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app.py

@@ -182,7 +182,7 @@ def build_prompt(expression: str, use_think_format: bool) -> str:
 @spaces.GPU(duration=30)
 def solve(
     expression: str,
-    use_think_format: bool = False,
+    use_think_format: bool = True,
     temperature: float = 0.5,
     top_k: int = 40,
     top_p: float = 0.95,
@@ -308,9 +308,13 @@ with gr.Blocks(theme=gr.themes.Citrus(), css=CSS) as demo:
 
         with gr.Accordion("Advanced settings", open=False):
             use_think_format = gr.Checkbox(
-                label="Use production /no think chat template",
-                value=False,
-                info="Wraps the input in the [IM_START]/[IM_END] template with a <think> block.",
+                label="Use production /no think chat template (recommended)",
+                value=True,
+                info=(
+                    "Wraps the input in the [IM_START]/[IM_END] template with a "
+                    "<think> block — the format the model was trained for, and "
+                    "the most reliable. Uncheck for raw free-continuation mode."
+                ),
             )
             temperature = gr.Slider(0.0, 1.0, value=0.5, step=0.05, label="Temperature")
             top_k = gr.Slider(0, 100, value=40, step=1, label="Top-k")