Update app.py

app.py

@@ -14,7 +14,7 @@ def respond(
     """
     For more information on `huggingface_hub` Inference API support, please check the docs: https://huggingface.co/docs/huggingface_hub/v0.22.2/en/guides/inference
     """
-    client = InferenceClient(token=hf_token.token, model="MAYA-AI/QWEN-3_5-CHAT")
+    client = InferenceClient(token=hf_token.token, model="perplexity-ai/pplx-embed-v1-0.6b")
 
     messages = [{"role": "system", "content": system_message}]