diff --git a/app/src/main/java/com/dark/tool_neuron/engine/GGUFEngine.kt b/app/src/main/java/com/dark/tool_neuron/engine/GGUFEngine.kt
index fb0e05ac..c333d465 100644
--- a/app/src/main/java/com/dark/tool_neuron/engine/GGUFEngine.kt
+++ b/app/src/main/java/com/dark/tool_neuron/engine/GGUFEngine.kt
@@ -64,7 +64,12 @@ class GGUFEngine {
                 nativeLib.nativeSetSystemPrompt(inference.systemPrompt)
             }
             if (inference.chatTemplate.isNotEmpty()) {
-                nativeLib.nativeSetChatTemplate(inference.chatTemplate)
+                val template = if (!inference.enableThinking) {
+                    "{% set enable_thinking = false %}\n" + inference.chatTemplate
+                } else {
+                    inference.chatTemplate
+                }
+                nativeLib.nativeSetChatTemplate(template)
             }
         }
 
@@ -115,7 +120,12 @@ class GGUFEngine {
                 nativeLib.nativeSetSystemPrompt(inference.systemPrompt)
             }
             if (inference.chatTemplate.isNotEmpty()) {
-                nativeLib.nativeSetChatTemplate(inference.chatTemplate)
+                val template = if (!inference.enableThinking) {
+                    "{% set enable_thinking = false %}\n" + inference.chatTemplate
+                } else {
+                    inference.chatTemplate
+                }
+                nativeLib.nativeSetChatTemplate(template)
             }
         }
 
diff --git a/app/src/main/java/com/dark/tool_neuron/models/engine_schema/GgufEngineSchema.kt b/app/src/main/java/com/dark/tool_neuron/models/engine_schema/GgufEngineSchema.kt
index d59d1c97..84450129 100644
--- a/app/src/main/java/com/dark/tool_neuron/models/engine_schema/GgufEngineSchema.kt
+++ b/app/src/main/java/com/dark/tool_neuron/models/engine_schema/GgufEngineSchema.kt
@@ -72,7 +72,8 @@ data class GgufInferenceParams(
     val maxTokens: Int = 4096,
     val systemPrompt: String = "",
     val chatTemplate: String = "",
-    val toolsJson: String = ""  // JSON array of tool definitions
+    val toolsJson: String = "",  // JSON array of tool definitions
+    val enableThinking: Boolean = true // Enable/Disable Qwen3.5 thinking tokens
 )
 
 @Serializable
diff --git a/app/src/main/java/com/dark/tool_neuron/ui/screen/ModelConfigEditorScreen.kt b/app/src/main/java/com/dark/tool_neuron/ui/screen/ModelConfigEditorScreen.kt
index f611853d..50d8f090 100644
--- a/app/src/main/java/com/dark/tool_neuron/ui/screen/ModelConfigEditorScreen.kt
+++ b/app/src/main/java/com/dark/tool_neuron/ui/screen/ModelConfigEditorScreen.kt
@@ -463,6 +463,13 @@ private fun GgufConfigEditor(viewModel: ModelConfigEditorViewModel) {
                 multiline = true,
                 minLines = 3
             )
+
+            SwitchField(
+                label = "Enable Thinking",
+                description = "Enable reasoning tokens for supported models (e.g., Qwen3.5)",
+                checked = ggufConfig.inferenceParams.enableThinking,
+                onCheckedChange = { viewModel.updateGgufEnableThinking(it) }
+            )
         }
     }
 }
diff --git a/app/src/main/java/com/dark/tool_neuron/viewmodel/ModelConfigEditorViewModel.kt b/app/src/main/java/com/dark/tool_neuron/viewmodel/ModelConfigEditorViewModel.kt
index 59fb9f6f..257aa689 100644
--- a/app/src/main/java/com/dark/tool_neuron/viewmodel/ModelConfigEditorViewModel.kt
+++ b/app/src/main/java/com/dark/tool_neuron/viewmodel/ModelConfigEditorViewModel.kt
@@ -247,6 +247,12 @@ class ModelConfigEditorViewModel @Inject constructor(
         }
     }
 
+    fun updateGgufEnableThinking(value: Boolean) {
+        _ggufConfig.update {
+            it.copy(inferenceParams = it.inferenceParams.copy(enableThinking = value))
+        }
+    }
+
     // ==================== Diffusion Config Updates ====================
 
     fun updateDiffusionEmbeddingSize(value: Int) {