HappyHorse 1.0
Alibaba's breakthrough AI video model with native audio-video sync generated in a single pass.
Generate videoGet API keyWhat is HappyHorse 1.0?
HappyHorse 1.0 is Alibaba's flagship AI video generation model, released in April 2026. It supports text-to-video, image-to-video, reference-to-video, and video-to-video modes, with synchronized audio generated in a single forward pass.
Use HappyHorse 1.0 privately on Venice
On Venice, HappyHorse 1.0 runs under an anonymized privacy tier — your prompts are never stored, profiled, or reused. This means you can generate high-fidelity, audio-rich video content without surveillance, leveraging Alibaba’s breakthrough architecture while retaining full sovereignty over your creative inputs.
What can HappyHorse 1.0 do?
- •World’s first native single-pass audio-video generation model — audio is perfectly synchronized by design, eliminating post-alignment steps.
- •Strong third-party showing — top-3 for text-to-video (without audio) on Artificial Analysis's Video Arena as of August 2026, after topping both video charts at its April debut.
- •Supports multilingual lip-sync across Chinese, English, Japanese, Korean, German, French, and Cantonese.
- •Efficient inference — runs at 1080p on a single H100 GPU, with 8-step denoising via DMD-2 distillation.
- •Multiple input modes including reference-to-video for consistent character generation and video-to-video for editing.
- •Closed and proprietary — no open weights or self-hosting options.
- •Limited to clips between 3 and 15 seconds; not designed for long-form content.
- •Audio generation is strong but not customizable — limited control over music or SFX layers.
- •No end-to-end encryption or TEE protection on Venice — privacy is anonymized but not fully encrypted.
Sample outputs
Generated on Venice with our standard prompt suite — the same prompts we run through every model of this type, so you can judge it like-for-like.
Slow aerial drone shot gliding over a misty mountain valley at golden hour, sunlight piercing clouds onto a winding river, ancient pine forests on either side, ultra-smooth motion, professional color grading, atmospheric haze, 4K
Calm ocean waves rolling onto a black-sand beach at sunrise, golden light on wet sand, foam dissolving into the shore, a single silhouetted figure at the waterline, smooth continuous forward push, serene cinematic atmosphere
A slow tracking shot through a rain-soaked Tokyo street at night, neon reflecting in puddles, steam rising from a food cart, a person with a translucent umbrella, shallow depth of field, teal-and-orange grade, smooth steady camera
HappyHorse 1.0 model variants
HappyHorse 1.0 runs on Venice as 4 variants of the same underlying model — pick by what you're starting from: a written prompt, a still image, reference images, or an existing clip. Each variant is its own model id on the API; the generation quality is the same across the family.
| Variant | What it is | Clip lengths | Resolutions | Aspect ratios | Audio | Model ID |
|---|---|---|---|---|---|---|
| Text to Videoflagship | Generate a clip from a written prompt | 3s – 15s | 1080p, 720p | 16:9, 9:16, 1:1 | happyhorse-1-0-text-to-video | |
| Image to Video | Animate a still image into motion | 3s – 15s | 1080p, 720p | — | happyhorse-1-0-image-to-video | |
| Reference to Video | Keep a subject consistent using reference images | 3s – 15s | 1080p, 720p | 16:9, 9:16, 1:1, 4:3, 3:4 | happyhorse-1-0-reference-to-video | |
| Video to Video | Edit or restyle an existing clip | Auto | 1080p, 720p | — | happyhorse-1-0-video-to-video |
Capability data comes straight from the Venice model API and refreshes with every catalog ingest. The specs and pricing on this page are captured from the flagship variant; pass the model id of the variant you want to the API.
