diff --git a/zeromodels/base/base_mixin.py b/zeromodels/base/base_mixin.py
index 247dfa14..093fdfc3 100644
--- a/zeromodels/base/base_mixin.py
+++ b/zeromodels/base/base_mixin.py
@@ -12,7 +12,10 @@
 from huggingface_hub import hf_hub_download
 
 from zeromodels.base import base_attention
-from zeromodels.conversion import download_weights
+from zeromodels.conversion.file_downloader import (
+    download_weights,
+    is_huggingface_url,
+)
 from zeromodels.conversion.hf_download_utils import (
     download_hf_state_dict,
 )
@@ -65,7 +68,7 @@ def _url_exists(url):
     """True if a range GET on ``url`` succeeds (uses HF_TOKEN for hf.co if set)."""
     headers = {"User-Agent": "zeromodels", "Range": "bytes=0-0"}
     token = os.environ.get("HF_TOKEN")
-    if token and "huggingface.co" in url:
+    if token and is_huggingface_url(url):
         headers["Authorization"] = f"Bearer {token}"
     try:
         with urllib.request.urlopen(
diff --git a/zeromodels/conversion/file_downloader.py b/zeromodels/conversion/file_downloader.py
index d165ac12..ecf59067 100644
--- a/zeromodels/conversion/file_downloader.py
+++ b/zeromodels/conversion/file_downloader.py
@@ -5,6 +5,24 @@
 from typing import Optional
 from urllib.parse import urlparse
 
+_HUGGING_FACE_HOSTS = frozenset({"huggingface.co", "www.huggingface.co"})
+
+
+def is_huggingface_url(url: str) -> bool:
+    """Return whether ``url`` is a trusted HTTPS Hugging Face URL.
+
+    Authentication tokens must only be attached after parsing the URL. A substring
+    check would also match attacker-controlled hosts, paths, and query strings that
+    merely contain ``huggingface.co``.
+    """
+    try:
+        parsed = urlparse(url)
+        return (
+            parsed.scheme.lower() == "https" and parsed.hostname in _HUGGING_FACE_HOSTS
+        )
+    except (TypeError, ValueError):
+        return False
+
 
 def validate_url(url: str) -> bool:
     """Validate if the provided URL is well-formed.
@@ -30,7 +48,7 @@ def _parse_hf_resolve(url: str):
     fall back to a plain streamed download.
     """
     parsed = urlparse(url)
-    if parsed.netloc not in ("huggingface.co", "www.huggingface.co"):
+    if not is_huggingface_url(url):
         return None
     parts = parsed.path.strip("/").split("/")
     if len(parts) < 5 or parts[2] != "resolve":
@@ -94,7 +112,7 @@ def download_file(
 
     headers = {"User-Agent": "zeromodels"}
     token = os.environ.get("HF_TOKEN")
-    if token and "huggingface.co" in file_url:
+    if token and is_huggingface_url(file_url):
         headers["Authorization"] = f"Bearer {token}"
 
     # Stream to a sibling ``.incomplete`` file, then atomically move it into
diff --git a/zeromodels/models/glm5_moe/glm5_moe_layers.py b/zeromodels/models/glm5_moe/glm5_moe_layers.py
index abecb668..498f9182 100644
--- a/zeromodels/models/glm5_moe/glm5_moe_layers.py
+++ b/zeromodels/models/glm5_moe/glm5_moe_layers.py
@@ -285,7 +285,7 @@ def call(self, hidden_states, q_resid, cos, sin, attention_mask):
         k_pe = apply_rope(k_pe[:, :, None, :], cos, sin, unsqueeze_axis=2)[:, :, 0, :]
         k = ops.concatenate([k_pe, k_nope], axis=-1)
 
-        weights = self.weights_proj(ops.cast(hidden_states, "float32")) * (
+        weights = ops.cast(self.weights_proj(hidden_states), "float32") * (
             self.n_heads**-0.5
         )  # (B, S, H)
         scores = (
diff --git a/zeromodels/models/grounding_dino/__init__.py b/zeromodels/models/grounding_dino/__init__.py
index bd132b4d..de0e5c18 100644
--- a/zeromodels/models/grounding_dino/__init__.py
+++ b/zeromodels/models/grounding_dino/__init__.py
@@ -6,7 +6,6 @@
 )
 from zeromodels.models.grounding_dino.grounding_dino_model import (
     GroundingDinoDetect,
-    GroundingDinoForObjectDetection,
     GroundingDinoModel,
 )
 from zeromodels.models.grounding_dino.grounding_dino_processor import (
@@ -23,7 +22,6 @@
     "GroundingDinoConfig",
     "GroundingDinoModel",
     "GroundingDinoDetect",
-    "GroundingDinoForObjectDetection",
     "GroundingDinoTextModel",
     "GroundingDinoTokenizer",
     "GroundingDinoImageProcessor",
diff --git a/zeromodels/models/grounding_dino/grounding_dino_model.py b/zeromodels/models/grounding_dino/grounding_dino_model.py
index c8e246b3..9e9ea446 100644
--- a/zeromodels/models/grounding_dino/grounding_dino_model.py
+++ b/zeromodels/models/grounding_dino/grounding_dino_model.py
@@ -740,7 +740,3 @@ class GroundingDinoDetect(_GroundingDinoFunctional):
     """
 
     core_class = GroundingDinoDetectCore
-
-
-# Backward-compatible alias for the previous class name.
-GroundingDinoForObjectDetection = GroundingDinoDetect