diff --git a/core/java/android/view/textclassifier/TextClassificationConstants.java b/core/java/android/view/textclassifier/TextClassificationConstants.java
index d0ed8eef7749fb24c6063cfc1b79135b01b25b24..7dd77191cb0882f17a08e9234057d3212d402c0d 100644
--- a/core/java/android/view/textclassifier/TextClassificationConstants.java
+++ b/core/java/android/view/textclassifier/TextClassificationConstants.java
@@ -137,10 +137,6 @@ public final class TextClassificationConstants {
                     properties.getBoolean(
                             LOCAL_TEXT_CLASSIFIER_ENABLED,
                             LOCAL_TEXT_CLASSIFIER_ENABLED_DEFAULT);
-            sSystemTextClassifierEnabled =
-                    properties.getBoolean(
-                            SYSTEM_TEXT_CLASSIFIER_ENABLED,
-                            SYSTEM_TEXT_CLASSIFIER_ENABLED_DEFAULT);
             sModelDarkLaunchEnabled =
                     properties.getBoolean(
                             MODEL_DARK_LAUNCH_ENABLED,
@@ -199,8 +195,11 @@ public final class TextClassificationConstants {
     }
 
     public boolean isSystemTextClassifierEnabled() {
-        ensureMemoizedValues();
-        return sSystemTextClassifierEnabled;
+        // Don't memoize this value because we want to be able to receive config
+        // updates at runtime.
+        return DeviceConfig.getBoolean(DeviceConfig.NAMESPACE_TEXTCLASSIFIER,
+                SYSTEM_TEXT_CLASSIFIER_ENABLED,
+                SYSTEM_TEXT_CLASSIFIER_ENABLED_DEFAULT);
     }
 
     public boolean isModelDarkLaunchEnabled() {
diff --git a/core/tests/coretests/src/android/view/textclassifier/TextClassificationConstantsTest.java b/core/tests/coretests/src/android/view/textclassifier/TextClassificationConstantsTest.java
index a567b4bd5a482bf0d00c736d6f83d2f02af1f542..20a876809ba08002b3aeadd082104cc6d61cc152 100644
--- a/core/tests/coretests/src/android/view/textclassifier/TextClassificationConstantsTest.java
+++ b/core/tests/coretests/src/android/view/textclassifier/TextClassificationConstantsTest.java
@@ -28,6 +28,7 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 
 import java.util.function.Consumer;
+import java.util.function.Predicate;
 
 @SmallTest
 @RunWith(AndroidJUnit4.class)
@@ -74,6 +75,13 @@ public class TextClassificationConstantsTest {
                         .isEqualTo(1));
     }
 
+    @Test
+    public void runtimeMutableSettings() {
+        assertOverride(
+                TextClassificationConstants.SYSTEM_TEXT_CLASSIFIER_ENABLED,
+                settings -> settings.isSystemTextClassifierEnabled());
+    }
+
     private static void assertSettings(
             String key, String value, Consumer<TextClassificationConstants> settingsConsumer) {
         final String originalValue =
@@ -87,6 +95,21 @@ public class TextClassificationConstantsTest {
         }
     }
 
+    private static void assertOverride(
+            String key, Predicate<TextClassificationConstants> settingsPredicate) {
+        final String originalValue =
+                DeviceConfig.getProperty(DeviceConfig.NAMESPACE_TEXTCLASSIFIER, key);
+        TextClassificationConstants settings = new TextClassificationConstants();
+        try {
+            setDeviceConfig(key, "true");
+            assertThat(settingsPredicate.test(settings)).isTrue();
+            setDeviceConfig(key, "false");
+            assertThat(settingsPredicate.test(settings)).isFalse();
+        } finally {
+            setDeviceConfig(key, originalValue);
+        }
+    }
+
     private static void setDeviceConfig(String key, String value) {
         DeviceConfig.setProperty(
                 DeviceConfig.NAMESPACE_TEXTCLASSIFIER, key, value, /* makeDefault */ false);