diff --git a/comfy_api/latest/_io.py b/comfy_api/latest/_io.py
index c527190ec..ecfb82a1e 100644
--- a/comfy_api/latest/_io.py
+++ b/comfy_api/latest/_io.py
@@ -619,13 +619,23 @@ class LossMap(ComfyTypeIO):
         loss: list[torch.Tensor]
     Type = LossMapDict
 
+
 @comfytype(io_type="VOXEL")
 class Voxel(ComfyTypeIO):
-    Type = Any # TODO: VOXEL class is defined in comfy_extras/nodes_hunyuan3d.py; should be moved to somewhere else before referenced directly in v3
+    class VoxelDict(TypedDict):
+        data: torch.Tensor
+
+    Type = VoxelDict
+
 
 @comfytype(io_type="MESH")
 class Mesh(ComfyTypeIO):
-    Type = Any # TODO: MESH class is defined in comfy_extras/nodes_hunyuan3d.py; should be moved to somewhere else before referenced directly in v3
+    class MeshDict(TypedDict):
+        vertices: list[torch.Tensor]
+        faces: list[torch.Tensor]
+
+    Type = MeshDict
+
 
 @comfytype(io_type="HOOKS")
 class Hooks(ComfyTypeIO):
diff --git a/comfy_extras/v3/nodes_hunyuan3d.py b/comfy_extras/v3/nodes_hunyuan3d.py
index a4594c4c2..966e231bf 100644
--- a/comfy_extras/v3/nodes_hunyuan3d.py
+++ b/comfy_extras/v3/nodes_hunyuan3d.py
@@ -16,17 +16,6 @@ from comfy.ldm.modules.diffusionmodules.mmdit import (
 from comfy_api.latest import io
 
 
-class VOXEL:
-    def __init__(self, data):
-        self.data = data
-
-
-class MESH:
-    def __init__(self, vertices, faces):
-        self.vertices = vertices
-        self.faces = faces
-
-
 def voxel_to_mesh(voxels, threshold=0.5, device=None):
     if device is None:
         device = torch.device("cpu")
@@ -485,11 +474,11 @@ class Hunyuan3Dv2Conditioning(io.ComfyNode):
             node_id="Hunyuan3Dv2Conditioning_V3",
             category="conditioning/video_models",
             inputs=[
-                io.ClipVisionOutput.Input("clip_vision_output")
+                io.ClipVisionOutput.Input("clip_vision_output"),
             ],
             outputs=[
                 io.Conditioning.Output(display_name="positive"),
-                io.Conditioning.Output(display_name="negative")
+                io.Conditioning.Output(display_name="negative"),
             ]
         )
 
@@ -511,11 +500,11 @@ class Hunyuan3Dv2ConditioningMultiView(io.ComfyNode):
                 io.ClipVisionOutput.Input("front", optional=True),
                 io.ClipVisionOutput.Input("left", optional=True),
                 io.ClipVisionOutput.Input("back", optional=True),
-                io.ClipVisionOutput.Input("right", optional=True)
+                io.ClipVisionOutput.Input("right", optional=True),
             ],
             outputs=[
                 io.Conditioning.Output(display_name="positive"),
-                io.Conditioning.Output(display_name="negative")
+                io.Conditioning.Output(display_name="negative"),
             ]
         )
 
@@ -552,7 +541,7 @@ class SaveGLB(io.ComfyNode):
         )
 
     @classmethod
-    def execute(cls, mesh, filename_prefix):
+    def execute(cls, mesh: io.Mesh.MeshDict, filename_prefix):
         full_output_folder, filename, counter, subfolder, filename_prefix = folder_paths.get_save_image_path(filename_prefix, folder_paths.get_output_directory())
         results = []
 
@@ -564,9 +553,9 @@ class SaveGLB(io.ComfyNode):
                 for x in cls.hidden.extra_pnginfo:
                     metadata[x] = json.dumps(cls.hidden.extra_pnginfo[x])
 
-        for i in range(mesh.vertices.shape[0]):
+        for i in range(mesh["vertices"].shape[0]):
             f = f"{filename}_{counter:05}_.glb"
-            save_glb(mesh.vertices[i], mesh.faces[i], os.path.join(full_output_folder, f), metadata)
+            save_glb(mesh["vertices"][i], mesh["faces"][i], os.path.join(full_output_folder, f), metadata)
             results.append({
                 "filename": f,
                 "subfolder": subfolder,
@@ -590,14 +579,17 @@ class VAEDecodeHunyuan3D(io.ComfyNode):
                 io.Int.Input("octree_resolution", default=256, min=16, max=512)
             ],
             outputs=[
-                io.Voxel.Output()
+                io.Voxel.Output(),
             ]
         )
 
     @classmethod
     def execute(cls, vae, samples, num_chunks, octree_resolution):
-        voxels = VOXEL(vae.decode(samples["samples"], vae_options={"num_chunks": num_chunks, "octree_resolution": octree_resolution}))
-        return io.NodeOutput(voxels)
+        return io.NodeOutput(
+            io.Voxel.VoxelDict(
+                data=vae.decode(samples["samples"], vae_options={"num_chunks": num_chunks, "octree_resolution": octree_resolution})
+            )
+        )
 
 
 class VoxelToMesh(io.ComfyNode):
@@ -612,12 +604,12 @@ class VoxelToMesh(io.ComfyNode):
                 io.Float.Input("threshold", default=0.6, min=-1.0, max=1.0, step=0.01)
             ],
             outputs=[
-                io.Mesh.Output()
+                io.Mesh.Output(),
             ]
         )
 
     @classmethod
-    def execute(cls, voxel, algorithm, threshold):
+    def execute(cls, voxel: io.Voxel.VoxelDict, algorithm, threshold):
         vertices = []
         faces = []
 
@@ -626,12 +618,12 @@ class VoxelToMesh(io.ComfyNode):
         elif algorithm == "surface net":
             mesh_function = voxel_to_mesh_surfnet
 
-        for x in voxel.data:
+        for x in voxel["data"]:
             v, f = mesh_function(x, threshold=threshold, device=None)
             vertices.append(v)
             faces.append(f)
 
-        return io.NodeOutput(MESH(torch.stack(vertices), torch.stack(faces)))
+        return io.NodeOutput(io.Mesh.MeshDict(vertices=torch.stack(vertices), faces=torch.stack(faces)))
 
 
 class VoxelToMeshBasic(io.ComfyNode):
@@ -645,20 +637,20 @@ class VoxelToMeshBasic(io.ComfyNode):
                 io.Float.Input("threshold", default=0.6, min=-1.0, max=1.0, step=0.01)
             ],
             outputs=[
-                io.Mesh.Output()
+                io.Mesh.Output(),
             ]
         )
 
     @classmethod
-    def execute(cls, voxel, threshold):
+    def execute(cls, voxel: io.Voxel.VoxelDict, threshold):
         vertices = []
         faces = []
-        for x in voxel.data:
+        for x in voxel["data"]:
             v, f = voxel_to_mesh(x, threshold=threshold, device=None)
             vertices.append(v)
             faces.append(f)
 
-        return io.NodeOutput(MESH(torch.stack(vertices), torch.stack(faces)))
+        return io.NodeOutput(io.Mesh.MeshDict(vertices=torch.stack(vertices), faces=torch.stack(faces)))
 
 
 NODES_LIST: list[type[io.ComfyNode]] = [