diff --git a/src/services/ai_session_summary.py b/src/services/ai_session_summary.py
index 68dfedd..67d7745 100644
--- a/src/services/ai_session_summary.py
+++ b/src/services/ai_session_summary.py
@@ -41,6 +41,10 @@ Return only valid JSON, no other text."""
 
     try:
         text = response.content[0].text.strip()
+        # Strip markdown code block if model wraps response (e.g. ```json ... ```)
+        if text.startswith("```"):
+            text = text.split("\n", 1)[1] if "\n" in text else text
+            text = text.rsplit("```", 1)[0].strip()
         data = json.loads(text)
         ai_title = str(data.get("title", ""))[:200]
         ai_result = str(data.get("result", ""))