diff --git a/python/sglang/srt/distributed/device_communicators/pynccl_wrapper.py b/python/sglang/srt/distributed/device_communicators/pynccl_wrapper.py
index 579811777..6b12f2922 100644
--- a/python/sglang/srt/distributed/device_communicators/pynccl_wrapper.py
+++ b/python/sglang/srt/distributed/device_communicators/pynccl_wrapper.py
@@ -340,10 +340,10 @@ class NCCLLibrary:
             self.lib = NCCLLibrary.path_to_library_cache[so_file]
         except Exception as e:
             logger.error(
-                "Failed to load NCCL library from %s ."
-                "It is expected if you are not running on NVIDIA/AMD GPUs."
+                "Failed to load NCCL library from %s . "
+                "It is expected if you are not running on NVIDIA/AMD GPUs. "
                 "Otherwise, the nccl library might not exist, be corrupted "
-                "or it does not support the current platform %s."
+                "or it does not support the current platform %s. "
                 "If you already have the library, please set the "
                 "environment variable SGLANG_NCCL_SO_PATH"
                 " to point to the correct nccl library path.",
diff --git a/python/sglang/srt/environ.py b/python/sglang/srt/environ.py
index 3903f0be5..8bec1c3c8 100644
--- a/python/sglang/srt/environ.py
+++ b/python/sglang/srt/environ.py
@@ -75,6 +75,11 @@ class EnvField:
         return self.get()
 
 
+class EnvTuple(EnvField):
+    def parse(self, value: str) -> tuple[str, ...]:
+        return tuple(s.strip() for s in value.split(",") if s.strip())
+
+
 class EnvStr(EnvField):
     def parse(self, value: str) -> str:
         return value
@@ -125,6 +130,7 @@ class Envs:
 
     # Model & File Download
     SGLANG_USE_MODELSCOPE = EnvBool(False)
+    SGLANG_DISABLED_MODEL_ARCHS = EnvTuple(tuple())
 
     # Logging Options
     SGLANG_LOG_GC = EnvBool(False)
diff --git a/python/sglang/srt/models/registry.py b/python/sglang/srt/models/registry.py
index 5e2a3c67e..1745b7d7b 100644
--- a/python/sglang/srt/models/registry.py
+++ b/python/sglang/srt/models/registry.py
@@ -9,6 +9,8 @@ from typing import AbstractSet, Dict, List, Optional, Tuple, Type, Union
 
 import torch.nn as nn
 
+from sglang.srt.environ import envs
+
 logger = logging.getLogger(__name__)
 
 
@@ -91,6 +93,10 @@ def import_model_classes(package_name: str):
     package = importlib.import_module(package_name)
     for _, name, ispkg in pkgutil.iter_modules(package.__path__, package_name + "."):
         if not ispkg:
+            if name.split(".")[-1] in envs.SGLANG_DISABLED_MODEL_ARCHS.get():
+                logger.debug(f"Skip loading {name} due to SGLANG_DISABLED_MODEL_ARCHS")
+                continue
+
             try:
                 module = importlib.import_module(name)
             except Exception as e: