Update app.py

app.py

@@ -25,8 +25,8 @@ if not logger.handlers:
 app = FastAPI()
 
 # === Model Config ===
-REPO_ID = "TheBloke/TinyLlama-1.1B-Chat-v1.0-GGUF"
-FILENAME = "tinyllama-1.1b-chat-v1.0.Q4_K_M.gguf" # Q4_K_M is a good balance of size and quality
+REPO_ID = "TheBloke/Mistral-7B-Instruct-v0.2-GGUF"
+FILENAME = "mistral-7b-instruct-v0.2.Q4_K_M.gguf"
 MODEL_DIR = "models"
 MODEL_PATH = os.path.join(MODEL_DIR, FILENAME)