CogVideoX supports 720 x 480 and refuses the rest

The model card states an inference resolution of 720 x 480 with no support for other resolutions. It is the only row in this column where the page does not merely omit alternatives but explicitly rules them out, and the figure is the smallest here. As of 2026-09-22.

Inclusion rule. Fields printed in the model card's own specification table. Resolutions reachable through community modifications are outside what this register cites. Order. As the card orders its table.

1An explicit refusal reads differently from a silence

Most gaps in this register are omissions: the page did not address the question. Here the page addresses it and says no. That distinction is worth a row of its own, because a plan can proceed against an omission by asking the vendor and cannot proceed against a refusal at all.

It also fixes the register's smallest output. 720 by 480 is below every other floor published here, including the 540p rung that sits at the bottom of the cheapest ladder, and there is no step above it to buy.

2Against the one surface that publishes a pixel 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 clears none of those three floors on the vertical or square routes and falls short of the horizontal one on both axes.

That is the only place in the register where a published output size fails a published input requirement outright. Every other row clears the floors at its cheapest rung, which is why the pixel minimums are usually the least interesting column on these sheets.

3Fixed size, fixed rate, fixed length

All three of this row's figures are single values. Nothing about the output can be traded against anything else, and the register carries it as a fixed format in every column it appears in.

That is what an open-weight research release looks like in a commercial register. The card describes what the released weights do rather than what a product offers, and the absence of ladders is the clearest signal of which of those two things is being read.

4Where this cell sits in the column

Inclusion rule. Every generator in the register, carrying the resolution figure its own page prints, whether that is a ladder, a range or a single pair of numbers. Order. Alphabetical by generator name.

• Inference resolution
  720 x 480, no support for other resolutionsfrom the model card tableCogVideoX-5B model card / recorded 2026-09-22
• Frame rate
  8 frames per secondfrom the model card tableCogVideoX-5B model card / recorded 2026-09-22

5Sources

Read from the CogVideoX-5B model card, checked 2026-09-22. The column itself is described on resolution, and the rule that keeps surfaces and generators apart is on method. Next along this column: Google Veo, Grok Imagine.