Veo 3 Fast

Veo 3 Fast rapidly creates high-quality, 8-second videos with synchronized audio for diverse content needs.

API

If you're looking for an API, you can choose from your desired programming language.

POST

import requests
import base64

# Use this function to convert an image file from the filesystem to base64
def image_file_to_base64(image_path):
    with open(image_path, 'rb') as f:
        image_data = f.read()
    return base64.b64encode(image_data).decode('utf-8')

# Use this function to fetch an image from a URL and convert it to base64
def image_url_to_base64(image_url):
    response = requests.get(image_url)
    image_data = response.content
    return base64.b64encode(image_data).decode('utf-8')

# Use this function to convert a list of image URLs to base64
def image_urls_to_base64(image_urls):
    return [image_url_to_base64(url) for url in image_urls]

api_key = "YOUR_API_KEY"
url = "https://api.segmind.com/v1/veo-3-fast"

# Request payload
data = {
  "prompt": "A serene forest landscape at dawn, mist hovering over the trees, a deer slowly wandering through the frame, softened by early light."
}

headers = {'x-api-key': api_key}

response = requests.post(url, json=data, headers=headers)
print(response.content)  # The response is the generated image

RESPONSE

image/jpeg

HTTP Response Codes

200 - OKImage Generated

401 - UnauthorizedUser authentication failed

404 - Not FoundThe requested URL does not exist

405 - Method Not AllowedThe requested HTTP method is not allowed

406 - Not AcceptableNot enough credits

500 - Server ErrorServer had some issue with processing

Attributes

promptstr *

Defines the video theme or style. Use clear storytelling for narratives or vivid imagery for artistic shots.

To keep track of your credit usage, you can inspect the response headers of each API call. The x-remaining-credits property will indicate the number of remaining credits in your account. Ensure you monitor this value to avoid any disruptions in your API usage.

# Veo 3 Fast – AI Video Generation Model

## What is Veo 3 Fast?
Veo 3 Fast is Google’s streamlined generative AI video model engineered for rapid, cost-efficient video creation. Building on the original Veo 3 architecture, it produces high-quality 8-second clips at 720p resolution with synchronized audio, realistic lip sync, and natural facial expressions. Whether you’re a developer integrating video into an application or a content creator seeking quick social media assets, Veo 3 Fast delivers compelling results using five times fewer credits than its predecessor.

## Key Features
- **720p Video Output**  
  Consistent HD resolution with fluid motion, ideal for mobile and web playback.  
- **Synchronized Audio & Lip Sync**  
  Automatically aligns speech with mouth movements and ambient sound.  
- **Dual Input Modes**  
  • Text-to-Video: Generate scenes directly from descriptive prompts.  
  • Frames-to-Video: Animate uploaded image sequences into cohesive clips.  
- **Natural Facial Expressions**  
  Supports expressive character animations for realistic dialogues and storytelling.  
- **Integrated on Google Flow & Gemini**  
  Seamless API access for streamlined development and workflow automation.  

## Best Use Cases
1. **Social Media Content**  
   Rapidly prototype short promotional videos, product teasers, and brand stories.  
2. **Marketing & Ads**  
   Generate attention-grabbing 8-second spots with synchronized sound.  
3. **Educational Snippets**  
   Create bite-sized explainer clips, tutorials, or language learning vignettes.  
4. **Prototype Animations**  
   Test narrative flows or storyboard concepts without a full production pipeline.  

## Prompt Tips and Output Quality
- **Clear, Concise Prompts**  
  Define the scene’s style, mood, and key elements. Example:  
  “A serene forest landscape at dawn, mist hovering over the trees, a deer slowly wandering, softened by early light.”  
- **Leverage Frames-to-Video**  
  Upload 3–5 reference frames to guide motion direction and composition.  
- **Iterate for Detail**  
  For more intricate visuals, break your concept into multiple prompts and stitch segments post-generation.  
- **Expect Minor Trade-offs**  
  While Veo 3 Fast excels in speed and efficiency, extremely detailed textures or very long continuous shots may exhibit slight quality variations compared to full-scale models.

## FAQs

**Q: How fast is Veo 3 Fast compared to standard Veo 3?**  
A: Veo 3 Fast generates 8-second clips up to 3× quicker, optimizing throughput for high-volume workloads.

**Q: Can I customize audio tracks?**  
A: Yes. Supply custom audio or select built-in options—lip sync adjusts automatically.

**Q: What resolution does Veo 3 Fast support?**  
A: It outputs 720p HD video, balancing clarity and performance for online platforms.

**Q: Is there an API for developers?**  
A: Available via Segmind for seamless integration.

**Q: Best practices for text-to-video?**  
A: Use vivid, action-oriented language. Specify colors, movements, and emotions to guide the model.

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