diff --git a/api/onnx_web/chain/base.py b/api/onnx_web/chain/base.py
index 84034fb8..02ad6c3a 100644
--- a/api/onnx_web/chain/base.py
+++ b/api/onnx_web/chain/base.py
@@ -18,7 +18,7 @@ class BaseStage:
         _stage: StageParams,
         _params: ImageParams,
         _sources: StageResult,
-        *args,
+        *,
         stage_source: Optional[Image.Image] = None,
         **kwargs,
     ) -> StageResult:
diff --git a/api/onnx_web/chain/blend_grid.py b/api/onnx_web/chain/blend_grid.py
index 5ca17151..34e4f535 100644
--- a/api/onnx_web/chain/blend_grid.py
+++ b/api/onnx_web/chain/blend_grid.py
@@ -1,5 +1,5 @@
 from logging import getLogger
-from typing import Optional
+from typing import List, Optional
 
 from PIL import Image
 
@@ -28,7 +28,7 @@ class BlendGridStage(BaseStage):
         # rows: Optional[List[str]] = None,
         # columns: Optional[List[str]] = None,
         # title: Optional[str] = None,
-        order: Optional[int] = None,
+        order: Optional[List[int]] = None,
         stage_source: Optional[Image.Image] = None,
         callback: Optional[ProgressCallback] = None,
         **kwargs,
diff --git a/api/onnx_web/chain/source_txt2img.py b/api/onnx_web/chain/source_txt2img.py
index 468ceecd..571e58ad 100644
--- a/api/onnx_web/chain/source_txt2img.py
+++ b/api/onnx_web/chain/source_txt2img.py
@@ -3,7 +3,6 @@ from typing import Optional, Tuple
 
 import numpy as np
 import torch
-from PIL import Image
 
 from ..constants import LATENT_FACTOR
 from ..diffusers.load import load_pipeline
@@ -41,7 +40,7 @@ class SourceTxt2ImgStage(BaseStage):
         latents: Optional[np.ndarray] = None,
         prompt_index: Optional[int] = None,
         **kwargs,
-    ) -> Image.Image:
+    ) -> StageResult:
         params = params.with_args(**kwargs)
         size = size.with_args(**kwargs)
 
diff --git a/api/onnx_web/chain/upscale_highres.py b/api/onnx_web/chain/upscale_highres.py
index bd7f826a..32f891a6 100644
--- a/api/onnx_web/chain/upscale_highres.py
+++ b/api/onnx_web/chain/upscale_highres.py
@@ -22,7 +22,7 @@ class UpscaleHighresStage(BaseStage):
         stage: StageParams,
         params: ImageParams,
         sources: StageResult,
-        *args,
+        *,
         highres: HighresParams,
         upscale: UpscaleParams,
         stage_source: Optional[Image.Image] = None,
diff --git a/api/onnx_web/convert/diffusion/diffusion.py b/api/onnx_web/convert/diffusion/diffusion.py
index 45762ffe..a8ecbbf7 100644
--- a/api/onnx_web/convert/diffusion/diffusion.py
+++ b/api/onnx_web/convert/diffusion/diffusion.py
@@ -103,7 +103,6 @@ def get_model_version(
             opts["prediction_type"] = "epsilon"
     except Exception:
         logger.debug("unable to load tensor for version check")
-        pass
 
     return (v2, opts)
 
diff --git a/api/onnx_web/convert/diffusion/lora.py b/api/onnx_web/convert/diffusion/lora.py
index f115942f..c4ed7fa8 100644
--- a/api/onnx_web/convert/diffusion/lora.py
+++ b/api/onnx_web/convert/diffusion/lora.py
@@ -76,7 +76,7 @@ def fix_xl_names(keys: Dict[str, Any], nodes: List[NodeProto]) -> Dict[str, Any]
     names = [fix_node_name(node.name) for node in nodes]
 
     for key, value in keys.items():
-        root, *rest = key.split(".")
+        root, *_rest = key.split(".")
         logger.trace("fixing XL node name: %s -> %s", key, root)
 
         simple = False
diff --git a/api/onnx_web/convert/utils.py b/api/onnx_web/convert/utils.py
index 61b6547f..b1babdd5 100644
--- a/api/onnx_web/convert/utils.py
+++ b/api/onnx_web/convert/utils.py
@@ -36,7 +36,7 @@ DEFAULT_OPSET = 14
 class ConversionContext(ServerContext):
     def __init__(
         self,
-        model_path: Optional[str] = None,
+        model_path: str = ".",
         cache_path: Optional[str] = None,
         device: Optional[str] = None,
         half: bool = False,
@@ -120,7 +120,7 @@ def download_progress(urls: List[Tuple[str, str]]):
 
