A 10-second Grok Imagine 1.5 clip at 720p runs $1.41 (opens in new tab)

xAI's Grok Imagine 1.5 lands as an image-to-video model with a deliberate trade-off: tighter fidelity to your source frame, new audio prompting, and a hard requirement that you bring a still image to start. Here's what actually changed from the original, and the one constraint that reshapes how you build with it. 1.5 vs the original: fidelity, audio, and the image-only constraint Grok Imagine 1.5 is xAI's image-to-video model, announced on June 3, 2026 and exposed through the API as grok-imag...