diff --git a/src/blackbox/blackbox_sentiment.py b/src/blackbox/blackbox_sentiment.py
new file mode 100644
index 0000000..0eb3103
--- /dev/null
+++ b/src/blackbox/blackbox_sentiment.py
@@ -0,0 +1,48 @@
+from typing import Any, Coroutine
+
+from fastapi import Request, Response, status
+from fastapi.responses import JSONResponse
+
+from .blackbox import Blackbox
+from lagent.llms.lmdepoly_wrapper import LMDeployClient
+from lagent.llms.meta_template import INTERNLM2_META as META
+
+class Sentiment(Blackbox):
+
+    def __init__(self, model_name, model_url) -> None:
+        self.model = LMDeployClient(
+            model_name=model_name,
+            url=model_url,
+            meta_template=META,
+            top_p=0.8,
+            top_k=100,
+            temperature=0,
+            repetition_penalty=1.0,
+            stop_words=['<|im_end|>'])
+
+    def __call__(self, *args, **kwargs):
+        return self.processing(*args, **kwargs)
+
+    def valid(self,  *args, **kwargs) -> bool:
+        data = args[0]
+        return isinstance(data, str)
+    
+    def processing(self, *args, **kwargs) -> int:
+        text = args[0]
+        text = "Please use one word to infer the emotion of the following passage:\n" + text + "\nJust print out that signle word pls."
+        text = [{'role': 'user', 'content': text}]
+        return self.model.stream_chat(text)
+    
+    async def fast_api_handler(self, request) -> Response:
+        try:
+            data = await request.json()
+        except:
+            return JSONResponse(content={"error": "json parse error"}, status_code=status.HTTP_400_BAD_REQUEST)
+        text = data.get("text")
+        if text is None:
+            return JSONResponse(content={"error": "text is required"}, status_code=status.HTTP_400_BAD_REQUEST)
+        text = "Please use one word to infer the emotion of the following passage:\n" + text + "\nJust print out that signle word pls."
+        text = [{'role': 'user', 'content': text}]
+        sentiment = self.processing(text)
+        return JSONResponse(content={"sentiment": sentiment }, status_code=status.HTTP_200_OK)
+    
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