HappyHorse-1.1 API

Option / channel	Official	Cloud vendor
1080p	$0.29	$0.203
720p	$0.225	$0.1575

Option / channel	Official	Cloud vendor
1080p	$0.29	$0.203
720p	$0.225	$0.1575

Option / channel	Official	Cloud vendor
1080p	$0.29	$0.203
720p	$0.225	$0.1575

Input

prompt *

A female sprinter crouches in the starting blocks in the ready position, shown in an extreme close-up of her face. She slowly raises her head, her gaze locked firmly on the finish line, her eyes tense and focused with laser-like intensity. Cinematic stadium spotlights fall across her skin, rendered in hyper-realistic detail, with fine pores and subtle skin texture clearly visible. A few strands of hair are gently stirred by the breeze.

Shot 2: Smooth Pullback  
The camera pulls back smoothly and seamlessly, transitioning steadily into a tight medium shot. It pans downward along her arm, revealing both hands gripping the rough red rubber track, her fingertips lightly dusted with white chalk. The image naturally captures the rise and fall of her breathing and the taut, coiled state of her muscles, with no visual distortion or deformation.

Shot 3: Dynamic Low-Angle Wide Shot  
A precise, clean cut shifts to a highly dramatic low-angle wide shot: she is fully crouched over the starting blocks, poised and ready to sprint forward at any moment. The blurred stadium lights in the background form beautiful, soft halo bokeh. Throughout, the character’s appearance remains consistent, her body structure coherent, and the editing rhythm professional and polished.

Text description of the video to generate. Supports any language. Maximum 5,000 non-Chinese characters or 2,500 Chinese1272/5000

resolution

Output video resolution.

aspect_ratio

Output video aspect ratio.

duration

Output video duration in seconds.