Runway Ruby: The Revolution of SDR-to-HDR Conversion for Professional Workflows
Discover everything about Runway Ruby: This new AI model brings true 16-bit HDR mastering and SDR-to-HDR conversion to post-production.
The generative AI video scene is evolving at a breakneck pace, yet one of the biggest hurdles for professional adoption has been final image quality. While modern video platforms can generate increasingly realistic scenes, export options have mostly remained limited to Standard Dynamic Range (SDR) and highly compressed MP4 files. Runway recognized this gap and released a groundbreaking new model named Runway Ruby on August 21, 2026.
Unlike traditional generators, Ruby does not create new visual content from scratch. Instead, it acts as an intelligent mastering tool for post-production. Ruby converts conventional SDR video clips into true High Dynamic Range (HDR), delivering the color depth and contrast range demanded by broadcasters, cinemas, and high-end streaming services.
For ambitious content creators and professional film studios, this represents a massive leap forward. Those looking to optimize their creative pipeline can generate base scenes using advanced generators like the AIQORA /video generator and then elevate the clips to their absolute visual maximum using tools like Runway Ruby.
Key Takeaways
* True 16-Bit HDR: Accurately converts SDR videos into the BT.2020 color space using PQ or HLG curves.
* Pro-Oriented Formats: Exports results as uncompressed 16-bit EXR sequences for VFX studios, as well as 10-bit and 12-bit ProRes or HEVC files.
* Maximum Clip Length: Supports video sequences with a duration of up to 30 seconds.
* Universal Compatibility: Works seamlessly with pre-generated clips (e.g., from Gen-4.5, Seedance 2.5, or MiniMax H3) as well as standard camera uploads.
* Flexible Pricing: Integrated into Runway's Max and Enterprise subscriptions; API usage starts at $0.20 per rendered second.
What is Runway Ruby and how does it work?
Runway Ruby is not a traditional text-to-video generator. Its core task is the so-called up-grading of Standard Dynamic Range (SDR) footage into High Dynamic Range (HDR) formats.
When conventional videos are shot or generated in SDR, fine details in very bright areas (like the sky) or deep shadows are lost. Ruby utilizes neural networks to intelligently reconstruct these over- or underexposed image areas. The tool calculates what the scene would have looked like with a real HDR camera and expands the color palette to the modern BT.2020 color space.
Seamless Integration into Professional Editing Software
The fact that Runway is targeting the film industry directly is evident in the export formats. Instead of serving creators with highly compressed formats, Ruby outputs true 16-bit EXR sequences. These image sequences are the industry standard in the visual effects (VFX) industry and professional compositing. For those who prefer a faster workflow, 10-bit or 12-bit ProRes and HEVC options are also available.
The Difference: Rapid Generation vs. High-End Mastering
To understand the role of Runway Ruby in the current ecosystem (as of August 2026), it is worth comparing it to other models. While fast social media generators, for example, are designed to provide finished MP4 files for smartphones within seconds, Ruby operates at the opposite end of the production chain:
| Feature | Fast Video AI (Social Media) | Runway Ruby (Mastering Model) |
|---|---|---|
| Primary Purpose | Fast text generation & prototyping | Color grading, HDR reconstruction & mastering |
| Target Format | MP4 (mostly 8-bit SDR, highly compressed) | 16-bit EXR sequences, ProRes, HEVC (HDR) |
| Maximum Length | Often 10 to 15 seconds | Up to 30 seconds |
| Use Case | At the beginning of the creative process | At the end (post-production & finishing) |
With this approach, Runway clearly positions itself as a platform for professional filmmakers and agencies who want to make AI content ready for the cinema or HDR televisions.
Connecting a Pro Workflow with AIQORA
The release of Runway Ruby demonstrates that the modern AI workflow is modular. Creators no longer have to rely on a single tool.
A highly efficient production pipeline, for example, looks like this:
- Conception & Visual Assets: Create photorealistic reference images with our AIQORA /images generator.
- Video Generation: Use these assets to generate cinematic raw scenes with our fast /video generator.
- Sound Design: Score the project with atmospheric music from the AIQORA /music-generator.
- HDR Finishing: Finally, import the completed scenes into Runway Ruby to transform them into a brilliant, color-rich 16-bit HDR version for the big screen.
FAQ
What is Runway Ruby?
Runway Ruby is a specialized AI model from Runway that converts conventional SDR (Standard Dynamic Range) videos into true, professional HDR (High Dynamic Range) with up to 16-bit color depth.
Can you generate videos from text prompts with Runway Ruby?
No. Runway Ruby is not a text-to-video generator. It always requires an existing video (either uploaded or previously generated with another AI) as input in order to upgrade its color and dynamic range.
Which export formats are available in Ruby?
Ruby supports exporting as uncompressed 16-bit EXR sequences as well as high-quality 10-bit and 12-bit ProRes or HEVC files in the BT.2020 color space (PQ or HLG).
How much does it cost to use the Ruby model?
The model is directly included in the web interface for subscribers of the "Max" and "Enterprise" plans. Developers who wish to access the tool via the API pay rates starting at $0.20 per processed video second.