Start with the scene, not a model's position in a ranking. Animating a portrait, directing several shots and transforming footage are different jobs. This guide groups models by the controls available for the work.
There is no universal choice here. Scene controls matter more than list position: inputs, duration and frame handling differ.
Check the Grok Imagine Video table and other suitable models at a short duration. Compare the selected configuration rather than assuming one option stays cheapest.
No. Test action and composition first. More pixels will not fix an incorrect path, face or object interaction.