Logo + merchandise set
Taking the "Logo on Merch · Brand Extension" template as an example: about 12 credits on Nano Banana 2.
The credit prompt before each generation is authoritative; it changes with model, resolution and duration.
Brand name · Business or industry.
A single generation usually lands between one and a few minutes depending on model and resolution; several can run at once, with the limit set by your plan.
Yes. Any shot can be re-run with an edited prompt or a different model; what you already generated stays, and re-runs are charged at their actual cost.