Luma AI Review — The $4B Video-to-World-Model Company Behind Dream Machine, Ray3, and Luma Agents

Amit Jain left Apple's Vision Pro team in 2021 to build AI that understands physical reality. By 2026, Luma AI had raised $1.06B at a $4B valuation, launched Ray3 — the first reasoning video model — and shipped Luma Agents on a Unified Intelligence architecture. We review the full product stack, the community MCP ecosystem, the Hollywood partnerships, and what separates Luma from the crowded video generation field.