 def tuple_to_source(model: Union[ModelDict, LegacyModel]):
     if isinstance(model, list) or isinstance(model, tuple):
-        name, source, *rest = model
+        name, source, *_rest = model
 
         return {
             "name": name,
diff --git a/api/onnx_web/diffusers/load.py b/api/onnx_web/diffusers/load.py
index 5088dc60..8d006f76 100644
--- a/api/onnx_web/diffusers/load.py
+++ b/api/onnx_web/diffusers/load.py
@@ -505,7 +505,7 @@ def load_unet(
 
 
 def load_vae(
-    server: ServerContext, device: DeviceParams, model: str, params: ImageParams
+    _server: ServerContext, device: DeviceParams, model: str, params: ImageParams
 ):
     # one or more VAE models need to be loaded
     vae = path.join(model, "vae", ONNX_MODEL)
diff --git a/api/onnx_web/diffusers/patches/unet.py b/api/onnx_web/diffusers/patches/unet.py
index 6e15597f..81065d97 100644
--- a/api/onnx_web/diffusers/patches/unet.py
+++ b/api/onnx_web/diffusers/patches/unet.py
@@ -28,9 +28,9 @@ class UNetWrapper(object):
 
     def __call__(
         self,
-        sample: np.ndarray = None,
-        timestep: np.ndarray = None,
-        encoder_hidden_states: np.ndarray = None,
+        sample: Optional[np.ndarray] = None,
+        timestep: Optional[np.ndarray] = None,
+        encoder_hidden_states: Optional[np.ndarray] = None,
         **kwargs,
     ):
         logger.trace(
diff --git a/api/onnx_web/models/meta.py b/api/onnx_web/models/meta.py
index fd8b1297..6aaa4e52 100644
--- a/api/onnx_web/models/meta.py
+++ b/api/onnx_web/models/meta.py
@@ -1,6 +1,6 @@
 from typing import List, Literal
 
-NetworkType = Literal["inversion", "lora"]
+NetworkType = Literal["control", "inversion", "lora"]
 
 
 class NetworkModel:
diff --git a/api/onnx_web/output.py b/api/onnx_web/output.py
index d64f79a0..ec76ce3d 100644
--- a/api/onnx_web/output.py
+++ b/api/onnx_web/output.py
@@ -57,7 +57,7 @@ def json_params(
     upscale: Optional[UpscaleParams] = None,
     border: Optional[Border] = None,
     highres: Optional[HighresParams] = None,
-    parent: Dict = None,
+    parent: Optional[Dict] = None,
 ) -> Any:
     json = {
         "input_size": size.tojson(),
diff --git a/api/onnx_web/server/load.py b/api/onnx_web/server/load.py
index 0444cc82..6bf1de2d 100644
--- a/api/onnx_web/server/load.py
+++ b/api/onnx_web/server/load.py
@@ -163,8 +163,8 @@ def load_extras(server: ServerContext):
     global extra_strings
     global extra_tokens
 
-    labels = {}
-    strings = {}
+    labels: Dict[str, str] = {}
+    strings: Dict[str, Any] = {}
 
     extra_schema = load_config("./schemas/extras.yaml")
 
@@ -415,7 +415,7 @@ def load_platforms(server: ServerContext) -> None:
         ):
             if potential == "cuda" or potential == "rocm":
                 for i in range(torch.cuda.device_count()):
-                    options = {
+                    options: Dict[str, Union[int, str]] = {
                         "device_id": i,
                     }
 
diff --git a/api/pyproject.toml b/api/pyproject.toml
index bb47f16d..5d69e906 100644
--- a/api/pyproject.toml
+++ b/api/pyproject.toml
@@ -71,6 +71,7 @@ module = [
     "realesrgan",
     "realesrgan.archs.srvgg_arch",
     "safetensors",
+    "scipy",
     "timm.models.layers",
     "transformers",
     "win10toast"
diff --git a/api/tests/test_diffusers/test_run.py b/api/tests/test_diffusers/test_run.py
index 261566e0..26578f3e 100644
--- a/api/tests/test_diffusers/test_run.py
+++ b/api/tests/test_diffusers/test_run.py
@@ -274,6 +274,7 @@ class TestInpaintPipeline(unittest.TestCase):
                 3.0,
                 1,
                 1,
+                unet_tile=64,
             ),
             Size(*source.size),
             ["test-inpaint-white.png"],
@@ -310,6 +311,7 @@ class TestInpaintPipeline(unittest.TestCase):
                 3.0,
                 1,
                 1,
+                unet_tile=64,
             ),
             Size(*source.size),
             ["test-inpaint-black.png"],