Update model_api.py

model_api.py

@@ -4,22 +4,18 @@ import os
 def query_model(prompt):
     try:
         HF_TOKEN = os.getenv("HF_TOKEN")
-
         client = InferenceClient(
-            model="Qwen/Qwen2.5-7B-Instruct",
+            model="mistralai/Mistral-7B-Instruct-v0.2",
             token=HF_TOKEN
         )
-
         response = client.chat_completion(
             messages=[
-                {"role": "system", "content": "You are a certified professional fitness trainer."},
+                {"role": "system", "content": "You are a professional fitness trainer."},
                 {"role": "user", "content": prompt}
             ],
             max_tokens=1500,
             temperature=0.7
         )
-
         return response.choices[0].message.content
-
     except Exception as e:
         return f"Error: {str(e)}"