HappyHorse 1.0 Text to Video
Generate a clip from a written prompt. Supports clips of 3s – 15s, 1080p, 720p output, 16:9, 9:16, 1:1 aspect ratios, with native audio.
happyhorse-1-0-text-to-videoHappyHorse 1.0 Image to Video
Animate a still image into motion. Supports clips of 3s – 15s, 1080p, 720p output, with native audio.
happyhorse-1-0-image-to-videoHappyHorse 1.0 Reference to Video
Keep a subject consistent using reference images. Supports clips of 3s – 15s, 1080p, 720p output, 16:9, 9:16, 1:1, 4:3, 3:4 aspect ratios, with native audio.
happyhorse-1-0-reference-to-videoHappyHorse 1.0 Video to Video
Edit or restyle an existing clip. Supports clips of Auto, 1080p, 720p output, with native audio.
happyhorse-1-0-video-to-videoHow to use HappyHorse 1.0 via API
Venice exposes this model through the REST API. Queue a generation with happyhorse-1-0-text-to-video.
curl https://api.venice.ai/api/v1/video/queue \
-H "Authorization: Bearer $VENICE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "happyhorse-1-0-text-to-video",
"prompt": "Aerial drone shot over a misty mountain valley at golden hour"
}'
# Use the returned queue_id with https://api.venice.ai/api/v1/video/retrieve.
# Call /video/complete after downloading if needed.Specifications
Pricing
Pay per clip on Venice — price scales with resolution and duration (3s–15s), from $0.46.
New Venice accounts include a free daily allowance and 500 welcome credits — no credit card required.
HappyHorse 1.0 vs alternatives
| Model | Max resolution | Strongest at | Open weights | Price (Venice) |
|---|---|---|---|---|
| HappyHorse 1.0 | 1080p | Native audio-video sync, multilingual lip-sync | No | from $0.46 |
| Wan 2.7 | 1080p | Longer clips, open weights | Yes | from $0.55 |
| Kling O3 Pro | 1080p | Cinematic realism, camera control | No | from $0.46 |
| Vidu Q3 | 1080p | Long-context storytelling | No | from $0.27 |
Pioneer in joint audio-video generation; leads in lip-sync and cinematic quality.
What is HappyHorse 1.0 good for?
- •Short-form marketing videos with multilingual voiceover and lip-sync.
- •Animating still images into cinematic clips with sound.
- •Creating consistent-character video sequences using reference images.
- •Rapid prototyping of ad concepts with integrated audio and visuals.
- •Social media content where audio-visual cohesion is critical.
Prompting tips
- •Use clear motion cues like 'zoom in', 'pan left', or 'slow motion' to guide camera behavior.
- •Specify language for dialogue (e.g., 'character speaks Mandarin') to activate accurate lip-sync.
- •For image-to-video, describe desired motion explicitly: 'the character turns head slowly, wind blows hair'.
- •Use reference images with consistent character poses to improve identity retention in reference-to-video mode.
Version history
Initial release, debuted anonymously on Artificial Analysis.
CurrentImproved lip-sync, standard 1080p, multilingual support.
Frequently asked questions
HappyHorse 1.0 is Alibaba's AI video generation model released in April 2026. It supports text-to-video, image-to-video, reference-to-video, and video-to-video modes with native audio generated in the same pass as visuals.
On Venice, pricing starts at $0.46 per clip for 720p at 3 seconds, scaling with resolution and duration. A 1080p 3-second clip costs $0.79.
No. HappyHorse 1.0 is a proprietary model developed by Alibaba. It is not open source, and there are no plans to release the weights. Access is via API or platforms like Venice.
Yes. It is the first model to generate synchronized audio and video in a single pass, supporting dialogue, ambient sound, and lip-sync across seven languages.
HappyHorse 1.0 supports 720p and 1080p output at aspect ratios including 16:9, 9:16, and 1:1.
No. HappyHorse 1.0 is a generative video model and does not support tool use, function calling, or external API integration.
Yes. The variant 'happyhorse-1-0-image-to-video' animates still images into motion using a text prompt, supporting 3–15 second clips at 720p or 1080p with audio.
HappyHorse 1.0 excels in audio-visual sync, lip-sync, and cinematic polish, while Wan 2.7 offers open weights and longer clip support but lacks native audio. Choose HappyHorse for production-ready short videos with sound, Wan for customization and transparency.
Yes, via the 'video-to-video' mode (model ID: happyhorse-1-0-video-to-video), which allows restyling or editing of an existing clip while preserving timing and structure.
Related models
Run HappyHorse 1.0 privately.
No prompt logging. No data used for training. Free to start — no credit card.
