Update app.py

app.py

@@ -18,7 +18,12 @@ model_card = ModelCard(
     description=(
     "Separates a full music track into its core components using the Demucs model. \n"
     "Input: A stereo music mix (WAV or MP3) containing multiple instruments or vocals.\n"
-    "Output: Four individual audio stems:- Drums, Bass, Vocals, Other-instrumental, each isolated with high fidelity for remixing or analysis."
+    "Output: Four individual audio stems:- Drums, Bass, Vocals, Other-instrumental, each isolated with high fidelity for remixing or analysis. \n\n"
+    "**Model Variants and Recommendations:**\n"
+        "1. **htdemucs**: Best overall realism and clarity (default)\n"
+        "2. **mdx_extra_q**: Highest vocal quality and cleaner separation\n"
+        "3. **mdx_extra**: Balanced trade-off between speed and accuracy\n"
+        "4. **mdx_q**: Lightweight and fast, suitable for quick previews or limited hardware\n\n"
     ),
     author="Alexandre Défossez, et al.",
     tags=["demucs", "source-separation", "pyharp", "stems", "multi-output"]