diff --git a/backend/server.js b/backend/server.js
index 9886926..5ffbbfb 100644
--- a/backend/server.js
+++ b/backend/server.js
@@ -4329,8 +4329,16 @@ function sanitizeAIComment(text) {
     return '';
   }
 
+  let cleaned = text
+    .replace(/[\u200b-\u200f\u202a-\u202e\ufeff]/g, '') // strip zero-width/control spacing
+    .replace(/\u00a0/g, ' '); // normalize NBSP
+
+  // Strip leading label noise some models prepend (e.g. "**Kommentar**, **Inhalt**:")
+  const markerPattern = /^(?:\s*(?:\*\*|__)?\s*(kommentar|inhalt|text|content)\s*(?:\*\*|__)?\s*[,;:.\-–—`'"]*\s*)+/i;
+  cleaned = cleaned.replace(markerPattern, '');
+
   // Clean up AI output: drop hidden tags, replace dashes, normalize spacing.
-  return text
+  return cleaned
     .replace(/<think>[\s\S]*?<\/think>/gi, '')
     .replace(/[-–—]+/g, (match, offset, full) => {
       const prev = full[offset - 1];
@@ -4339,6 +4347,7 @@ function sanitizeAIComment(text) {
       const nextIsWord = next && /[A-Za-z0-9ÄÖÜäöüß]/.test(next);
       return prevIsWord && nextIsWord ? match : ', ';
     })
+    .replace(/^[\s,;:.\-–—!?\u00a0"'`]+/, '')
     .replace(/\s{2,}/g, ' ')
     .trim();
 }