diff --git a/src/decomon/layers/crown.py b/src/decomon/layers/crown.py
index 0210b077..142023bb 100644
--- a/src/decomon/layers/crown.py
+++ b/src/decomon/layers/crown.py
@@ -38,6 +38,15 @@ def __init__(
         super().__init__(**kwargs)
         self.model_output_shape = model_output_shape
 
+    def get_config(self) -> dict[str, Any]:
+        config = super().get_config()
+        config.update(
+            {
+                "model_output_shape": self.model_output_shape,
+            }
+        )
+        return config
+
     def call(self, inputs: list[list[BackendTensor]]) -> list[BackendTensor]:
         """Reduce the list of crown bounds to a single one by summation.
 
diff --git a/src/decomon/layers/fuse.py b/src/decomon/layers/fuse.py
index 6e5f8351..f9447f09 100644
--- a/src/decomon/layers/fuse.py
+++ b/src/decomon/layers/fuse.py
@@ -99,6 +99,21 @@ def __init__(
             for m2_input_shape in m_1_output_shapes
         ]
 
+    def get_config(self) -> dict[str, Any]:
+        config = super().get_config()
+        config.update(
+            {
+                "ibp_1": self.ibp_1,
+                "affine_1": self.affine_1,
+                "ibp_2": self.ibp_2,
+                "affine_2": self.affine_2,
+                "m1_input_shape": self.m1_input_shape,
+                "m_1_output_shapes": self.m_1_output_shapes,
+                "from_linear_2": self.from_linear_2,
+            }
+        )
+        return config
+
     def build(self, input_shape: tuple[list[tuple[Optional[int], ...]], list[tuple[Optional[int], ...]]]) -> None:
         input_shape_1, input_shape_2 = input_shape
 
diff --git a/src/decomon/layers/input.py b/src/decomon/layers/input.py
index 560b0eae..607f8fc2 100644
--- a/src/decomon/layers/input.py
+++ b/src/decomon/layers/input.py
@@ -6,6 +6,7 @@
 import keras
 import keras.ops as K
 from keras.layers import Layer
+from keras.utils import serialize_keras_object
 
 from decomon.constants import Propagation
 from decomon.layers.inputs_outputs_specs import InputsOutputsSpec
@@ -44,6 +45,17 @@ def __init__(
             layer_input_shape=tuple(),
         )
 
+    def get_config(self) -> dict[str, Any]:
+        config = super().get_config()
+        config.update(
+            {
+                "ibp": self.ibp,
+                "affine": self.affine,
+                "perturbation_domain": serialize_keras_object(self.perturbation_domain),
+            }
+        )
+        return config
+
     def call(self, inputs: BackendTensor) -> list[BackendTensor]:
         """Generate ibp and affine bounds to propagate by the first forward layer.
 
@@ -124,6 +136,15 @@ def __init__(
 
         self.perturbation_domain = perturbation_domain
 
+    def get_config(self) -> dict[str, Any]:
+        config = super().get_config()
+        config.update(
+            {
+                "perturbation_domain": serialize_keras_object(self.perturbation_domain),
+            }
+        )
+        return config
+
     def call(self, inputs: BackendTensor) -> list[BackendTensor]:
         """Generate ibp and affine bounds to propagate by the first forward layer.
 
@@ -197,6 +218,16 @@ def __init__(
         self.nb_model_outputs = len(model_output_shapes)
         self.from_linear = from_linear
 
