curl --location --request POST 'https://modelslab.com/api/v6/video/text2video' \
curl  --header 'Content-Type: application/json' \
{
    "key":"",
    "model_id":"epicrealismnaturalsi-vid",
    "prompt":"An astronaut riding a horse",
    "negative_prompt":"low quality",
    "height":320,
    "width":576,
    "num_frames":16,
    "num_inference_steps":20,
    "guidance_scale":7,
    "upscale_height":640,
    "upscale_width":1024,
    "upscale_strength":0.6,
    "upscale_guidance_scale":12,
    "upscale_num_inference_steps":20,
    "output_type":"gif",
    "webhook":null,
    "track_id":null
}