diff --git a/api/onnx_web/serve.py b/api/onnx_web/serve.py
index e558ca61..9f46400f 100644
--- a/api/onnx_web/serve.py
+++ b/api/onnx_web/serve.py
@@ -16,6 +16,8 @@ from diffusers import (
     OnnxStableDiffusionPipeline,
     OnnxStableDiffusionImg2ImgPipeline,
     OnnxStableDiffusionInpaintPipeline,
+    # types
+    DiffusionPipeline,
 )
 from flask import Flask, jsonify, request, send_from_directory, url_for
 from hashlib import sha256
@@ -79,15 +81,15 @@ pipeline_schedulers = {
 }
 
 
-def get_and_clamp_float(args, key: str, default_value: float, max_value: float, min_value=0.0):
+def get_and_clamp_float(args, key: str, default_value: float, max_value: float, min_value=0.0) -> float:
     return min(max(float(args.get(key, default_value)), min_value), max_value)
 
 
-def get_and_clamp_int(args, key: str, default_value: int, max_value: int, min_value=1):
+def get_and_clamp_int(args, key: str, default_value: int, max_value: int, min_value=1) -> int:
     return min(max(int(args.get(key, default_value)), min_value), max_value)
 
 
-def get_from_map(args, key: str, values, default):
+def get_from_map(args, key: str, values: dict[str, Any], default: Any):
     selected = args.get(key, default)
     if selected in values:
         return values[selected]
@@ -109,7 +111,7 @@ def get_latents_from_seed(seed: int, width: int, height: int) -> np.ndarray:
     return image_latents
 
 
-def load_pipeline(pipeline, model: str, provider: str, scheduler):
+def load_pipeline(pipeline: DiffusionPipeline, model: str, provider: str, scheduler):
     global last_pipeline_instance
     global last_pipeline_scheduler
     global last_pipeline_options
@@ -146,7 +148,7 @@ def json_with_cors(data, origin='*'):
     return res
 
 
-def make_output_path(type: str, params: Tuple[Union[str, int, float]]):
+def make_output_path(type: str, seed: int, params: Tuple[Union[str, int, float]]):
     sha = sha256()
     sha.update(type.encode('utf-8'))
     for param in params:
@@ -159,7 +161,7 @@ def make_output_path(type: str, params: Tuple[Union[str, int, float]]):
         else:
             print('cannot hash param: %s, %s' % (param, type(param)))
 
-    output_file = '%s_%s.png' % (type, sha.hexdigest())
+    output_file = '%s_%s_%s.png' % (type, seed, sha.hexdigest())
     output_full = safer_join(output_path, output_file)
 
     return (output_file, output_full)
@@ -238,7 +240,7 @@ def list_schedulers():
     return json_with_cors(list(pipeline_schedulers.keys()))
 
 
-def pipeline_from_request(pipeline):
+def pipeline_from_request(pipeline: DiffusionPipeline):
     user = request.remote_addr
 
     # pipeline stuff
@@ -250,12 +252,13 @@ def pipeline_from_request(pipeline):
 
     # image params
     prompt = request.args.get('prompt', default_prompt)
-    negative_prompt = request.args.get('negative', None);
+    negative_prompt = request.args.get('negative', None)
 
-    cfg = get_and_clamp_int(request.args, 'cfg', default_cfg, max_cfg, 0)
-    steps = get_and_clamp_int(request.args, 'steps', default_steps, max_steps)
-    height = get_and_clamp_int(request.args, 'height', default_height, max_height)
-    width = get_and_clamp_int(request.args, 'width', default_width, max_width)
+    cfg = get_and_clamp_int(request.args, 'cfg', default_cfg, config_params.get('cfg').get('max'), 0)
+    steps = get_and_clamp_int(request.args, 'steps', default_steps, config_params.get('steps').get('max'))
+    height = get_and_clamp_int(
+        request.args, 'height', default_height, config_params.get('height').get('max'))
+    width = get_and_clamp_int(request.args, 'width', default_width, config_params.get('width').get('max'))
 
     seed = int(request.args.get('seed', -1))
     if seed == -1:
@@ -405,5 +408,5 @@ def inpaint():
 
 
 @app.route('/output/<path:filename>')
-def output(filename):
+def output(filename: str):
     return send_from_directory(path.join('..', output_path), filename, as_attachment=False)
diff --git a/onnx-web.code-workspace b/onnx-web.code-workspace
index 2dbb0be4..3cd3df78 100644
--- a/onnx-web.code-workspace
+++ b/onnx-web.code-workspace
@@ -13,13 +13,20 @@
 	],
 	"settings": {
 		"cSpell.words": [
+			"astype",
+			"CUDA",
 			"ddim",
 			"ddpm",
 			"directml",
 			"ftfy",
+			"Heun",
 			"huggingface",
 			"Inpaint",
+			"jsonify",
+			"Karras",
+			"KDPM",
 			"Multistep",
+			"ndarray",
 			"numpy",
 			"Onnx",
 			"onnxruntime",
@@ -27,7 +34,9 @@
 			"pretrained",
 			"protobuf",
 			"runwayml",
+			"scandir",
 			"scipy",
+			"Singlestep",
 			"spacy",
 			"spinalcase",
 			"stringcase",