LTX Studio and Luma, spec by spec

LTX Studio and Luma both print figures on 4 spec lines, resolution, HDR, frame shape and length; their readings differ on frame shape and length. From 6 source pages, read 2026-09-25; no maker pays to be listed.

Fig. 1 Filled: the vendor prints a figure. Empty: no figure, or not read.

LTX Studio and Luma, reading by spec line, checked 2026-09-25.
Spec line	LTX Studio	Luma
Maximum resolution	4K, generated	4K, generated
Frame rate	Several rates	No figure
HDR and bit depth	HDR output	HDR output
Aspect ratios	Landscape and portrait	None listed by name
Longest single output	16 to 30 s	15 s or less
Watermark on output	Removed on paid plans	No figure

Inclusion rule. The six spec lines every deliverable page carries. Order. Sheet order of the spec lines.

1Where the two sheets part

Both print 4K and both print HDR with EXR. They part on frame and time: LTX-2.5 offers 16:9 and 9:16 at every resolution and up to 20 seconds per API request, while Luma's API shows an aspect parameter without a list and Ray3.2 runs 5 or 10 seconds.

Maximum resolution

LTX Studio: Up to 4K on LTX-2.5, Fast and Pro, in portrait and landscape (3840x2160 landscape). Luma: API resolution 540p, 720p, 1080 or 4k.

HDR and bit depth

LTX Studio: Native HDR footage, with EXR named for finishing. Luma: Native 16-bit HDR generation, exported as 16-bit EXR frames.

Aspect ratios

LTX Studio: 16:9 landscape or 9:16 portrait at each resolution. Luma: An aspect_ratio parameter, shown with 16:9 in the examples; the allowed values are not listed.

Longest single output

LTX Studio: Up to 20 seconds per API request. Luma: Ray3.2 text and image to video in 5-second or 10-second generations.

2Figures on file

LTX-2.5
Up to 4K on LTX-2.5, Fast and Pro, in portrait and landscape (3840x2160 landscape)resolutionsLTX API docs, LTX-2.5 supported models / recorded 2026-09-25
Ray 2 API
API resolution 540p, 720p, 1080 or 4kresolution parameterLuma API docs, video generation / recorded 2026-09-25
LTX-2.5
Native HDR footage, with EXR named for finishingnative HDRLTX, LTX-2.5 model page / recorded 2026-09-25
Ray3
Native 16-bit HDR generation, exported as 16-bit EXR framesHDR and EXR exportLuma AI, Ray3 page / recorded 2026-09-25
LTX-2.5
16:9 landscape or 9:16 portrait at each resolutionresolutions tableLTX API docs, LTX-2.5 supported models / recorded 2026-09-25
API examples
An aspect_ratio parameter, shown with 16:9 in the examples; the allowed values are not listedwith loop, aspect ratioLuma API docs, video generation / recorded 2026-09-25
API capabilities
Up to 20 seconds per API requesttext to videoLTX API docs, welcome / recorded 2026-09-25
Ray3.2 rows
Ray3.2 text and image to video in 5-second or 10-second generationsdurations onlyLuma AI, pricing / recorded 2026-09-25

3One more delivery sheet beside LTX Studio and Luma

SceneMixer's printed figure on the checks where LTX Studio and Luma differ, read 2026-09-25.
Check	SceneMixer	Source
Aspect ratios	16:9 landscape by default, or 9:16 portrait, chosen once per project	SceneMixer, what comes out (video specs guide)
Longest single output	Segments of 15 or 30 seconds, chosen per episode; the tier table's longest clip is 30 seconds	SceneMixer, what comes out (video specs guide)

Inclusion rule. Checks on which the two tools differ and SceneMixer prints a figure; checks it prints nothing on are not shown. Order. The order checks take on every tool page.