h3-blackwell-runtime/tools/inspect_checkpoint_tensors.py

"""List selected H3 checkpoint tensor shapes."""

import argparse

from safetensors import safe_open


parser = argparse.ArgumentParser()
parser.add_argument("--checkpoint", default="/models/minimax_h3_fl2va_pruned_nvfp4.safetensors")
parser.add_argument("--prefix", action="append", default=[])
args = parser.parse_args()
prefixes = tuple(args.prefix) or ("adaln_t_table", "blocks.0.adaln_proj", "final_layer.adaln_proj")

with safe_open(args.checkpoint, framework="pt", device="cpu") as checkpoint:
    for name in checkpoint.keys():
        if any(name == prefix or name.startswith(prefix) for prefix in prefixes):
            tensor = checkpoint.get_tensor(name)
            print(name, tuple(tensor.shape), tensor.dtype)