This is what the site actually charges — the same formula behind the credit prompt shown before you generate.
Video charging is based on the model's duration and resolution tiers. Unsupported durations are rounded to a valid tier; the exact amount is shown before generation.
Taken from our own integration notes, not restated from the vendor's docs.
High quality; multimodal → video / extend / edit (first-last frame)
100 credits at 720p. 1080p and longer durations scale by the multipliers in the table, and the exact cost is shown again before you generate.
No. One Tovaki subscription covers every model in the catalog; you spend credits, not per-model subscriptions.
Yes. Every shot on the canvas can be re-run on another model, and what you already generated stays.