The two ends of the resolution column
One model card states 720 by 480 and adds that other resolutions are unsupported. One price page states 720p, 1080p and 4K, each a priced step. They are the floor and the ceiling of this column, and the shape of the statement differs as much as the numbers. As of 2026-09-22.
| What the pages state | CogVideoX | Kling AI |
|---|---|---|
| Published size | 720 x 480 | 720p, 1080p and 4K |
| Form of the statement | A refusal of anything else | A ladder of priced steps |
| Against a 540x960 vertical floor | Fails it | Clears it at every rung |
Inclusion rule. The resolution figures each page states. The floor comparison uses a minimum a platform publishes on its own help page and nothing else. Order. Size first, then the form of the statement, then the one check that separates them.
1One of these fails a published floor
The platform in this register that states minimum dimensions accepts vertical ads from 540x960, horizontal from 960x540 and square from 640x640. A 720 by 480 file misses the vertical and square floors and falls short of the horizontal one on both axes.
Everywhere else on these sheets the pixel minimums are the least interesting column, cleared by the cheapest available rung. This is the single row where they bite, and the card rules out buying a way past them.
2A refusal and a ladder are different kinds of cell
A ladder invites a decision: draft cheap, deliver dear, pay the difference once. A refusal removes the decision. Neither page is being unhelpful; they are written for different readers, one running weights locally and one buying requests.
The register keeps the wording of both. A cell reading not supported and a cell reading three steps carry different consequences for a plan, and flattening them into a single size column would hide which of the two a buyer is looking at.
3Neither page answers the other columns
The refusal row publishes a length, a frame rate and a frame count, and never a shape. The ladder row publishes only the ladder: no length, no shape, nothing about the file. Between them they leave a media plan short in both directions.
That is the useful thing about putting these two together. The register's smallest output and its highest rung are both on pages that cannot be planned against without asking the vendor a question neither page anticipated.
4The rest of the column behind these two
| Generator | Resolution |
|---|---|
| Amazon Nova Reel | 1280x720 |
| CogVideoX | 720 x 480 only |
| Google Veo | 720p / 1080p / 4k |
| Grok Imagine | 480p / 720p / 1080p |
| Hedra | 540p / 720p / 1080p |
| HeyGen | 128 to 4,096 px each side |
| Kling AI | 720p / 1080p / 4K |
| LTX-Video | 1216x704 |
| MiniMax | 480P / 768P / 2K |
| Pika | 480p / 720p / 1080p |
| PixVerse | 360p / 540p / 720p / 1080p |
| Runway | Pixel pairs, not tiers |
| SceneMixer | 480P / 720P / 1080P |
| Vidu | 540p / 720p / 1080p |
| Wan 3.0 | 480P / 720P / 1080P |
Inclusion rule. Every generator this register carries, on the one column this pair disagrees about. Rows that state nothing keep their place and are marked hollow. Order. Alphabetical by generator name.
Why these two. This is the only place in the register where a published output size fails a published input requirement outright, and the page at the other end publishes a rung nothing else here carries. The column has no wider pair.
- Inference resolution720 x 480, no support for other resolutionsfrom the model card table
- Resolutions720p, 1080p and 4Kpriced per step
5Sources
Read from the CogVideoX-5B model card and the Kling AI developer price page, checked 2026-09-22 and 2026-09-12 respectively. The column is described on resolution, and each entry has its own cell page at CogVideoX and Kling AI, and the rule that keeps surfaces and generators apart is on method. Nearby pairs: HeyGen and Veo, Hedra and HeyGen on shape.