POST
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const axios = require('axios');
const api_key = "YOUR API-KEY";
const url = "https://api.segmind.com/v1/veo-3-fast";
const data = {
"prompt": "A serene forest landscape at dawn, mist hovering over the trees, a deer slowly wandering through the frame, softened by early light.",
"generate_audio": false
};
(async function() {
try {
const response = await axios.post(url, data, { headers: { 'x-api-key': api_key } });
console.log(response.data);
} catch (error) {
console.error('Error:', error.response.data);
}
})();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.
image_urlstr ( default: 1 )
Provide the URL of the image to be relit. Use a URL from cloud storage like S3.
generate_audioboolean ( default: 1 )
Generate Audio.
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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