Short Video Generation With Directed Motion
Happy Horse is easier to direct when you describe one clear scene: subject, motion, camera, lighting, style, and final beat.
Text-to-Video Concepts
Turn a written shot brief into a short clip. Use it for cinematic tests, social video hooks, product moments, mood boards, and quick visual storyboards before committing to a full edit.
Reference-to-Video Control
Upload one to nine reference images when the result needs to preserve a character, outfit, product, color palette, or visual style. Then describe how the scene should move.
Compare Model Fit Before Production
Happy Horse is often discussed against Seedance, Kling, and Veo for realism, prompt following, and multi-shot direction. Use short tests to find the model that fits your specific scene.
Controls Available in This Version
The first Nanabanana2 release focuses on three creator workflows: prompt-only generation, single first-frame image-to-video, and multi-reference generation.
720p and 1080p Output
Choose 720p when you want cheaper iteration, or 1080p when the clip needs more detail. Billing is calculated by resolution and duration before generation starts.
3 to 15 Second Clips
Keep each generation focused on one moment. A clear 5 to 8 second shot usually performs better than asking for a full story with too many events.
Five Aspect Ratios
Text-to-video and reference-to-video support landscape, vertical, square, and classic frame formats: 16:9, 9:16, 1:1, 4:3, and 3:4. Image-to-video follows the uploaded first frame instead of exposing aspect controls.
Seed Hidden by Default
Seed is not required for the first public version. The interface stays focused on prompt, first-frame or reference uploads, duration, resolution, and aspect ratio where the endpoint supports it.
Where Happy Horse Fits Best
Use happy horse AI when a compact clip needs specific visual direction, but keep the limitations visible before spending credits.
Creator Shorts and Social Hooks
Draft vertical or landscape clips for Reels, TikTok, Shorts, campaign hooks, and concept posts. Use one subject and one camera idea per generation.
Character and Product Motion Tests
Use references when the viewer needs to recognize a face, outfit, product, prop, or art style. The prompt should explain the movement instead of repeating what is already visible.
Model Evaluation Before Scaling
Run short 720p tests before spending on 1080p. Avoid prompts that require exact typography, long continuity, crowded action, or strict physics across many beats.
Prompt for One Shot at a Time
Step 1 Start With the Output Format
Pick 16:9 for landscape, 9:16 for vertical social clips, or 1:1 when the subject should stay centered. Format changes the way camera motion and composition read.
Step 2 Describe Motion, Not Only Appearance
Include the action, camera move, background movement, lighting change, and final frame. A prompt that only describes a still image often produces weak motion.
Step 3 Use References for Identity and Style
Upload references when you need a character, product, outfit, or look to remain recognizable. Put movement and scene direction in the prompt instead of overloading the reference images.

Frequently asked questions
What is Happy Horse 1.0?
Happy Horse 1.0, also styled as HappyHorse-1.0, is an AI video generation model associated with Alibaba ATH. This page gives you a web interface for short happy horse AI video generation.
Which Happy Horse modes are available here?
The first version supports text-to-video, image-to-video with exactly one first-frame image, and reference-to-video with 1 to 9 reference images. Video-edit is not included in this release because it is a separate workflow and will be added only after the integration is ready.
Is seed required?
No. Seed is not required for the first user-facing version, so it is hidden from the interface. You only need a prompt, generation mode, image input when required, duration, resolution, and aspect ratio where the endpoint supports it.
How many credits does Happy Horse use?
720p costs 28 credits per second, and 1080p costs 48 credits per second. For example, a 5 second 1080p clip costs 240 credits before generation starts.
How many reference images can I upload?
Image-to-video uses exactly one first-frame image. Reference-to-video supports 1 to 9 images. Use clear JPG, PNG, or WebP references, keep each file under 10 MB, and use the prompt to explain the motion you want.
Is Happy Horse open source?
Do not treat Happy Horse as an open-source model. Early community posts discussed open-source rumors, but current public API listings and provider pages present it as a proprietary video model.