+    def get_config(self) -> dict[str, Any]:
+        config = super().get_config()
+        config.update(
+            {
+                "model_output_shapes": self.model_output_shapes,
+                "from_linear": self.from_linear,
+            }
+        )
+        return config
+
     def build(self, input_shape: list[tuple[Optional[int], ...]]) -> None:
         # list of tensors
         if len(input_shape) == 1:
diff --git a/src/decomon/layers/layer.py b/src/decomon/layers/layer.py
index 9a362815..a37a504b 100644
--- a/src/decomon/layers/layer.py
+++ b/src/decomon/layers/layer.py
@@ -4,6 +4,7 @@
 import keras
 import keras.ops as K
 from keras.layers import Layer, Wrapper
+from keras.utils import serialize_keras_object
 
 from decomon.constants import Propagation
 from decomon.layers.fuse import (
@@ -184,9 +185,10 @@ def get_config(self) -> dict[str, Any]:
             {
                 "ibp": self.ibp,
                 "affine": self.affine,
-                "perturbation_domain": self.perturbation_domain,
+                "perturbation_domain": serialize_keras_object(self.perturbation_domain),
                 "propagation": self.propagation,
-                "model_output_shape_length": self.model_output_shape_length,
+                "model_input_shape": self.model_input_shape,
+                "model_output_shape": self.model_output_shape,
             }
         )
         return config
diff --git a/src/decomon/layers/oracle.py b/src/decomon/layers/oracle.py
index 54d4e0e4..773048ca 100644
--- a/src/decomon/layers/oracle.py
+++ b/src/decomon/layers/oracle.py
@@ -4,6 +4,7 @@
 from typing import Any, Optional, Union, overload
 
 from keras.layers import Layer
+from keras.utils import serialize_keras_object
 
 from decomon.layers.inputs_outputs_specs import InputsOutputsSpec
 from decomon.perturbation_domain import PerturbationDomain
@@ -68,6 +69,19 @@ def __init__(
             is_merging_layer=is_merging_layer,
         )
 
+    def get_config(self) -> dict[str, Any]:
+        config = super().get_config()
+        config.update(
+            {
+                "ibp": self.ibp,
+                "affine": self.affine,
+                "perturbation_domain": serialize_keras_object(self.perturbation_domain),
+                "layer_input_shape": self.layer_input_shape,
+                "is_merging_layer": self.is_merging_layer,
+            }
+        )
+        return config
+
     def call(self, inputs: list[BackendTensor]) -> Union[list[BackendTensor], list[list[BackendTensor]]]:
         """Deduce  ibp and affine bounds to propagate by the first forward layer.
 
diff --git a/src/decomon/layers/output.py b/src/decomon/layers/output.py
index c6d622ec..398f5f07 100644
--- a/src/decomon/layers/output.py
+++ b/src/decomon/layers/output.py
@@ -5,6 +5,7 @@
 
 import keras.ops as K
 from keras.layers import Layer
+from keras.utils import serialize_keras_object
 
 from decomon.layers.inputs_outputs_specs import InputsOutputsSpec
 from decomon.layers.oracle import get_forward_oracle
@@ -53,6 +54,20 @@ def __init__(
             model_output_shapes=model_output_shapes,
         )
 
+    def get_config(self) -> dict[str, Any]:
+        config = super().get_config()
+        config.update(
+            {
+                "ibp_from": self.ibp_from,
+                "affine_from": self.affine_from,
+                "ibp_to": self.ibp_to,
+                "affine_to": self.affine_to,
+                "model_output_shapes": self.model_output_shapes,
+                "perturbation_domain": serialize_keras_object(self.perturbation_domain),
+            }
+        )
+        return config
+
     def needs_perturbation_domain_inputs(self) -> bool:
         return self.inputs_outputs_spec.needs_perturbation_domain_inputs()
 
diff --git a/src/decomon/models/models.py b/src/decomon/models/models.py
index 6fff46ee..1db6e729 100644
--- a/src/decomon/models/models.py
+++ b/src/decomon/models/models.py
@@ -79,13 +79,10 @@ def get_config(self) -> dict[str, Any]:
             dict(
                 name=self.name,
                 perturbation_domain=serialize_keras_object(self.perturbation_domain),
-                dc_decomp=self.dc_decomp,
                 method=self.method,
                 ibp=self.ibp,
                 affine=self.affine,
-                finetune=self.finetune,
-                shared=self.shared,
-                backward_bounds=self.backward_bounds,
+                model=serialize_keras_object(self.model),
             )
         )
         return config