Key Points
- Luma AI launches Ray3 Modify, a model that edits footage using character reference images.
- The model preserves original motion, timing, eye line and emotional delivery.
- Start‑and‑end frame inputs let creators generate precise transitional video.
- Available via the Dream Machine platform for immediate use.
- Release follows a $900 million funding round led by Humain and existing investors.
- Luma plans a 2 GW AI cluster in Saudi Arabia with Humain to support the technology.
Introducing Ray3 Modify
Luma AI, backed by a16z and other investors, released a new generative video model named Ray3 Modify. The technology enables users to modify existing footage by supplying character reference images that retain the performance of the original clip. In addition, creators can provide a start frame and an end frame to guide the model in generating transitional footage, giving precise control over how a scene evolves.
Preserving Human Performance While Enabling Creative Changes
The core advantage of Ray3 Modify is its ability to keep the actor’s original motion, timing, eye line and emotional delivery intact while applying visual changes. By using reference images, the model can transform an actor’s appearance—altering costumes, likeness or identity—without losing the subtle nuances of the performance. This capability addresses a common challenge for creative studios that need to edit or enhance footage without re‑shooting.
Control and Flexibility for Creators
According to Luma’s co‑founder and CEO Amit Jain, generative video models are expressive but often hard to control. Ray3 Modify blends real‑world footage with AI expressivity, giving creators full control. Users can capture performances with a camera and then instantly modify location, attire or even reshoot the scene using AI, preserving continuity across shots. The start‑and‑end frame feature is especially useful for directing transitions, controlling character movements, or ensuring seamless continuity between scenes.
Availability and Strategic Context
The model is accessible to users through Luma’s Dream Machine platform, which hosts the company’s suite of AI tools. Ray3 Modify follows Luma’s earlier release of video‑modification capabilities in June 2025. Its launch comes on the heels of a fresh $900 million funding round led by Saudi Arabia’s Public Investment Fund‑owned AI company Humain, with participation from existing investors such as a16z, Amplify Partners and Matrix Partners. Luma also announced plans to build a 2 GW AI cluster in Saudi Arabia together with Humain, underscoring its commitment to scaling AI infrastructure for creative applications.
Source: techcrunch.com