📌 Executive Summary (TL;DR):
Alibaba's HappyHorse-1.0 sits at or near the top of the Artificial Analysis Video Arena for text-to-video and image-to-video, and Kie.ai sells it at $0.14/s (720p) and $0.24/s (1080p). HappyHorse-1.1 is $0.1125/s and $0.145/s.

• Best Overall Alternative: Vidgo API lists HappyHorse-1.0 text-to-video at $0.08/s (720p) and $0.16/s (1080p), 33%–43% below Kie.ai, with failed jobs refunded automatically. HappyHorse-1.1 is roughly the same price on both.
• Where Kie.ai still wins: HappyHorse-1.0 video edit ($0.14/s at 720p vs. Vidgo's $0.16/s) and 720p image-to-video, which Vidgo does not list for 1.0.

Prices were checked against public pricing pages in early October 2026.

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Who Sells HappyHorse by API, and What It Costs

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Kie.ai vs. Vidgo API, Mode by Mode

What this means for a 10-second clip: HappyHorse-1.0 text-to-video costs $1.40 at 720p on Kie.ai and $0.80 on Vidgo; at 1080p it is $2.40 versus $1.60. If your workload is mainly video editing, Kie.ai is cheaper. Note that Kie.ai bills video edit on input plus output duration.

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Why Look Beyond Kie.ai for HappyHorse

• Generation is the expensive part. Most HappyHorse traffic is text-to-video and image-to-video, and that is where Kie.ai's prices are 33%–43% higher than Vidgo's.
• HTTP 200 errors. Kie.ai returns errors with HTTP 200 and a code field.
• 14-day file retention and an account limit of 20 new tasks per 10 seconds.

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The Best Kie.ai HappyHorse Alternatives

1. Vidgo API — Cheapest HappyHorse-1.0 Generation

Vidgo API serves HappyHorse-1.0 as alibaba/happyhorse-1.0/text-to-video, /image-to-video, /reference-to-video, and /video-edit, and HappyHorse-1.1 as alibaba/happyhorse-1.1/text-to-video, /image-to-video, and /reference-to-video. All of them use POST /api/generate/submit.

• Strengths: Lowest HappyHorse-1.0 generation prices we found, automatic refunds, and one endpoint shared with Veo 3.1, Kling, Seedance, and Nano Banana.
• Trade-offs: Video edit costs more than on Kie.ai, and HappyHorse-1.0 image-to-video is listed at 1080p only.

2. PoYo.ai — Video Plus Chat

PoYo.ai combines video models with OpenAI-compatible chat under one balance, which suits agents that script and render in one flow.

3. APIDot — Backup Video Endpoint

APIDot is a budget aggregator that does not charge for failed requests, useful as a second HappyHorse provider.

4. fal.ai — Mainstream, Higher Price

fal.ai's HappyHorse-1.0 price is about $0.14/s at 720p, the same as Kie.ai and well above Vidgo.

5. Runware — Task-Based API

Runware lists HappyHorse-1.0 image-to-video at $0.723 for a 5-second 720p clip, about $0.145/s. Its API uses task arrays with client-generated UUIDs.

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Code: Kie.ai vs. Vidgo API for HappyHorse-1.0

# Kie.ai
curl -X POST https://api.kie.ai/api/v1/jobs/createTask \
  -H "Authorization: Bearer $KIE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "happyhorse/text-to-video",
    "callBackUrl": "https://your-domain.com/api/callback",
    "input": {
      "prompt": "a red kite rises over a windy beach at golden hour",
      "resolution": "720p",
      "duration": 10
    }
  }'

# Vidgo API
curl -X POST https://api.vidgo.ai/api/generate/submit \
  -H "Authorization: Bearer $VIDGO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "alibaba/happyhorse-1.0/text-to-video",
    "callback_url": "https://your-domain.com/api/webhook",
    "input": {
      "prompt": "a red kite rises over a windy beach at golden hour",
      "resolution": "720p",
      "duration": 10
    }
  }'

Field names can differ by model and mode; check each provider's model page before going live. Vidgo's are in the Vidgo API docs.

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Which HappyHorse Provider Should You Use?

What do you mostly do with HappyHorse?
 │
 ├── 1.0 text-to-video (720p or 1080p) ─────► 【Vidgo API】
 ├── 1.0 image / reference-to-video, 1080p ─► 【Vidgo API】
 ├── 1.0 image-to-video at 720p ────────────► 【Kie.ai】
 ├── 1.0 video edit ────────────────────────► 【Kie.ai】
 └── HappyHorse-1.1 ────────────────────────► 【Either】 (about equal)

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FAQ

What is the cheapest HappyHorse API in 2026?

For HappyHorse-1.0 text-to-video, Vidgo API is the cheapest we found at $0.08/s (720p) and $0.16/s (1080p). For video edit, Kie.ai is cheaper.

What is the difference between HappyHorse 1.0 and 1.1?

HappyHorse-1.1 focuses on character consistency and reference-based, multi-shot workflows. HappyHorse-1.0 ranks at or near the top of the Artificial Analysis Video Arena for text-to-video and image-to-video quality.

How long can HappyHorse videos be?

On Kie.ai, text, image, and reference modes generate 3 to 15 seconds, and video edit accepts 3- to 60-second inputs.

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👉 Try HappyHorse on Vidgo API with free trial credits.