Runway’s new Ruby model turns SDR video into 16-bit HDR

Runway just launched Ruby, a new AI model designed to convert standard dynamic range (SDR) video into 16-bit HDR footage.

The tool outputs in professional editing standards including Apple ProRes and EXR image sequences. It works on both user-uploaded clips and videos previously generated inside Runway, supporting clips up to 30 seconds long. Ruby is now live on Runway's platform.

Bridging AI video with color grading pipelines

Up to now, dynamic range has been a silent bottleneck for creators attempting to fit AI-generated video into professional workflows. Most generated footage comes out as compressed, 8-bit SDR content that easily banding or breaks apart when pushed around in tools like DaVinci Resolve.

Ruby changes that math. Instead of reshooting footage or abandoning low-dynamic clips, editors can now upscale bit depth directly within Runway.

Why it matters

Runway clearly understands that if generative video wants to conquer Hollywood and high-end ad agencies, it has to speak the language of professional post-production. Supporting 16-bit EXR sequences is a direct signal to visual effects and color departments.

We think this is a smart, utilitarian play. While competitors keep racing to make slightly longer or prettier baseline video, Runway is building the unsexy plumbing that helps AI footage survive actual production pipelines. The 30-second ceiling is still a limit, but for individual VFX plates and short commercial cuts, it is immediately useful.