Prompt Writing Guide
Get the best results from Happy Horse with effective prompts.
Prompt Structure
A good Happy Horse prompt follows this structure:
[Subject] + [Action] + [Setting/Background] + [Visual Style] + [Camera/Lighting]Subject
A young woman, A robot, A cat
Be specific about appearance
Action
walking slowly, speaking, dancing
Keep movements simple
Setting
in a neon-lit alley, on a beach at sunset
Sets the scene context
Visual Style
cinematic, photorealistic, anime
Defines the aesthetic
Camera
close-up, wide shot, dolly forward
Controls framing and movement
Lighting
golden hour, dramatic side-lighting
Sets mood and atmosphere
Example Prompts
Portrait (Best Results)
A young woman with auburn hair speaking directly to the camera in a warmly lit coffee shop, soft bokeh background, cinematic 35mm film look
Tip: Single-character portraits are Happy Horse's strongest capability. Include lighting, setting, and camera details.
Landscape / Scene
Aerial drone shot slowly pushing forward over misty mountain peaks at golden hour, volumetric fog rolling through valleys, photorealistic
Tip: Specify camera movement (aerial, dolly, pan) and atmospheric conditions for best results.
Action
A martial artist performing a spinning kick in slow motion, dramatic side lighting, dust particles in the air, dark studio background
Tip: Keep actions simple and focused on a single subject. Slow motion helps maintain quality.
Dialogue / Lip-Sync
A news anchor sitting at a desk, speaking clearly: "Today we are covering the latest developments in artificial intelligence." Professional studio lighting.
Tip: Set language="en" parameter. Include the spoken text in quotes within the prompt.
Abstract / Artistic
Flowing liquid mercury forming organic shapes against a deep black background, iridescent reflections, macro lens, smooth slow motion
Tip: Abstract prompts work well. Focus on material, lighting, and movement descriptions.
What Works Best
Do
- Single-character portraits and close-ups
- Clear, descriptive language
- Specify camera movement explicitly
- Include lighting and atmosphere details
- Keep clips to 5 seconds for best quality
- Use 256p for prompt iteration
Avoid
- Multiple characters interacting
- Complex camera movements (crash zoom, whip pan)
- Very long prompts with contradicting instructions
- Duration beyond 8 seconds
- Tiny text or detailed UI elements in the scene
- Expecting photorealistic hands in close-up
Lip-Sync Tips
Happy Horse supports 7 languages for lip-sync. For best results:
- • Set the
languageparameter to match the spoken language - • Include the exact spoken text in quotes within the prompt
- • Keep dialogue short (1-2 sentences for a 5-second clip)
- • Single speaker only — multi-speaker dialogue quality is limited
- • English and Mandarin have the best WER scores; other languages may have slightly lower accuracy
| Language | Code | Quality |
|---|---|---|
| English | en | Excellent |
| Mandarin | zh | Excellent |
| Cantonese | yue | Very Good |
| Japanese | ja | Very Good |
| Korean | ko | Very Good |
| German | de | Good |
| French | fr | Good |