Update app.py

app.py

@@ -1,70 +1,52 @@
+import os
 import gradio as gr
-from huggingface_hub import InferenceClient
-
-
-def respond(
-    message,
-    history: list[dict[str, str]],
-    system_message,
-    max_tokens,
-    temperature,
-    top_p,
-    hf_token: gr.OAuthToken,
-):
-    """
-    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="openai/gpt-oss-20b")
-
-    messages = [{"role": "system", "content": system_message}]
-
-    messages.extend(history)
-
-    messages.append({"role": "user", "content": message})
-
-    response = ""
-
-    for message in client.chat_completion(
-        messages,
-        max_tokens=max_tokens,
-        stream=True,
-        temperature=temperature,
-        top_p=top_p,
-    ):
-        choices = message.choices
-        token = ""
-        if len(choices) and choices[0].delta.content:
-            token = choices[0].delta.content
-
-        response += token
-        yield response
-
-
-"""
-For information on how to customize the ChatInterface, peruse the gradio docs: https://www.gradio.app/docs/chatinterface
+from langchain_groq import ChatGroq
+from langchain_core.prompts import ChatPromptTemplate
+
+# -------------------------------
+# SYSTEM PROMPT
+# -------------------------------
+ai_subhash = """
+You are Subhash AI, a smart and friendly AI Mentor for engineering students.
+Explain concepts clearly and step by step in simple words.
+
+Be friendly, motivating, and patient.
+After every explanation, ask a small follow-up question.
 """
-chatbot = gr.ChatInterface(
-    respond,
-    type="messages",
-    additional_inputs=[
-        gr.Textbox(value="You are a friendly Chatbot.", label="System message"),
-        gr.Slider(minimum=1, maximum=2048, value=512, step=1, label="Max new tokens"),
-        gr.Slider(minimum=0.1, maximum=4.0, value=0.7, step=0.1, label="Temperature"),
-        gr.Slider(
-            minimum=0.1,
-            maximum=1.0,
-            value=0.95,
-            step=0.05,
-            label="Top-p (nucleus sampling)",
-        ),
-    ],
-)
-
-with gr.Blocks() as demo:
-    with gr.Sidebar():
-        gr.LoginButton()
-    chatbot.render()
 
+# -------------------------------
+# LOAD API KEY
+# -------------------------------
+GROQ_API_KEY = os.getenv("GROQ_API_KEY")
+
+# -------------------------------
+# CREATE MODEL
+# -------------------------------
+llm = ChatGroq(
+    model_name="openai/gpt-oss-120b",
+    temperature=0.7,
+    groq_api_key=GROQ_API_KEY
+)
 
-if __name__ == "__main__":
-    demo.launch()
+prompt = ChatPromptTemplate.from_messages([
+    ("system", ai_subhash),
+    ("human", "{user_input}")
+])
+
+chain = prompt | llm
+
+# -------------------------------
+# CHAT FUNCTION
+# -------------------------------
+def predict(message, history):
+    response = chain.invoke({"user_input": message})
+    return response.content
+
+# -------------------------------
+# UI
+# -------------------------------
+gr.ChatInterface(
+    fn=predict,
+    title="Subhash AI – Engineering Mentor",
+    description="Ask questions about CS, coding, exams, and projects."
+).launch()