The super3 command is missing the data package, as imported here:

https://github.com/NVIDIA-NeMo/Nemotron/blob/main/src/nemotron/cli/commands/super3/_typer_group.py#L26

nano3 has a data package at https://github.com/NVIDIA-NeMo/Nemotron/tree/main/src/nemotron/cli/commands/nano3/data but it looks like the super3 one accidently wasn't checked in