Generation of video with audio
Generation of video with audio
Simultaneously generates not only video but also audio, allowing you to create highly immersive and polished video content all at once.
Models in this series
Each model has its own Playground, pricing, and field docs. Filter by capability to open the one you need.
Recommend
HappyHorse 1.1
text to video
HappyHorse
A video model that quickly generates bright, dynamic videos with boundless creativity.
Recommend
HappyHorse 1.1
refs image to video
HappyHorse
Generate dynamic, happy, and vivid videos from images at high speed
Recommend
HappyHorse 1.1
image to video
HappyHorse
Bring still images to life and quickly generate lively, joyful videos
The HappyHorse 1.1 series at a glance
Model id and a short note on what each capability is for.
| Model | ID | Description |
|---|---|---|
| HappyHorse 1.1（text to video） | happyhorse-video-1.1-text-to-video | A video model that quickly generates bright, dynamic videos with boundless creativity. |
| HappyHorse 1.1（refs image to video） | happyhorse-video-1.1-refs-image-to-video | Generate dynamic, happy, and vivid videos from images at high speed |
| HappyHorse 1.1（image to video） | happyhorse-video-1.1-image-to-video | Bring still images to life and quickly generate lively, joyful videos |
Key Features
It is equipped with features that support versatile expression, such as video generation with audio and referencing multiple assets.
Coconuts Moment
A moment of high-speed photography brimming with dynamism. The milky-white milk dynamically splashes out from a coconut splitting in the air, and the sunlight of the tropics shines through the water droplets. It conveys a sense of luxury and sophistication.
Prompt
A high-speed cinematic shot of a coconut splitting in the air. The white, creamy milk splashes dynamically based on fluid physics. Sunlight penetrating the water droplets, palm leaves swaying in the breeze in the backgro…
Generated with HappyHorse 1.1
Generated with Vidu Q2
Generated with Vidu Q3 Pro
The hustle and bustle of the royal capital (in the style of a JRPG)
The nostalgic JRPG style of the SFC era. Dot-art characters roam the vibrant fantasy streets of the city.
Prompt
A classic 16-bit JRPG pixel art style. A warm and bright plaza in the royal city at dusk. A party of three - a swordsman, a magician, and a priest - walk from the foreground to the background of the screen. Other NPCs (v…
Generated with HappyHorse 1.1
Generated with Vidu Q2
Generated with Vidu Q3 Pro
A girl dancing street dance on the rooftop in the neon rain.
On the rooftop of the futuristic city, a cyber girl passionately performs street dance in the neon rain, all captured by a dynamic camera.
Prompt
On the rooftop of the futuristic city, a cyber girl in a glowing jacket is dancing street dance. Neon rainwater reflects on the ground, with high-speed passing hover cars and giant holographic advertisements in the backg…
Generated with HappyHorse 1.1
Generated with Vidu Q2
Generated with Vidu Q3 Pro
Featured use cases
Typical jobs this series is used for.
Short-form video production for social media
Quickly create videos with audio from text prompts, streamlining short-form content creation for social media and marketing.
Creation of character profile videos
Based on up to 9 reference images, you can generate videos with natural motion while maintaining the character's design and atmosphere.
Still image animation
Transform illustrations and photos into dynamic videos of up to 15 seconds, achieving highly expressive visual effects.
Fantasy and World-Building Video Production
Supporting a variety of art styles such as cyberpunk and anime, it allows you to build vibrant and original scenes.
Compare with other models
Check production limits and starting credit cost before you pick another model for the same job.
| Model | Max clip duration (single run) | Multimodal reference inputs | Max resolution | Native audio | Sousaku starting price |
|---|---|---|---|---|---|
| HappyHorse 1.1 | Up to 15 seconds | Up to 9 images | Up to 1080P | ✅ | 4 Credits/s |
| Vidu Q2 | Up to 10 seconds | Up to 3 images | Up to 1080P | ❌ | 2 Credits/s |
| Vidu Q3 Pro | Up to 16 seconds | ❌ | Up to 1080P | ✅ | 2 Credits/s |
Quick start guide
From sign-up to your first successful call. The same steps work for every model.
Step 1
Create your account
Sign up and verify so you can issue an API key and use Playground.
Step 2
Choose a model in this series
Open a card above to see that model's details, pricing, and field docs.
Step 3
Try it in Playground
Confirm inputs and parameters in the form before you automate.
Step 4
Copy the model id and fields
The field docs on the detail page list required parameters. Use the same names in create_task.
Step 5
Integrate and poll
Call the generate API with your key, poll until the task succeeds, then download the result.
Step 6
Check usage
Track credit use on the model's pricing page and in the dashboard.
FAQ
Explore other series
Other series on Sousaku. One API key, one task flow.