1. update changelog; 2. import onnxslim on top level; 3. pin mimimal onnxslim version and deduplication

Signed-off-by: inisis <[email protected]>

Author: inisis

CHANGELOG.rst

@@ -25,6 +25,7 @@ Model Optimizer Changelog (Linux)
 **Misc**
 
 - Bump minimum recommended transformers version to 4.53.
+- Replace ONNX simplification package from 'onnxsim' to 'onnxslim'
 
 0.39 (2025-11-11)
 ^^^^^^^^^^^^^^^^^

modelopt/onnx/quantization/quantize.py

@@ -40,6 +40,7 @@
 
 import onnx
 import onnx.onnx_cpp2py_export.checker as C
+import onnxslim
 import onnx_graphsurgeon as gs
 
 from modelopt.onnx.logging_config import configure_logging, logger
@@ -132,13 +133,6 @@ def _preprocess_onnx(
     # Simplify model if requested
     if simplify:
         logger.info("Attempting to simplify model")
-        try:
-            import onnxslim
-        except ModuleNotFoundError as e:
-            logger.warning(
-                "onnxslim is not installed. Please install it with 'pip install onnxslim'."
-            )
-            raise e
 
         try:
             model_simp = onnxslim.slim(onnx_model, skip_fusion_patterns=["FusionGemm"])

setup.py

@@ -51,10 +51,9 @@
         "onnxruntime~=1.22.0 ; platform_machine == 'aarch64' or platform_system == 'Darwin'",
         "onnxruntime-gpu~=1.22.0 ; platform_machine != 'aarch64' and platform_system != 'Darwin' and platform_system != 'Windows'",  # noqa: E501
         "onnxruntime-directml==1.20.0; platform_system == 'Windows'",
-        "onnxscript",  # For test_onnx_dynamo_export unit test
         "onnxscript",  # For autocast opset conversion and test_onnx_dynamo_export unit test
         "polygraphy>=0.49.22",
-        "onnxslim",
+        "onnxslim>=0.1.75",
     ],
     "hf": [
         "accelerate>=1.0.0",