Update app.py

app.py

@@ -1,52 +1,50 @@
 import gradio as gr
 import requests
 
+API_URL = "https://openrouter.ai/api/v1/chat/completions"
+
 def generate_cover_letter(resume, job_desc):
     prompt = f"""
-You are a career coach. Write a tailored, ATS-optimized, professional cover letter based on the resume and job description below.
+You are a career expert. Write a personalized, ATS-friendly cover letter for this resume and job description.
 
 Resume:
 {resume}
 
 Job Description:
 {job_desc}
-
-The letter should be concise, engaging, and show why the candidate is a good fit.
 """
+    
+    headers = {
+        "Content-Type": "application/json"
+        # No API key required for free models
+    }
+
+    data = {
+        "model": "meta-llama/llama-4-maverick:free",
+        "messages": [
+            {"role": "user", "content": prompt}
+        ]
+    }
 
     try:
-        response = requests.post(
-            "https://piapi.ai/api/deepseek",
-            headers={"Content-Type": "application/json"},
-            json={
-                "prompt": prompt,
-                "system": "You are a helpful assistant.",
-                "temperature": 0.8
-            },
-            timeout=20  # prevent hanging
-        )
-
-        # Check if the response body is valid JSON
+        response = requests.post(API_URL, headers=headers, json=data)
         if response.status_code == 200:
-            try:
-                data = response.json()
-                return data.get("response", "⚠️ API responded but didn't return any text.")
-            except Exception as e:
-                return f"❌ JSON decode failed — maybe HTML or empty: {str(e)}\nRaw response:\n{response.text}"
+            return response.json()["choices"][0]["message"]["content"]
         else:
-            return f"❌ API returned error code {response.status_code}:\n{response.text}"
-
-    except requests.exceptions.RequestException as e:
-        return f"❌ Request failed:\n{str(e)}"
+            return f"❌ API Error {response.status_code}: {response.text}"
+    except Exception as e:
+        return f"❌ Failed to connect to OpenRouter: {str(e)}"
 
 # Gradio UI
-gr.Interface(
+demo = gr.Interface(
     fn=generate_cover_letter,
     inputs=[
-        gr.Textbox(label="Paste Your Resume", lines=12, placeholder="Paste your resume here..."),
-        gr.Textbox(label="Paste Job Description", lines=10, placeholder="Paste the job description here...")
+        gr.Textbox(lines=12, label="Paste Your Resume"),
+        gr.Textbox(lines=10, label="Paste Job Description")
     ],
     outputs=gr.Textbox(label="Generated Cover Letter"),
-    title="AI Cover Letter Generator (DeepSeek LLM)",
-    description="Paste your resume and job description. Click 'Submit' to generate a personalized, professional cover letter using DeepSeek via PiAPI (no key needed)."
-).launch()
+    title="AI Cover Letter Generator",
+    description="No API key needed — powered by LLaMA 4 Maverick (free via OpenRouter). Just paste your resume and job description to get a tailored cover letter."
+)
+
+demo.launch()