **Storyboard Visualization:** Quickly turn static concept art into moving sequences to pitch creative directions to clients. * **Product B-Roll:** Create cinematic product showcases by using base images to maintain brand identity while generating dynamic movement. * **Transition Effects:** Utilize the video-to-video capabilities to create seamless transitions between different scenes in a brand film. * **Narrative Prototyping:** Rapidly iterate on visual storytelling concepts to test audience resonance before committing to full-scale production. * **Dynamic Backgrounds:** Generate high-quality, atmospheric background plates for motion graphics and compositing. ## Parameters Veo 3.1 Fast offers a robust set of configuration options to fine-tune your output. Users can adjust resolution, aspect ratio, and duration to meet specific platform requirements, while advanced controls like seed management and negative prompting ensure precise creative output. Please refer to the parameter configuration panel in the Pixloop interface to adjust settings such as sample count, prompt enhancement, and person generation policies. ## Tips for Best Results * **Leverage Prompt Enhancement:** Keep the 'enhance_prompt' setting enabled to allow Gemini to expand your creative vision into descriptive, high-quality tokens that the model understands best. * **Use First/Last Frames:** For maximum control over the narrative arc, provide both a first and last frame image to anchor the beginning and end of your video sequence. * **Strategic Negative Prompting:** Use the negative prompt field to explicitly exclude unwanted elements like 'blurry,' 'distorted faces,' or 'low resolution' to ensure a cleaner final output. * **Iterate with Seeds:** If you find a composition you like but want to tweak the motion, keep the seed consistent while adjusting the prompt slightly to refine the output. * **Mind the Duration:** For high-impact social ads, use the 4-second duration setting to ensure the content is punchy and optimized for short-form attention spans. ## About Veo 3.1 Fast is a flagship video generation model developed by Google, integrated into the Pixloop platform via the Vertex AI ecosystem. It builds upon Google’s extensive research in latent diffusion models and large-scale video synthesis, offering a highly optimized pipeline for professional creative workflows. By combining state-of-the-art generative capabilities with enterprise-grade infrastructure, it provides a reliable and scalable solution for modern ad agencies and creative teams.
Model input reference derived from preset schema.
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
| seed | number | No | null | Seed for deterministic video generation (0-4,294,967,295) |
| image | image | No | null | Base image for image-to-video generation. Supports JPEG, PNG formats |
| prompt | string | Yes | null | Text prompt describing the video you want to generate |
| last_image | image | No | null | Last frame image for video generation (optional) |
| resolution | select | No | "720p" | Resolution of the generated video |
| first_image | image | No | null | First frame image for video generation (optional) |
| storage_uri | string | No | null | Custom GCS storage location for output videos |
| aspect_ratio | select | No | "16:9" | Aspect ratio of the generated video |
| sample_count | select | No | "1" | Number of video variations to generate (1-4) |
| enhance_prompt | boolean | No | true | Use AI to enhance the prompt quality using Gemini |
| generate_audio | boolean | Yes | true | Whether to generate audio for the video (required for Veo 3.1 models) |
| negative_prompt | string | No | null | Describe content you want to prevent in the video |
| duration_seconds | select | No | "8" | Duration of the generated video in seconds (4, 6, or 8) |
| reference_images | image | No | [] | Reference images for style or asset guidance (max 3 images) |
| person_generation | select | No | "allow_adult" | Control people/face generation in videos |