Update app.py

app.py

@@ -342,7 +342,7 @@ def start_training(
 
         
         cmd = f"autotrain spacerunner --project-name {slugged_lora_name} --script-path {dataset_folder}"
-        cmd += f" --username {profile.username} --token {hf_token} --backend spaces-l4x1"
+        cmd += f" --username {profile.username} --token {hf_token} --backend spaces-t4s"
         outcome = subprocess.run(cmd.split(), capture_output=True, text=True)
         
         if outcome.returncode == 0 or "You already created this space repo" in (outcome.stdout + outcome.stderr):