From dd611a7700956f45f393dee32fb8505de176dc66 Mon Sep 17 00:00:00 2001
From: comfyanonymous <121283862+comfyanonymous@users.noreply.github.com>
Date: Wed, 17 Sep 2025 15:39:24 -0700
Subject: [PATCH] Support the HuMo 17B model. (#9912)

---
 comfy/ldm/wan/model.py |  2 +-
 comfy/model_base.py    | 29 ++++++++++++++++++++++++++---
 2 files changed, 27 insertions(+), 4 deletions(-)

diff --git a/comfy/ldm/wan/model.py b/comfy/ldm/wan/model.py
index b3b7da5d5..9cf3c171d 100644
--- a/comfy/ldm/wan/model.py
+++ b/comfy/ldm/wan/model.py
@@ -1364,7 +1364,7 @@ class AudioCrossAttentionWrapper(nn.Module):
     def __init__(self, dim, kv_dim, num_heads, qk_norm=True, eps=1e-6, operation_settings={}):
         super().__init__()
 
-        self.audio_cross_attn = WanT2VCrossAttentionGather(dim, num_heads, qk_norm, kv_dim, eps, operation_settings=operation_settings)
+        self.audio_cross_attn = WanT2VCrossAttentionGather(dim, num_heads, qk_norm=qk_norm, kv_dim=kv_dim, eps=eps, operation_settings=operation_settings)
         self.norm1_audio = operation_settings.get("operations").LayerNorm(dim, eps, elementwise_affine=True, device=operation_settings.get("device"), dtype=operation_settings.get("dtype"))
 
     def forward(self, x, audio, transformer_options={}):
diff --git a/comfy/model_base.py b/comfy/model_base.py
index cf99035da..70b67b7c1 100644
--- a/comfy/model_base.py
+++ b/comfy/model_base.py
@@ -1220,14 +1220,37 @@ class WAN21_HuMo(WAN21):
 
     def extra_conds(self, **kwargs):
         out = super().extra_conds(**kwargs)
+        noise = kwargs.get("noise", None)
 
         audio_embed = kwargs.get("audio_embed", None)
         if audio_embed is not None:
             out['audio_embed'] = comfy.conds.CONDRegular(audio_embed)
 
-        reference_latents = kwargs.get("reference_latents", None)
-        if reference_latents is not None:
-            out['reference_latent'] = comfy.conds.CONDRegular(self.process_latent_in(reference_latents[-1]))
+        if "c_concat" not in out:  # 1.7B model
+            reference_latents = kwargs.get("reference_latents", None)
+            if reference_latents is not None:
+                out['reference_latent'] = comfy.conds.CONDRegular(self.process_latent_in(reference_latents[-1]))
+        else:
+            noise_shape = list(noise.shape)
+            noise_shape[1] += 4
+            concat_latent = torch.zeros(noise_shape, device=noise.device, dtype=noise.dtype)
+            zero_vae_values_first = torch.tensor([0.8660, -0.4326, -0.0017, -0.4884, -0.5283, 0.9207, -0.9896, 0.4433, -0.5543, -0.0113, 0.5753, -0.6000, -0.8346, -0.3497, -0.1926, -0.6938]).view(1, 16, 1, 1, 1)
+            zero_vae_values_second = torch.tensor([1.0869, -1.2370, 0.0206, -0.4357, -0.6411, 2.0307, -1.5972, 1.2659, -0.8595, -0.4654, 0.9638, -1.6330, -1.4310, -0.1098, -0.3856, -1.4583]).view(1, 16, 1, 1, 1)
+            zero_vae_values = torch.tensor([0.8642, -1.8583, 0.1577, 0.1350, -0.3641, 2.5863, -1.9670, 1.6065, -1.0475, -0.8678, 1.1734, -1.8138, -1.5933, -0.7721, -0.3289, -1.3745]).view(1, 16, 1, 1, 1)
+            concat_latent[:, 4:] = zero_vae_values
+            concat_latent[:, 4:, :1] = zero_vae_values_first
+            concat_latent[:, 4:, 1:2] = zero_vae_values_second
+            out['c_concat'] = comfy.conds.CONDNoiseShape(concat_latent)
+            reference_latents = kwargs.get("reference_latents", None)
+            if reference_latents is not None:
+                ref_latent = self.process_latent_in(reference_latents[-1])
+                ref_latent_shape = list(ref_latent.shape)
+                ref_latent_shape[1] += 4 + ref_latent_shape[1]
+                ref_latent_full = torch.zeros(ref_latent_shape, device=ref_latent.device, dtype=ref_latent.dtype)
+                ref_latent_full[:, 20:] = ref_latent
+                ref_latent_full[:, 16:20] = 1.0
+                out['reference_latent'] = comfy.conds.CONDRegular(ref_latent_full)
+
         return out
 
 class WAN22_S2V(WAN21):