Luma AI is a generative AI company building multimodal creative tools, best known for AI video generation and 3D world models. The company was founded in September 2021 by Amit Jain, Alex Yu, and Alberto Taiuti, with Jain bringing a background in 3D computer vision, cameras, and machine learning from Apple.
Luma AI closed a $900 million Series C in November 2025, led by Saudi Arabia's HUMAIN investment vehicle specifically to fund large-scale world-model training, at a valuation near $4 billion and bringing total funding to roughly $1.1 billion across six rounds. The company's Ray3 model powers its cinematic AI video generation capability within its broader creative workspace.