HappyHorse 1.1
HappyHorse 1.1 is Alibaba ATH's video model with sharper motion and realism across text-, image-, and reference-to-video. Access it through Velokey's unified endpoint with below-list pricing.
Use cases
Cinematic ads & brand videos · Social & short-form content
Input
Text, image, or video
Output
Video
Billing
Per second
Sign up to get $0.5 in free credits — about 20 free images
Generate a video
Enter a prompt and click Generate
HappyHorse 1.1 video examples
👆 Click on any example above to view full details, prompt, and parameters
Pricing details
Transparent usage-based pricing with no hidden fees.
Detailed Pricing
Usage-based pricing breakdown
| Spec | Price | Official | Savings |
|---|---|---|---|
| 720p/second | 0.112 Credits≈$0.112 | 0.14 Credits | -20% |
| 1080p/second | 0.144 Credits≈$0.144 | 0.18 Credits | -20% |
Billing Rules
- Output price varies by model, resolution, quality, duration, or token usage.
- Uploaded reference files may be charged separately when supported.
- Add-on capabilities such as web search or image search may be billed per request.
- Token-based models are billed by input and output tokens.
- If the primary route is unavailable, Velokey may automatically switch to a stable fallback route when possible.
- Usage is pay-as-you-go with transparent credit deduction.
* Final cost depends on the generated result.
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Affordable HappyHorse 1.1 API
Access Alibaba ATH's HappyHorse 1.1 on Velokey — cinematic text-to-video, high-consistency image-to-video, and multi-image reference-to-video with up to 9 references, through a unified endpoint with below-list pricing.
Meet HappyHorse 1.1 and its API access
HappyHorse 1.1 is Alibaba ATH's improved successor to HappyHorse 1.0, available through Kie.ai. It upgrades prompt understanding, motion quality, character consistency, and visual realism across text-to-video, image-to-video, and reference-to-video generation, delivering smoother actions, better camera control, stronger identity preservation, and more consistent outputs. Velokey provides an affordable, easy-to-integrate HappyHorse 1.1 API: a unified endpoint, a clear request flow, and below-list pricing for creative pipelines, marketing automation, and production video tools.
Advanced cinematic text-to-video
Stronger semantic understanding and cinematic camera movement produce realistic motion and richer visual storytelling, with more accurate prompt adherence and smoother scene generation than 1.0.
View Documentation →
High-consistency image-to-video
Preserves character identity, visual style, and scene details while improving motion quality, skin texture realism, text rendering stability, and cross-shot consistency.
View Documentation →
Multi-image reference-to-video
Generate videos from up to 9 reference images while maintaining subject appearance, scene composition, artistic style, and creative intent across sequences.
View Documentation →
Realistic motion & character consistency
Natural physical movement, smooth character actions, improved camera transitions, and enhanced visual aesthetics keep subjects consistent from shot to shot.
View Documentation →
How to deploy the HappyHorse 1.1 API on Velokey
Get started with just a few steps.
Sign up and get an API Key
Sign in to the Velokey console to generate an API Key that authenticates every request sent to HappyHorse 1.1.
Configure request parameters
Set model to happyhorse-1-1 and provide a prompt, an input image, or up to 9 reference images for text-to-video, image-to-video, or reference-to-video generation.
Integrate and start calling
Send requests to Velokey's unified endpoint to power creative tools, marketing pipelines, and automation, with usage managed in one console.
Real-world use cases for HappyHorse 1.1
From creative studios to marketing and product teams, covering many video scenarios.
Cinematic ads & brand videos
Cinematic camera movement and realistic motion make it fit for high-quality ads, promos, and brand videos from a single prompt.
Social & short-form content
Smoother actions and better camera control help produce short-form clips at scale for social and marketing channels.
Product & e-commerce demos
Turn a product image into motion with preserved detail — fit for e-commerce demos, showcases, and explainer clips.
Storyboarding & previz
Richer visual storytelling and accurate prompt adherence make it fit for storyboards and previsualization for film and animation.
Image-to-video animation
Bring a single character or scene image to life with preserved identity, style, and detail across the generated clip.
Brand-consistent multi-shot sequences
Reference-to-video with up to 9 images keeps subject, composition, and style consistent across multi-shot sequences.
Why choose Velokey for HappyHorse 1.1
Discount on list price
Call HappyHorse 1.1 at a lower price on Velokey — pay-as-you-go with no forced subscription, reducing upfront cost.
Unified API interface
One API Key accesses HappyHorse 1.1 and other models — no juggling multiple accounts and keys, simplifying integration.
Complete docs and integration guidance
Endpoint references, parameter details, and examples help you wire up text-, image-, and reference-to-video quickly.
Stable and highly available
Automatic failover and stable fallback routes maintain availability when the primary route is down, keeping production reliable.
API Reference
Complete API call examples and parameter descriptions
Endpoint
https://api.velokey.ai/v1/chat/completionsAuthentication
Bearer YOUR_API_KEYRequest Example
curl https://api.velokey.ai/v1/chat/completions \
-X POST \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "happyhorse-1.1-t2v",
"prompt": "A cinematic shot...",
"duration": 5,
"resolution": "720p"
}'Response Example
{
"id": "req_abc123",
"model": "happyhorse-1.1-t2v",
"created": 1234567890,
"data": { ... }
}HappyHorse 1.1 API FAQ
What's improved over HappyHorse 1.0?
HappyHorse 1.1 improves prompt understanding, motion quality, character consistency, and visual realism across text-to-video, image-to-video, and reference-to-video, delivering smoother actions, better camera control, stronger identity preservation, and more consistent outputs.
Which generation modes are supported?
Text-to-video (T2V), image-to-video (I2V), and multi-image reference-to-video (R2V). Reference-to-video accepts up to 9 reference images while maintaining subject appearance, scene composition, and artistic style.
How consistent is image-to-video?
Image-to-video preserves character identity, visual style, and scene details while improving motion quality, skin texture realism, text rendering stability, and cross-shot consistency.
How many reference images can I use?
Reference-to-video generation supports up to 9 reference images, maintaining subject appearance, scene composition, artistic style, and creative intent across sequences.
How is it billed on Velokey?
HappyHorse 1.1 is available through Velokey's unified endpoint with one API key and below-list pricing, billed by usage in a single console.
Start building with HappyHorse 1.1 today
Use one API key to access low-cost, stable AI models through Velokey.