diff --git a/api/onnx_web/convert/diffusion/diffusion_xl.py b/api/onnx_web/convert/diffusion/diffusion_xl.py
index 2ec60f93..6e8424ec 100644
--- a/api/onnx_web/convert/diffusion/diffusion_xl.py
+++ b/api/onnx_web/convert/diffusion/diffusion_xl.py
@@ -10,6 +10,7 @@ from onnxruntime.transformers.float16 import convert_float_to_float16
 from optimum.exporters.onnx import main_export
 
 from ...constants import ONNX_MODEL, ONNX_WEIGHTS
+from ...utils import run_gc
 from ..client import fetch_model
 from ..utils import RESOLVE_FORMATS, ConversionContext, check_ext
 
@@ -79,6 +80,10 @@ def convert_diffusion_diffusers_xl(
         logger.debug("exporting torch model for %s: %s", source, temp_path)
         pipeline.save_pretrained(temp_path)
 
+    # GC temporary pipeline
+    del pipeline
+    run_gc()
+
     # directory -> onnx using optimum exporters
     main_export(
         temp_path,