About LTX 2.5 HDR
LTX 2.5 HDR converts standard dynamic range video into high dynamic range with Lightricks' SDR to HDR IC-LoRA for LTX-2.5, keeping the input's resolution and frame rate.
It returns every frame as a 16-bit EXR in the ACEScg color space, packed in a ZIP archive for compositing and grading, an HLG master in 10-bit HEVC, and a tone mapped preview that plays in any browser. It takes video up to DCI 4K (4096 x 2160), and no prompt is needed.
Three quality modes trade speed for fidelity. Max follows Lightricks' full recipe, with a generated keyframe at every seam and 8 denoising steps. High keeps the keyframes with 4 steps, and fast also converts every other frame. Every mode keeps the source's grain, fine texture and colors while mapping its brightness to HDR. Clips run up to 161 frames, or 129 frames at 4K in max and high.
| Metric | Value |
|---|---|
| Parameter Count | 22 billion |
| Mixture of Experts | No |
Ready to build with LTX 2.5 HDR?
Try LTX 2.5 HDR in the Workbench to prompt it, compare outputs, and iterate on prompts without writing any code. When you're ready to ship, call the same model from our API and build your own apps on top of it.
curl -sSf -X POST https://hub.oxen.ai/api/ai/videos/generate \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $OXEN_API_KEY" \
-d '{
"model": "ltx-2-5-hdr",
"input_video": "https://hub.oxen.ai/api/repos/ox/Oxen-AI-Assets/file/main/videos/waterfall.mp4",
"quality": "fast"
}'Request parameters
Every field LTX 2.5 HDR accepts in the request body. See the API reference for response formats.
https://hub.oxen.ai/api/ai/videos/generate| Field | Type | Required | Default | Description |
|---|---|---|---|---|
input_video | stringuri | Yes | — | SDR video to convert to HDR. |
quality | string | No | "fast" | maxhighfast |