xAI: Grok Imagine Video Edits API

Grok-Imagine-Video/Edits is an advanced video-to-video manipulation engine optimized for high-fidelity semantic editing. Unlike standard generative models that recreate scenes from scratch, the "Edits" variant utilizes Temporal Consistency Gradients (TCG) to isolate specific pixels or objects for modification while preserving the global motion vectors and lighting of the source footage. It features a unique "Real-world Physics Sync" that ensures edited elements (like adding a hat to a running person) obey the original gravitational and inertial forces. In 2026, it is the primary engine for X (formerly Twitter) creators to perform "Instant VFX," allowing for meme generation and professional-grade color grading via conversational AI.