diff -u b/core/modules/node/node.tokens.inc b/core/modules/node/node.tokens.inc
--- b/core/modules/node/node.tokens.inc
+++ b/core/modules/node/node.tokens.inc
@@ -130,17 +130,17 @@
           $translation = \Drupal::entityManager()->getTranslationFromContext($node, $langcode, ['operation' => 'node_tokens']);
           if ($translation->hasField('body') && ($items = $translation->get('body')) && !$items->isEmpty()) {
             $item = $items[0];
-            // If the summary was requested and is not empty, use it.
-            if ($name == 'summary' && !empty($item->summary)) {
-              $output = $item->summary_processed;
+
+            if ($name === 'body') {
+              $output = $item->processed;
             }
-            // Attempt to provide a suitable version of the 'body' field.
             else {
-              $output = $item->processed;
-              // A summary was requested.
-              if ($name == 'summary') {
-                // Generate an optionally trimmed summary of the body field.
-
+              // If the summary was requested and is not empty, use it.
+              if (!empty($item->summary)) {
+                $output = $item->summary_processed;
+              }
+              // Else generate an optionally trimmed summary of the body field.
+              else {
                 // Get the 'trim_length' size used for the 'teaser' mode, if
                 // present, or use the default trim_length size.
                 $display_options = entity_get_display('node', $node->getType(), 'teaser')->getComponent('body');
@@ -152,14 +152,10 @@
                   $length = $settings['trim_length'];
                 }
 
-                // Cast to string, because "processed" returns a
-                // \Drupal\Component\Render\MarkupInterface via check_markup()
-                // and all unicode utilities expect string input.
-                $output = text_summary((string) $output, $item->format, $length);
+                $output = text_summary($item->value, $item->format, $length);
               }
             }
-            // "processed" returns a \Drupal\Component\Render\MarkupInterface
-            // via check_markup().
+
             $replacements[$original] = $output;
           }
           break;
diff -u b/core/modules/node/tests/src/Kernel/NodeTokenReplaceTest.php b/core/modules/node/tests/src/Kernel/NodeTokenReplaceTest.php
--- b/core/modules/node/tests/src/Kernel/NodeTokenReplaceTest.php
+++ b/core/modules/node/tests/src/Kernel/NodeTokenReplaceTest.php
@@ -19,7 +19,7 @@
 class NodeTokenReplaceTest extends TokenReplaceKernelTestBase {
 
   /**
-   * User account used as node author.
+   * User account used as a node author.
    *
    * @var \Drupal\user\Entity\User
    */
@@ -120,18 +120,19 @@
    * Tests the [node:summary] token.
    */
   public function testNodeSummaryTokenReplacement() {
-    // Length of this text is 828 characters and it's longer than a default
+    // Length of this text is 843 characters and it's longer than a default
     // trim length setting (600).
-    $text = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi diam dui, finibus et purus ac, elementum pretium augue. '
-        . 'Fusce lacus nisl, feugiat sit amet blandit sed, mattis eu ligula. Duis laoreet dui non felis maximus fringilla. '
-        . 'Maecenas tempor magna id urna dapibus, in elementum mauris consequat. '
-        . 'Praesent in urna non felis fringilla ullamcorper interdum eu risus. '
-        . 'Vestibulum id erat ultrices, varius est sed, dignissim dui. Vestibulum a dapibus nisl. '
-        . 'Maecenas vestibulum nibh a aliquet mollis. Donec ac justo eget justo interdum faucibus. '
-        . 'Aenean sit amet finibus turpis. Donec viverra vel eros eget varius. Praesent rutrum est diam. '
-        . 'Mauris at odio scelerisque, mattis mi et, tempor eros. '
-        . 'Vestibulum sollicitudin sem quis diam sollicitudin posuere. Nam finibus vestibulum suscipit. '
-        . 'Fusce tempor tincidunt lorem vitae mollis.';
+    $text = '<blink>Lorem ipsum</blink> dolor sit amet, consectetur adipiscing elit. '
+      . 'Morbi diam dui, finibus et purus ac, elementum pretium augue. '
+      . 'Fusce lacus nisl, feugiat sit amet blandit sed, mattis eu ligula. Duis laoreet dui non felis maximus fringilla. '
+      . 'Maecenas tempor magna id urna dapibus, in elementum mauris consequat. '
+      . 'Praesent in urna non felis fringilla ullamcorper interdum eu risus. '
+      . 'Vestibulum id erat ultrices, varius est sed, dignissim dui. Vestibulum a dapibus nisl. '
+      . 'Maecenas vestibulum nibh a aliquet mollis. Donec ac justo eget justo interdum faucibus. '
+      . 'Aenean sit amet finibus turpis. Donec viverra vel eros eget varius. Praesent rutrum est diam. '
+      . 'Mauris at odio scelerisque, mattis mi et, tempor eros. '
+      . 'Vestibulum sollicitudin sem quis diam sollicitudin posuere. Nam finibus vestibulum suscipit. '
+      . 'Fusce tempor tincidunt lorem vitae mollis.';
     // Create a node.
     /* @var $node \Drupal\node\NodeInterface */
     $node = Node::create([
@@ -162,21 +163,22 @@
     // formatter of teaser view mode.
     $view_display->setComponent('body', [
       'type' => 'text_summary_or_trimmed',
-      'settings' => ['trim_length' => 130],
+      'settings' => ['trim_length' => 160],
     ]);
     $view_display->save();
-    $expected_trimmed_to_130 = Html::escape('<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi diam dui, finibus et purus ac, elementum pretium augue.');
-    $this->assertNodeSummaryTokenReplacement($node, $expected_trimmed_to_130);
+    $expected_trimmed_to_160 = Html::escape('<blink>Lorem ipsum</blink> dolor sit amet, consectetur adipiscing elit. '
+      . 'Morbi diam dui, finibus et purus ac, elementum pretium augue.');
+    $this->assertNodeSummaryTokenReplacement($node, $expected_trimmed_to_160);
 
