Alibaba Happyhorse 1.0 Image To Video (Official Edition)

Alibaba's HappyHorse 1.0 image-to-video, official edition. Feed it a first frame, optionally describe what you want, and it animates the still into a video. The "official edition" matters here more than on most nodes: when HappyHorse first bubbled up in the community, it came with a plague of fake "open source" Hugging Face repos that the subreddits spent weeks flagging as scams and malware. This node is the legitimate path - it talks to the model through the API instead of asking you to download a suspicious .safetensors from a stranger.

HappyHorse sits in Alibaba's video lineup alongside the Wan family, and it skews toward fast, punchy results: 720P or 1080P, 3 to 15 seconds, seed control. The tooltips even tell you the watermark is on by default, which is the tell that this is the official commercial API - the no-watermark settings come with the vendor's terms attached.

How it works

BizyTRD cloud wrapper, official edition. first_frame (required) gets uploaded with your optional prompt, resolution (default 1080P), duration, and seed, and the API returns a VIDEO. Controls worth knowing:

• prompt is optional - you can generate motion from the frame alone.
• duration is an integer 3–15 seconds (default 10 in the schema; the tooltip says "default 5," the schema wins).
• seed (default 0; set to -1 for system-generated) gives you reproducible results when you find a good one.
• watermark defaults to on - flip it off only if your use is covered by the vendor terms.
• resolution is 720P or 1080P, default 1080P.

api_config overrides base_url/api_key per request; skip_error outputs a placeholder instead of aborting the workflow.

Inputs and outputs

• first_frame (required) - JPEG/JPG/PNG/WEBP, up to 10 MB per the tooltip.
• Optional: prompt, resolution, duration, seed, watermark, api_config, skip_error.
• Outputs: video (VIDEO), request_id, urls.

Installing BizyAirPlus

ComfyUI Manager: "BizyAirPlus", or:

cd /path/to/ComfyUI/custom_nodes
git clone https://github.com/siliconflow/BizyAirPlus.git
cd BizyAirPlus
python -m pip install -r requirements.txt

Restart, account at bizyair.ai, API key, BizyAirPlus button ON. Dependencies: bizyair-cloudberry, bizytrd.

Common issues

If you came here from a Reddit thread about downloading HappyHorse weights: stop, this is the safe version. Real failure modes: an oversized first frame (the 10 MB cap) gets rejected, a seed of -1 gives you non-reproducible output on purpose, and the watermark being on by default surprises people who didn't read the tooltip. Then the pack standard - missing button (pip show bizyair-cloudberry), cloud errors in the console, metered pricing.