HappyHorse 1.0 Image-to-Video (First Frame) Validation Pass criteria: command exits 0 and is generated. Output And Evidence - Save task IDs, polling responses, and final video URLs to . - Keep at least one end-to-end run log for troubleshooting. Prerequisites - Install dependencies (recommended in a venv): - Set in your environment, or add to . Critical model names - — first-frame image-to-video; output aspect ratio follows the input image automatically Capabilities | Capability | Description | Required media | |---|---|---| | First-frame video | Generate a video from one first-frame image, o…