diff --git a/sonar/models/mutox/classifier.py b/sonar/models/mutox/classifier.py
index 524a386..9fcdb3a 100644
--- a/sonar/models/mutox/classifier.py
+++ b/sonar/models/mutox/classifier.py
@@ -8,7 +8,7 @@
 from typing import Optional
 
 import torch
-from fairseq2.models.utils.arch_registry import ArchitectureRegistry
+from fairseq2.config_registry import ConfigRegistry
 from fairseq2.typing import DataType, Device
 from torch import nn
 
@@ -38,4 +38,4 @@ class MutoxConfig:
     input_size: int
 
 
-mutox_archs = ArchitectureRegistry[MutoxConfig]("mutox_classifier")
+mutox_archs = ConfigRegistry[MutoxConfig]()
diff --git a/sonar/models/mutox/loader.py b/sonar/models/mutox/loader.py
index 20d764d..b6ce64a 100644
--- a/sonar/models/mutox/loader.py
+++ b/sonar/models/mutox/loader.py
@@ -4,10 +4,10 @@
 # This source code is licensed under the license found in the
 # MIT_LICENSE file in the root directory of this source tree.
 
-import typing as tp
+from typing import Any, Dict
 
-from fairseq2.assets import asset_store, download_manager
-from fairseq2.models.utils import ConfigLoader, ModelLoader
+from fairseq2.models.config_loader import StandardModelConfigLoader
+from fairseq2.models.loader import StandardModelLoader, load_model
 
 from .builder import create_mutox_model
 from .classifier import MutoxClassifier, MutoxConfig, mutox_archs
@@ -23,8 +23,8 @@ def _base_mutox() -> MutoxConfig:
 
 
 def convert_mutox_checkpoint(
-    checkpoint: tp.Mapping[str, tp.Any], config: MutoxConfig
-) -> tp.Mapping[str, tp.Any]:
+    checkpoint: Dict[str, Any], config: MutoxConfig
+) -> Dict[str, Any]:
     new_dict = {}
     for key in checkpoint:
         if key.startswith("model_all."):
@@ -32,13 +32,13 @@ def convert_mutox_checkpoint(
     return {"model": new_dict}
 
 
-load_mutox_config = ConfigLoader[MutoxConfig](asset_store, mutox_archs)
+load_mutox_config = StandardModelConfigLoader(family="mutox", config_kls=MutoxConfig, arch_configs=mutox_archs)
 
-
-load_mutox_model = ModelLoader[MutoxClassifier, MutoxConfig](
-    asset_store,
-    download_manager,
-    load_mutox_config,
-    create_mutox_model,
-    convert_mutox_checkpoint,
+load_mutox_model = StandardModelLoader(
+    config_loader=load_mutox_config,
+    factory=create_mutox_model,
+    checkpoint_converter=convert_mutox_checkpoint,
+    restrict_checkpoints=False,
 )
+
+load_model.register("mutox_classifier", load_mutox_model)