HappyHorse 1.1 I2V
HappyHorse 1.1 I2V costs $0.0000/clip on FairStack — a image to video model for Bringing photos to life with sound, Character animation from a portrait, Premium image-to-video. No subscription required. Pay per generation with full REST API access. FairStack applies a transparent 20% margin on infrastructure cost so you always see the real price.
What is HappyHorse 1.1 I2V?
HappyHorse 1.1's image-to-video mode animates a single still image into a 3-15 second clip with synchronized native audio, Foley, and multilingual lip-sync. Aspect ratio follows the input image; output is 720p or 1080p. Served from Kie.ai at $0.1125/s (720p) or $0.145/s (1080p) with an automatic fal.ai fallback — materially cheaper than the 1.0 generation it replaces as the default.
Key Features
What are HappyHorse 1.1 I2V's strengths?
What are HappyHorse 1.1 I2V's limitations?
What is HappyHorse 1.1 I2V best for?
How much does HappyHorse 1.1 I2V cost?
How does HappyHorse 1.1 I2V perform across capabilities?
HappyHorse 1.1 — Kie.ai primary ($0.1125/s 720p), fal.ai fallback — i2v
How do I use the HappyHorse 1.1 I2V API?
curl -X POST https://api.fairstack.ai/v1/generations/video \
-H "Authorization: Bearer $FAIRSTACK_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "happyhorse-1-1-i2v",
"prompt": "Your prompt here"
}'import requests
response = requests.post(
"https://api.fairstack.ai/v1/generations/video",
headers={
"Authorization": f"Bearer {FAIRSTACK_API_KEY}",
"Content-Type": "application/json",
},
json={
"model": "happyhorse-1-1-i2v",
"prompt": "Your prompt here",
},
)
result = response.json()
print(result["url"])const response = await fetch(
"https://api.fairstack.ai/v1/generations/video",
{
method: "POST",
headers: {
Authorization: `Bearer ${process.env.FAIRSTACK_API_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({
model: "happyhorse-1-1-i2v",
prompt: "Your prompt here",
}),
}
);
const result = await response.json();
console.log(result.url);What parameters does HappyHorse 1.1 I2V support?
Frequently Asked Questions
How much does HappyHorse 1.1 I2V cost?
HappyHorse 1.1 I2V costs $0.0000/clip on FairStack as of 2026-07-25. This price includes FairStack's transparent 20% margin on infrastructure cost. No subscription or monthly fee — you pay per generation only. Minimum deposit is $1.
What is HappyHorse 1.1 I2V and what is it best for?
HappyHorse 1.1's image-to-video mode animates a single still image into a 3-15 second clip with synchronized native audio, Foley, and multilingual lip-sync. Aspect ratio follows the input image; output is 720p or 1080p. Served from Kie.ai at $0.1125/s (720p) or $0.145/s (1080p) with an automatic fal.ai fallback — materially cheaper than the 1.0 generation it replaces as the default. HappyHorse 1.1 I2V is best for Bringing photos to life with sound, Character animation from a portrait, Premium image-to-video. Available via FairStack's REST API with curl, Python, and Node.js SDKs.
Does HappyHorse 1.1 I2V have an API?
Yes. HappyHorse 1.1 I2V is available via FairStack's REST API at api.fairstack.ai. Send a POST request to /v1/generations/video with your API key and prompt. Works with curl, Python requests, Node.js fetch, and any HTTP client. No SDK installation required.
How does HappyHorse 1.1 I2V compare to other video models?
HappyHorse 1.1 I2V excels at Bringing photos to life with sound, Character animation from a portrait, Premium image-to-video. It is a image to video model priced at $0.0000/clip on FairStack. Key strengths: Cheaper than HappyHorse 1.0, Rich native audio. Compare all video models at fairstack.ai/models.