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app.py

@@ -3,7 +3,6 @@ from __future__ import annotations
 import csv
 import os
 import tempfile
-import threading
 from pathlib import Path
 from typing import Any
 
@@ -22,6 +21,7 @@ from space_runtime import (
 MODEL_REPO_ID = os.getenv("MODEL_REPO_ID", "lighteternal/BioAssayAlign-Qwen3-Embedding-0.6B-Compatibility")
 MAX_INPUT_SMILES = int(os.getenv("MAX_INPUT_SMILES", "3000"))
 DEFAULT_TOP_K = int(os.getenv("DEFAULT_TOP_K", "50"))
+ENABLE_BACKGROUND_WARMUP = os.getenv("ENABLE_BACKGROUND_WARMUP", "0") == "1"
 
 CSS = """
 @import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&family=Fraunces:opsz,wght@9..144,600;9..144,700&display=swap');
@@ -954,7 +954,9 @@ with gr.Blocks(title="BioAssayAlign Compatibility Explorer", analytics_enabled=F
         )
 
 if __name__ == "__main__":
-    threading.Thread(target=_warm_model_background, daemon=True).start()
+    if ENABLE_BACKGROUND_WARMUP:
+        import threading
+        threading.Thread(target=_warm_model_background, daemon=True).start()
     demo.queue(default_concurrency_limit=4).launch(
         show_error=True,
         quiet=True,