Grok Imagine Video 1.5 on AI Gateway. Image-to-video generation with synced audio in one pass. 𝚊𝚠𝚊𝚒𝚝 𝚐𝚎𝚗𝚎𝚛𝚊𝚝𝚎𝚅𝚒𝚍𝚎𝚘({ 𝚖𝚘𝚍𝚎𝚕: '𝚡𝚊𝚒/𝚐𝚛𝚘𝚔-𝚒𝚖𝚊𝚐𝚒𝚗𝚎-𝚟𝚒𝚍𝚎𝚘-𝟷.𝟻-𝚙𝚛𝚎𝚟𝚒𝚎𝚠', 𝚙𝚛𝚘𝚖𝚙𝚝: '𝚊 𝚛𝚊𝚋𝚋𝚒𝚝 𝚜𝚙𝚛𝚒𝚗𝚝𝚒𝚗𝚐 𝚝𝚑𝚛𝚘𝚞𝚐𝚑 𝚗𝚢𝚌' });