Inside Meta Movie Gen: 30B-Parameter Joint Audio-Video Diffusion, Latent Cross-Attention, and Spatial Video Synthesis

By TechIDaily Generative Media Research Group · Published 2026-10-18

While text-to-video models like Runway Gen-3, Luma Dream Machine, and OpenAI Sora showcased impressive visual fidelity, they universally treated audio as a detached post-processing afterthought. Meta Movie Gen presents a unified 30-billion parameter transformer trained with Flow Matching, synthesizing 1080p high-definition video while concurrently generating synchronized Foley sound effects, ambient audio, and instrumental score tracks.