Text to video
Elo with audio · text-to-video arena
Happy Horse 1.1 overview
Happy Horse 1.1 by Alibaba Cloud
Designed for short-form cinematic generation, prompt-driven storytelling, and scalable content workflows.
Happy Horse 1.1 specs
- Model ID
alibaba/happyhorse-1-1- Developer
- Alibaba Cloud
- Input
- Image, Text
- Output
- Video
- Endpoint
POST https://api.aimlapi.com/v2/video/generations
What is Happy Horse 1.1?
Happy Horse 1.1 is an AI video generation model designed for speed, visual quality, and predictable pricing. Unlike models that charge per clip with hidden minimum durations or resolution tiers buried in fine print, Happy Horse bills at a flat per-second rate.
The 1.1 update builds on its predecessor with tighter temporal consistency (frames that actually look like they belong to the same scene), improved handling of complex motion paths, and better colour fidelity at both supported resolutions. The result is generated footage that holds up under close inspection rather than falling apart on the fifth frame.
Dual resolution output
Generate at 720p for fast iteration and content testing, then switch to 1080p for final delivery without changing your prompt or workflow.
Temporal consistency
Frames are modelled to maintain subject identity and scene coherence across the full clip, reducing the jitter and drift that makes AI video feel artificial.
Colour fidelity
Version 1.1 ships with improved colour reproduction across both tiers, reducing washed-out midtones that affected the original release.
Motion control
Describe camera movement, subject direction, and pacing in natural language. The model translates intent into motion without requiring keyframe inputs.
Where it fits
Happy Horse 1.1 is a general-purpose video generation model, but it earns its keep in a few specific situations more than others.
Use cases
Short-form social media clips are a documented fit for Happy Horse 1.1, including vertical content for TikTok, Instagram Reels, and YouTube Shorts.
E-commerce product ads are another stated use case, especially turning product images into short animated ads with synchronized audio.
Marketing and brand campaign assets are also documented uses, including teasers, launch creatives, and multilingual campaign materials.
Short-drama or story-driven scenes are cited as a fit as well, with the model described as suitable for short narrative clips and multi-shot storytelling.
Happy Horse 1.1 benchmarks by 
Artificial Analysis
Human-preference results for Happy Horse 1.1 in text to video, silent video and image to video, next to models available on AI/ML API. Data retrieved Nov 3, 2026.
Models on AI/ML API
Arena results for models you can call with the same API key.
Text to video
Blind votes on clips with generated sound, made from a text prompt. Happy Horse 1.1 ranks #14 of 31.
Silent video
The same text-to-video task, judged as silent video. Happy Horse 1.1 ranks #15 of 36.
Image to video
Blind votes on clips with sound animated from a start image. Happy Horse 1.1 ranks #15 of 29.
Silent image to video
Clips animated from a start image, judged as silent video. Happy Horse 1.1 ranks #15 of 34.
Happy Horse 1.1 API pricing
| Usage | Price | Unit |
|---|---|---|
| Video generation | $0.14 | per second |
| Additional | $0.234 | per /sec |
The final price depends on request parameters such as resolution or duration.
Prices from the AI/ML API price list, checked on Nov 4, 2026.
Happy Horse 1.1 vs other video models: prices
AI/ML API rates for 5 models, per second.
| Model | Per second |
|---|---|
 Happy Horse 1.1 | $0.14 |
| Wan 3.0 Video | $0.05 |
| Wan 2.7 Image to Video | $0.1 |
| Wan 2.7 Reference to Video | $0.1 |
| Wan 2.7 Text to Video | $0.1 |
How to use the Happy Horse 1.1 API
View docs
Build with your agent
Give your agent the model details, code and documentation.
Paste it into your coding agent to build the integration.
1Get your API key
Create API keyexport AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"2Make your first request
curl 'https://api.aimlapi.com/v2/video/generations' \
-H "Authorization: Bearer $AIMLAPI_KEY" \
-H 'Content-Type: application/json' \
-d '{
"model": "alibaba/happyhorse-1-1",
"prompt": "A slow dolly shot through a sunlit greenhouse full of ferns, light dust in the air, natural camera motion"
}'import os
import requests
headers = {
"Authorization": f"Bearer {os.environ['AIMLAPI_KEY']}",
"Content-Type": "application/json",
}
payload = {
"model": "alibaba/happyhorse-1-1",
"prompt": "A slow dolly shot through a sunlit greenhouse full of ferns, light dust in the air, natural camera motion"
}
response = requests.post("https://api.aimlapi.com/v2/video/generations", headers=headers, json=payload, timeout=120)
response.raise_for_status()
print(response.json())const response = await fetch("https://api.aimlapi.com/v2/video/generations", {
method: "POST",
headers: {
Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({
"model": "alibaba/happyhorse-1-1",
"prompt": "A slow dolly shot through a sunlit greenhouse full of ferns, light dust in the air, natural camera motion"
}),
});
if (!response.ok) throw new Error(`HTTP ${response.status}`);
console.log(await response.json());The request returns a generation id. Poll GET https://api.aimlapi.com/v2/video/generations?generation_id=<id> until the status is completed.
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Happy Horse 1.1 FAQ
What inputs and outputs does Happy Horse 1.1 support?
Happy Horse 1.1 takes image, text as input and returns video.
How much does Happy Horse 1.1 cost?
Happy Horse 1.1 costs $0.14 per second on AI/ML API, billed as you go with no subscription.
How is Happy Horse 1.1 billed?
Happy Horse 1.1 costs $0.14 per second on AI/ML API, billed as you go with no subscription.
Can Happy Horse 1.1 take an existing image as input?
Yes, Happy Horse 1.1 accepts image input as well as a text prompt.
Who created Happy Horse 1.1?
Happy Horse 1.1 was built by Alibaba Cloud.
How do I call Happy Horse 1.1 on AI/ML API?
Use alibaba/happyhorse-1-1 as the model id on AI/ML API.
Is Happy Horse 1.1 available through a single API key?
Yes. Happy Horse 1.1 is served through AI/ML API, so the same key and endpoint format used for other models applies.
Can Happy Horse 1.1 use a reference image to guide the video it creates?
Yes. It supports reference-to-video generation in addition to image-to-video and text-to-video.
What is the Happy Horse 1.1 model ID?
Use alibaba/happyhorse-1-1 as the model parameter. Requests go to https://api.aimlapi.com/v2/video/generations with your AI/ML API key.