diff --git a/backend/llm.py b/backend/llm.py
index e4aeb2d..c111beb 100644
--- a/backend/llm.py
+++ b/backend/llm.py
@@ -81,7 +81,7 @@ async def call_ollama(prompt: str, *, tag: str = "default", temperature: float =
             },
         }
         if thinking:
-            kwargs["thinking"] = thinking
+            kwargs["think"] = thinking
 
         response = await client.chat(**kwargs)
     except Exception:
@@ -117,7 +117,7 @@ async def call_ollama(prompt: str, *, tag: str = "default", temperature: float =
     if not content.strip():
         logger.warning("[LLM][%s] empty content returned by model", tag)
 
-    return {"content": content, "thinking": thinking}
+    return {"content": content, "think": thinking}
 
 async def call_vlm_ocr(image_bytes: bytes, language: str = 'auto') -> str:
     start = time.perf_counter()
diff --git a/src/utils/config.js b/src/utils/config.js
index b3bb2aa..0e7612a 100644
--- a/src/utils/config.js
+++ b/src/utils/config.js
@@ -1,6 +1,6 @@
 export const DEBUG = import.meta.env.DEV
 
-const API_BASE_URL = import.meta.env.VITE_API_BASE_URL || 'https://api.learnteach.tech:8002'
+const API_BASE_URL = import.meta.env.VITE_API_BASE_URL || 'http://149.104.29.239:8001'
 
 export const API_URL = import.meta.env.VITE_API_URL || `${API_BASE_URL}/v1/completions`
 export const OCR_URL = import.meta.env.VITE_OCR_URL || `${API_BASE_URL}/v1/ocr`