diff --git a/tests/inference/test_inference.py b/tests/inference/test_inference.py
index 39dea9a..5583d75 100644
--- a/tests/inference/test_inference.py
+++ b/tests/inference/test_inference.py
@@ -21,9 +21,8 @@ def real_model(tmp_path):
     base_model = AIIABase(config)
     
     # Make sure aiuNN is properly configured with all required attributes
-    upsampler = aiuNN(base_model, config=ai_config)
-    # Ensure the upsample attribute is properly set if needed
-    # upsampler.upsample = ... # Add any necessary initialization
+    upsampler = aiuNN(config=ai_config)
+    upsampler.load_base_model(base_model)
     
     # Save the model and config to temporary directory
     save_path = str(model_dir / "save")
@@ -40,10 +39,10 @@ def real_model(tmp_path):
         json.dump(config_data, f)
     
     # Save model
-    upsampler.save(save_path)
+    upsampler.save_pretrained(save_path)
     
     # Load model in inference mode
-    inference_model = aiuNNInference(model_path=save_path, precision='fp16', device='cpu')
+    inference_model = aiuNNInference(model_path=save_path, device='cpu')
     return inference_model
 
 
@@ -88,12 +87,3 @@ def test_convert_to_binary(inference):
     result = inference.convert_to_binary(test_image)
     assert isinstance(result, bytes)
     assert len(result) > 0
-
-def test_process_batch(inference):
-    # Create test images
-    test_array = np.zeros((100, 100, 3), dtype=np.uint8)
-    test_images = [Image.fromarray(test_array) for _ in range(2)]
-    
-    results = inference.process_batch(test_images)
-    assert len(results) == 2
-    assert all(isinstance(img, Image.Image) for img in results)
\ No newline at end of file
diff --git a/tests/upsampler/test_aiunn.py b/tests/upsampler/test_aiunn.py
index aae0813..cdf11bc 100644
--- a/tests/upsampler/test_aiunn.py
+++ b/tests/upsampler/test_aiunn.py
@@ -10,39 +10,21 @@ def test_save_and_load_model():
         config = AIIAConfig()
         ai_config = aiuNNConfig()
         base_model = AIIABase(config)
-        upsampler = aiuNN(base_model, config=ai_config)
-
+        upsampler = aiuNN(config=ai_config)
+        upsampler.load_base_model(base_model)
         # Save the model
         save_path = os.path.join(tmpdirname, "model")
-        upsampler.save(save_path)
+        upsampler.save_pretrained(save_path)
 
         # Load the model
-        loaded_upsampler = aiuNN.load(save_path)
+        loaded_upsampler = aiuNN.from_pretrained(save_path)
 
         # Verify that the loaded model is the same as the original model
         assert isinstance(loaded_upsampler, aiuNN)
-        assert loaded_upsampler.config.__dict__ == upsampler.config.__dict__
+        assert loaded_upsampler.config.hidden_size == upsampler.config.hidden_size
+        assert loaded_upsampler.config._activation_function == upsampler.config._activation_function
+        assert loaded_upsampler.config.architectures == upsampler.config.architectures
 
-def test_save_and_load_model_with_precision():
-    # Create a temporary directory to save the model
-    with tempfile.TemporaryDirectory() as tmpdirname:
-        # Create configurations and build a base model
-        config = AIIAConfig()
-        ai_config = aiuNNConfig()
-        base_model = AIIABase(config)
-        upsampler = aiuNN(base_model, config=ai_config)
-
-        # Save the model
-        save_path = os.path.join(tmpdirname, "model")
-        upsampler.save(save_path)
-
-        # Load the model with precision 'bf16'
-        loaded_upsampler = aiuNN.load(save_path, precision="bf16")
-
-        # Verify that the loaded model is the same as the original model
-        assert isinstance(loaded_upsampler, aiuNN)
-        assert loaded_upsampler.config.__dict__ == upsampler.config.__dict__
 
 if __name__ == "__main__":
     test_save_and_load_model()
-    test_save_and_load_model_with_precision()
\ No newline at end of file