Most AI video generator reviews score the output: how the faces hold up, whether the physics look right, which one nails a dolly zoom. That is useful for picking a tool to open in a browser. It is close to useless if you are going to call one from code, because output quality changes with every checkpoint, while the parameter contract is what your integration has to live with for the next year.
So here is the other review. Six video models, judged on what their APIs refuse to accept, where the refusal is silent, and how much of your client survives swapping one model for another. Everything below comes from a request surface I maintain.
One framing note. I am not affiliated with any of these labs. I reach these models through third-party channels, so channel-level caps can differ from whatever a first-party API exposes, and none of this is official documentation.
The same parameter can have three contracts inside one model
MiniMax H3 takes an aspect_ratio. What that field means depends entirely on which mode you are in.
