From 57dd6c1aadf500d90f635a8d3c15418c0d6d6ecd Mon Sep 17 00:00:00 2001 From: comfyanonymous <121283862+comfyanonymous@users.noreply.github.com> Date: Mon, 2 Mar 2026 15:54:18 -0800 Subject: [PATCH] Support loading zeta chroma weights properly. (#12734) --- comfy/model_detection.py | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/comfy/model_detection.py b/comfy/model_detection.py index 3faa950ca..9f4a26e61 100644 --- a/comfy/model_detection.py +++ b/comfy/model_detection.py @@ -423,7 +423,7 @@ def detect_unet_config(state_dict, key_prefix, metadata=None): dit_config["extra_per_block_abs_pos_emb_type"] = "learnable" return dit_config - if '{}cap_embedder.1.weight'.format(key_prefix) in state_dict_keys: # Lumina 2 + if '{}cap_embedder.1.weight'.format(key_prefix) in state_dict_keys and '{}noise_refiner.0.attention.k_norm.weight'.format(key_prefix) in state_dict_keys: # Lumina 2 dit_config = {} dit_config["image_model"] = "lumina2" dit_config["patch_size"] = 2 @@ -533,8 +533,7 @@ def detect_unet_config(state_dict, key_prefix, metadata=None): dit_config["guidance_embed"] = "{}guidance_in.in_layer.weight".format(key_prefix) in state_dict_keys return dit_config - if f"{key_prefix}t_embedder.mlp.2.weight" in state_dict_keys: # Hunyuan 3D 2.1 - + if f"{key_prefix}t_embedder.mlp.2.weight" in state_dict_keys and f"{key_prefix}blocks.0.attn1.k_norm.weight" in state_dict_keys: # Hunyuan 3D 2.1 dit_config = {} dit_config["image_model"] = "hunyuan3d2_1" dit_config["in_channels"] = state_dict[f"{key_prefix}x_embedder.weight"].shape[1] @@ -1055,6 +1054,13 @@ def convert_diffusers_mmdit(state_dict, output_prefix=""): elif 'adaln_single.emb.timestep_embedder.linear_1.bias' in state_dict and 'pos_embed.proj.bias' in state_dict: # PixArt num_blocks = count_blocks(state_dict, 'transformer_blocks.{}.') sd_map = comfy.utils.pixart_to_diffusers({"depth": num_blocks}, output_prefix=output_prefix) + elif 'noise_refiner.0.attention.norm_k.weight' in state_dict: + n_layers = count_blocks(state_dict, 'layers.{}.') + dim = state_dict['noise_refiner.0.attention.to_k.weight'].shape[0] + sd_map = comfy.utils.z_image_to_diffusers({"n_layers": n_layers, "dim": dim}, output_prefix=output_prefix) + for k in state_dict: # For zeta chroma + if k not in sd_map: + sd_map[k] = k elif 'x_embedder.weight' in state_dict: #Flux depth = count_blocks(state_dict, 'transformer_blocks.{}.') depth_single_blocks = count_blocks(state_dict, 'single_transformer_blocks.{}.')