Delivery checks: a target, then the vendors
A delivery check starts from a target a broadcaster or a platform might set and lists the vendors whose own pages print a figure that meets or bears on it. As of 2026-09-25.
Each answer is a list of vendors and their figures, in alphabetical order. A vendor that prints nothing on the point is counted as silent, not as failing.
Each check links to the spec line it draws on and to the references it is measured against.
1Pages on this sheet
- Can AI video tools generate a 21:9 frame — Two tools list 21:9: Alibaba Cloud Wan among six fixed ratios and PixVerse among eight.
- Can clip and export resolution differ — Yes, and two apps say so.
- Can clips be stitched into a 22-minute runtime — M Studio puts no length cap on the cut assembled in its editor.
- Can SDR video be converted to HDR — Two vendors print a conversion step: LTX Studio plans list SDR to HDR video enhancement, and Luma says HDR can be created from SDR images and SDR video.
- Can the frame rate be raised to 60 fps or higher — Three vendors describe it.
- Do unpaid plans carry a watermark — Pika says no: no watermark on every plan, free included.
- Does clip length depend on the resolution — For some vendors, yes.
- Is 16:9 the default frame for AI video — On four sheets it is.
- Is each frame shape generated or cropped — Pexo is the one vendor that says: each of its three shapes is generated fresh, framed for that screen rather than cropped.
- Is the mark invisible, or metadata — Google Veo marks every video with SynthID, an invisible watermark.
- Is the watermark a setting the user controls — On two sheets it is a switch.
- What does YouTube expect from an HDR upload — YouTube's HDR page asks for 720p to 2160p, 10- or 12-bit colour, Rec. 2020 primaries and PQ or HLG, and converts HDR to SDR for viewers without HDR screens.
- What is the longest single AI video generation — Among clip makers, Dreamina's long video mode reaches 180 seconds, Nova Reel chains shots to two minutes, Pexo reaches 120 seconds and Higgsfield one minute.
- What resolution do AI video tools default to — Where a page names a default, it is often below the maximum.
- Which AI video tools generate 4K rather than upscale — Six vendors describe 4K as generated: Google Veo and LTX directly, Higgsfield in every frame, Kling on its 3.0 series, Luma through its API, and DramaSo through a Seedance 2.0 4K row.
- Which AI video tools generate in 1080p — Ten pages name 1080p.
- Which AI video tools offer only one frame shape — Three pages name a single shape.
- Which plans remove the watermark — Eleven vendors say a paid plan removes it.
- Which tools deliver HDR10 video — Runway is the one vendor that names HDR10: Gen-4.5 renders are graded into BT.2020 with measured HDR10 metadata, delivered as HEVC Main 10 with PQ.
- Which tools export half-hour videos — Three production apps print it: Crreo up to 30 minutes on its top plan, HeyGen up to 30 minutes on paid plans, and MagicLight up to 50 minutes.
- Which tools export OpenEXR frames — Three: Luma exports 16-bit EXR frames, LTX names EXR for finishing on its model page, and Runway delivers half-float OpenEXR sequences in linear BT.2020 light, plus ACEScg versions.
- Which tools make a 30-second clip in one generation — Five pages put 30 seconds in a single generation.
- Which tools offer a 10-bit SDR master — Runway lists 10-bit SDR masters in HEVC Main 10, Rec.709, on Gen-4.5 and Aleph 2.0, beside ProRes containers.
- Which tools offer a 2K output — Three vendors print 2K.
- Which tools offer both landscape and portrait — Six vendors print exactly landscape and portrait.
- Which tools output 24 frames per second — Amazon Nova Reel and Google Veo print 24 as their only rate.
- Which tools output 25 or 50 fps for PAL regions — LTX-2.5 is the one generator that lists 25 and 50 fps, alongside 24 and 48, at every resolution.
- Which tools reach 4K by upscaling or export — Five: DomoAI and Runway list 4K upscaling on paid plans, HeyGen upscales any scene to 4K, M Studio exports the finished film in 4K from 1080p clips, and Filmora exports its projects in 4K.
- Which tools stop at 15 seconds per clip — Nine vendors stop at 15 seconds or less, among them Kling, Grok Imagine, PixVerse and MiniMax at 15, Luma at 10, Google Veo at 8 and Pika's 5-second rows.
- Which tools stop at 720p — Four sheets top out at 720p: Amazon Nova Reel at 1280x720, BytePlus Seedance at 480P or 720P, Pika's model rows and Dreamina's named Seedance figure.
2What a generator delivers
For a delivery question like “Delivery checks”, SceneMixer states the following about what it produces:
Dubbing replaces the audio of a finished clip; the picture was generated for a different line, so mouth shapes, pauses and shot length all belong to the original language. Native-language generation gives the video model the line in the target language before it renders the shot, so the performance, the pacing and the cut points are built for that language.
SceneMixer, Native-Language Dialogue vs. Dubbing in AI Video (2026): Why the Cast Should Speak the Line (read 2026-10-13)
The cast is generated once, at the start, as full-body reference sheets. Every segment that features a character is generated against that character's sheet, with face and body crops attached as references — so the face in episode 1 is the face in episode 40.
SceneMixer, AI Short Drama Generator — “How does it keep the same actor across episodes?” (read 2026-10-13)