     // Token [node:summary] should use trim settings of "Trimmed"
     // formatter of teaser view mode.
     $view_display->setComponent('body', [
       'type' => 'text_trimmed',
-      'settings' => ['trim_length' => 70],
+      'settings' => ['trim_length' => 80],
     ]);
     $view_display->save();
-    $expected_trimmed_to_70 = Html::escape('<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.');
-    $this->assertNodeSummaryTokenReplacement($node, $expected_trimmed_to_70);
+    $expected_trimmed_to_80 = Html::escape('<blink>Lorem ipsum</blink> dolor sit amet, consectetur adipiscing elit.');
+    $this->assertNodeSummaryTokenReplacement($node, $expected_trimmed_to_80);
 
     // Token [node:summary] should not pickup trim length setting of any other
     // formatter rather than "Summary or trimmed" or "Trimmed", even if setting
@@ -187,13 +189,13 @@
       'settings' => ['trim_length' => 42],
     ]);
     $view_display->save();
-    $expected_trimmed_to_600 = Html::escape('<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. '
-        . 'Morbi diam dui, finibus et purus ac, elementum pretium augue. Fusce lacus nisl, feugiat sit amet blandit sed, mattis eu ligula. '
-        . 'Duis laoreet dui non felis maximus fringilla. Maecenas tempor magna id urna dapibus, in elementum mauris consequat. '
-        . 'Praesent in urna non felis fringilla ullamcorper interdum eu risus. '
-        . 'Vestibulum id erat ultrices, varius est sed, dignissim dui. Vestibulum a dapibus nisl. '
-        . 'Maecenas vestibulum nibh a aliquet mollis. Donec ac justo eget justo interdum faucibus. '
-        . 'Aenean sit amet finibus turpis.');
+    $expected_trimmed_to_600 = Html::escape('<blink>Lorem ipsum</blink> dolor sit amet, consectetur adipiscing elit. '
+      . 'Morbi diam dui, finibus et purus ac, elementum pretium augue. Fusce lacus nisl, feugiat sit amet blandit sed, mattis eu ligula. '
+      . 'Duis laoreet dui non felis maximus fringilla. Maecenas tempor magna id urna dapibus, in elementum mauris consequat. '
+      . 'Praesent in urna non felis fringilla ullamcorper interdum eu risus. '
+      . 'Vestibulum id erat ultrices, varius est sed, dignissim dui. Vestibulum a dapibus nisl. '
+      . 'Maecenas vestibulum nibh a aliquet mollis. Donec ac justo eget justo interdum faucibus. '
+      . 'Aenean sit amet finibus turpis.');
     $this->assertNodeSummaryTokenReplacement($node, $expected_trimmed_to_600);
 
     // Token [node:summary] should not pickup trim length setting if teaser