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Detection code to make ltxv models without config work. (#7986)

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comfyanonymous 2025-05-07 18:28:24 -07:00 committed by GitHub
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comfy/model_detection.py
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@ -222,6 +222,10 @@ def detect_unet_config(state_dict, key_prefix, metadata=None):
if '{}adaln_single.emb.timestep_embedder.linear_1.bias'.format(key_prefix) in state_dict_keys: #Lightricks ltxv
dit_config = {}
dit_config["image_model"] = "ltxv"
dit_config["num_layers"] = count_blocks(state_dict_keys, '{}transformer_blocks.'.format(key_prefix) + '{}.')
shape = state_dict['{}transformer_blocks.0.attn2.to_k.weight'.format(key_prefix)].shape
dit_config["attention_head_dim"] = shape[0] // 32
dit_config["cross_attention_dim"] = shape[1]
if metadata is not None and "config" in metadata:
dit_config.update(json.loads(metadata["config"]).get("transformer", {}))
return dit_config