Happy Horse 1.1 API

alibaba/happyhorse-1-1
Designed for short-form cinematic generation, prompt-driven storytelling, and scalable content workflows.
Output
$0.182 / sec (variable)

How to use Happy Horse 1.1 API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to alibaba/happyhorse-1-1.
import requests, time

headers = {"Authorization": "Bearer " + AIMLAPI_KEY}
job = requests.post(
    "https://api.aimlapi.com/v2/video/generations",
    headers=headers,
    json={
      "model": "alibaba/happyhorse-1-1",
      "prompt": "A serene timelapse of clouds over a mountain range"
    },
).json()
gid = job["id"]

while True:
    res = requests.get(f"https://api.aimlapi.com/v2/video/generations?generation_id={gid}", headers=headers).json()
    if res.get("status") in ("completed", "error"):
        break
    time.sleep(5)
print(res["video"]["url"])
const headers = {
  Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
  "Content-Type": "application/json",
};
const job = await (await fetch("https://api.aimlapi.com/v2/video/generations", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "model": "alibaba/happyhorse-1-1",
    "prompt": "A serene timelapse of clouds over a mountain range"
  }),
})).json();

let res;
do {
  await new Promise((r) => setTimeout(r, 5000));
  res = await (await fetch(`https://api.aimlapi.com/v2/video/generations?generation_id=${job.id}`, { headers })).json();
} while (!["completed", "error"].includes(res.status));
console.log(res.video.url);
# submit the generation — the response contains the job "id"
curl -X POST 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 serene timelapse of clouds over a mountain range"}'

# then poll until status is "completed" — video.url holds the result
curl "https://api.aimlapi.com/v2/video/generations?generation_id={id}" -H "Authorization: Bearer $AIMLAPI_KEY"

OpenAI-compatible — swap the base URL and it works with your existing SDK.

Happy Horse 1.1 API Pricing

TypePrice
Output
$0.182 / sec (variable)

Happy Horse 1.1 Benchmarks

BenchmarkScoreWhat it measuresSourceRetrieved
Image-to-Video Arena
1312
Human preference Elo from blind pairwise comparisons of videos animated from the same input image, measured independently by Artificial AnalysisSourceSeptember 22, 2026

Happy Horse 1.1 vs other models

ModelInputOutputContextBest for
$0.182 / sec (variable)
Video generation
$0.26 / sec (variable)
Video generation
$0.13 / sec (variable)
Video generation
$1.95 / 1M tokens
$22.75 / 1M tokens
Video generation
$0.09243–$1.014 / sec (by resolution)
Cinematic video + native audio

Frequently asked questions

Happy Horse 1.1 takes image, text as input and returns video.

Happy Horse 1.1 is priced at $0.182 / sec (variable).

Happy Horse 1.1 is billed per generation — a fixed charge per output rather than by prompt length.

Yes, Happy Horse 1.1 accepts image input as well as a text prompt.

Happy Horse 1.1 was built by Alibaba Cloud.

Use alibaba/happyhorse-1-1 as the model id on AI/ML API.

Yes. Happy Horse 1.1 is served through AI/ML API, so the same key and endpoint format used for other models applies.

Yes. It supports reference-to-video generation in addition to image-to-video and text-to-video.

Start building with Happy Horse 1.1

Get API Key
1000+ models, one API.