DEV Community

diwushennian4955
diwushennian4955

Posted on

VEO3 API Tutorial: Generate AI Videos in 5 Lines of Code (Python + JS) [2026]

#javascript #tutorial #python #ai

TL;DR: 3 lines of code to generate VEO3 videos at 5× cheaper than Google's official pricing. No waitlist. No complex GCP setup.

from nexaapi import NexaAPI
client = NexaAPI(api_key='YOUR_KEY')
response = client.video.generate(model='veo3', prompt='A sunset over the ocean', duration=8)
print(response.url)
Enter fullscreen mode Exit fullscreen mode

What is VEO3?

Google DeepMind's VEO3 is the most advanced AI video generation model ever released (Google I/O 2025). It's generated tens of millions of videos worldwide and is the first model to natively generate synchronized audio with video.

Key features:

  • 🎬 Cinematic quality with realistic physics
  • 🔊 Native audio — dialogue, sound effects, music in one pass
  • 4️⃣ 4K support (VEO3.1)
  • ✍️ Text-to-video and image-to-video

Why NexaAPI?

The official Google access requires Vertex AI enterprise setup with a waitlist. NexaAPI gives you:

  • ✅ Instant access — no waitlist
  • ✅ 5× cheaper than official pricing
  • ✅ OpenAI-compatible SDK (just change base_url)
  • ✅ 50+ models with one API key (VEO3, Flux, Sora, Kling, Claude, Whisper...)

Python Tutorial

Install 

pip install nexaapi
Enter fullscreen mode Exit fullscreen mode

Basic Generation 

from nexaapi import NexaAPI

client = NexaAPI(api_key='your_api_key_here')

response = client.video.generate(
    model='veo3',
    prompt='A cinematic shot of a golden sunset over the ocean, waves crashing, photorealistic 4K quality',
    duration=8,
    resolution='1080p',
    fps=24
)

print(f'Video URL: {response.url}')
print(f'Cost: ${response.cost}')
Enter fullscreen mode Exit fullscreen mode

Advanced (4K + Native Audio) 

response = client.video.generate(
    model='veo3',
    prompt='A slow-motion cherry blossom, petals falling, soft bokeh, 4K cinematic',
    duration=8,
    resolution='4k',
    aspect_ratio='16:9',
    audio=True  # 🔊 Native audio generation!
)
Enter fullscreen mode Exit fullscreen mode

Batch Generation 

prompts = [
    'A timelapse of a city skyline from day to night',
    'A slow-motion close-up of a blooming flower',
    'An aerial drone shot over a mountain range'
]

for i, prompt in enumerate(prompts):
    r = client.video.generate(model='veo3', prompt=prompt, duration=5)
    print(f'Video {i+1}: {r.url}')
Enter fullscreen mode Exit fullscreen mode

JavaScript Tutorial

Install 

npm install nexaapi
Enter fullscreen mode Exit fullscreen mode

Basic Generation 

import NexaAPI from 'nexaapi';

const client = new NexaAPI({ apiKey: 'your_api_key_here' });

const response = await client.video.generate({
  model: 'veo3',
  prompt: 'A cinematic golden sunset over the ocean, waves crashing, 4K quality',
  duration: 8,
  resolution: '1080p'
});

console.log('URL:', response.url);
Enter fullscreen mode Exit fullscreen mode

Express.js API Endpoint 

app.post('/generate-video', async (req, res) => {
  const { prompt, duration = 5 } = req.body;
  const response = await client.video.generate({ model: 'veo3', prompt, duration });
  res.json({ videoUrl: response.url, cost: response.cost });
});
Enter fullscreen mode Exit fullscreen mode

Pricing Comparison

Provider Price Waitlist SDK
NexaAPI 5× cheaper ❌ No ✅ Python + JS
Google Vertex AI Enterprise ✅ Yes Complex GCP
Replicate Higher Check ✅ Yes

Get Started

  1. Sign up: nexa-api.com
  2. Subscribe: rapidapi.com/user/nexaquency
  3. pip install nexaapi
  4. Generate your first video!

Full tutorial + Colab notebook: GitHub repo

Links: nexa-api.com | PyPI | npm | RapidAPI

Top comments (0)