diff --git a/python/conf/sys.cnf b/python/conf/sys.cnf
index adff7ccf2..50a47a430 100755
--- a/python/conf/sys.cnf
+++ b/python/conf/sys.cnf
@@ -1,10 +1,9 @@
 [infiniflow]
 es=http://es01:9200
-pgdb_usr=root
-pgdb_pwd=infiniflow_docgpt
-pgdb_host=postgres
-pgdb_port=5432
+postgres_user=root
+postgres_password=infiniflow_docgpt
+postgres_host=postgres
+postgres_port=5432
 minio_host=minio:9000
-minio_usr=infiniflow
-minio_pwd=infiniflow_docgpt
-
+minio_user=infiniflow
+minio_password=infiniflow_docgpt
diff --git a/python/llm/chat_model.py b/python/llm/chat_model.py
index 34fb7d18d..16836fac9 100644
--- a/python/llm/chat_model.py
+++ b/python/llm/chat_model.py
@@ -25,9 +25,10 @@ class QWen(Base):
         from dashscope import Generation
         from dashscope.api_entities.dashscope_response import Role
         # export DASHSCOPE_API_KEY=YOUR_DASHSCOPE_API_KEY
+        history.insert(0, {"role": "system", "content": system})
         response = Generation.call(
                     Generation.Models.qwen_turbo,
-                    messages=messages,
+                    messages=history,
                     result_format='message'
         )
         if response.status_code == HTTPStatus.OK:
diff --git a/python/llm/cv_model.py b/python/llm/cv_model.py
new file mode 100644
index 000000000..30c096eb1
--- /dev/null
+++ b/python/llm/cv_model.py
@@ -0,0 +1,70 @@
+from abc import ABC
+from openai import OpenAI
+import os
+import base64
+from io import BytesIO
+
+class Base(ABC):
+    def describe(self, image, max_tokens=300):
+        raise NotImplementedError("Please implement encode method!")
+
+    def image2base64(self, image):
+        if isinstance(image, BytesIO):
+            return base64.b64encode(image.getvalue()).decode("utf-8")
+        buffered = BytesIO()
+        try:
+            image.save(buffered, format="JPEG")
+        except Exception as e:
+            image.save(buffered, format="PNG")
+        return base64.b64encode(buffered.getvalue()).decode("utf-8")
+
+
+    def prompt(self, b64):
+        return [
+              {
+                "role": "user",
+                "content": [
+                  {
+                    "type": "text",
+                    "text": "请用中文详细描述一下图中的内容，比如时间，地点，人物，事情，人物心情等。",
+                  },
+                  {
+                    "type": "image_url",
+                    "image_url": {
+                      "url": f"data:image/jpeg;base64,{b64}"
+                    },
+                  },
+                ],
+              }
+            ]
+
+
+class GptV4(Base):
+    def __init__(self):
+        import openapi
+        openapi.api_key = os.environ["OPENAPI_KEY"]
+        self.client = OpenAI()
+
+    def describe(self, image, max_tokens=300):
+        b64 = self.image2base64(image)
+
+        res = self.client.chat.completions.create(
+            model="gpt-4-vision-preview",
+            messages=self.prompt(b64),
+            max_tokens=max_tokens,
+        )
+        return res.choices[0].message.content.strip()
+
+
+class QWen(Base):
+    def describe(self, image, max_tokens=300):
+        from http import HTTPStatus
+        from dashscope import MultiModalConversation1`
+        # export DASHSCOPE_API_KEY=YOUR_DASHSCOPE_API_KEY
+        response = MultiModalConversation.call(model=MultiModalConversation.Models.qwen_vl_chat_v1,
+                                           messages=self.prompt(self.image2base64(image)))
+        )
+        if response.status_code == HTTPStatus.OK:
+            return response.output.choices[0]['message']['content']
+        return response.message
+
diff --git a/python/llm/embedding_model.py b/python/llm/embedding_model.py
index 98a483275..894316550 100644
--- a/python/llm/embedding_model.py
+++ b/python/llm/embedding_model.py
@@ -30,3 +30,32 @@ class HuEmbedding(Base):
         for i in range(0, len(texts), batch_size):
             res.extend(self.model.encode(texts[i:i+batch_size]).tolist())
         return np.array(res)
+
+
+
+class GptEmbed(Base):
+    def __init__(self):
+        import openapi,os
+        from openai import OpenAI
+        openapi.api_key = os.environ["OPENAPI_KEY"]
+        self.client = OpenAI()
+
+    def encode(self, texts: list, batch_size=32):
+        res = self.client.embeddings.create(input = texts,
+                                            model="text-embedding-ada-002")
+        return [d["embedding"] for d in res["data"]]
+
+
+class QWen(base):
+    def encode(self, texts: list, batch_size=32, text_type="document"):
+        import dashscope
+        from http import HTTPStatus
+        res = []
+        for txt in texts:
+            resp = dashscope.TextEmbedding.call(
+                model=dashscope.TextEmbedding.Models.text_embedding_v2,
+                input=txt[:2048],
+                text_type=text_type
+            )
+            res.append(resp["output"]["embeddings"][0]["embedding"])
+        return res
diff --git a/python/util/db_conn.py b/python/util/db_conn.py
index 4af9168af..9f617face 100644
--- a/python/util/db_conn.py
+++ b/python/util/db_conn.py
@@ -19,7 +19,11 @@ class Postgres(object):
             pass
 
         try:
-            self.conn = psycopg2.connect(f"dbname={self.dbnm} user={self.config.get('pgdb_usr')} password={self.config.get('pgdb_pwd')} host={self.config.get('pgdb_host')} port={self.config.get('pgdb_port')}")
+            self.conn = psycopg2.connect(f"""dbname={self.dbnm}
+                                         user={self.config.get('postgres_user')}
+                                         password={self.config.get('postgres_password')}
+                                         host={self.config.get('postgres_host')}
+                                         port={self.config.get('postgres_port')}""")
         except Exception as e:
             logging.error("Fail to connect %s "%self.config.get("pgdb_host") + str(e))
 
diff --git a/python/util/minio_conn.py b/python/util/minio_conn.py
index 05875ac51..dfa8ce500 100644
--- a/python/util/minio_conn.py
+++ b/python/util/minio_conn.py
@@ -18,8 +18,8 @@ class HuMinio(object):
 
         try:
             self.conn = Minio(self.config.get("minio_host"),
-                              access_key=self.config.get("minio_usr"),
-                              secret_key=self.config.get("minio_pwd"),
+                              access_key=self.config.get("minio_user"),
+                              secret_key=self.config.get("minio_password"),
                               secure=False
                              )
         except Exception as e: