diff --git a/api/onnx_web/serve.py b/api/onnx_web/serve.py
index aacc120d..78aef4b1 100644
--- a/api/onnx_web/serve.py
+++ b/api/onnx_web/serve.py
@@ -19,7 +19,7 @@ from diffusers import (
     # types
     DiffusionPipeline,
 )
-from flask import Flask, jsonify, request, send_file, send_from_directory, url_for
+from flask import Flask, jsonify, request, send_from_directory, url_for
 from flask_cors import CORS
 from flask_executor import Executor
 from hashlib import sha256
@@ -32,22 +32,6 @@ from typing import Any, Dict, Tuple, Union
 import json
 import numpy as np
 
-# defaults
-default_model = 'stable-diffusion-onnx-v1-5'
-default_platform = 'amd'
-default_scheduler = 'euler-a'
-default_prompt = "a photo of an astronaut eating a hamburger"
-default_cfg = 8
-default_steps = 20
-default_height = 512
-default_width = 512
-default_strength = 0.5
-
-max_cfg = 30
-max_steps = 150
-max_height = 512
-max_width = 512
-
 # paths
 bundle_path = environ.get('ONNX_WEB_BUNDLE_PATH',
                           path.join('..', 'gui', 'out'))
@@ -190,27 +174,41 @@ def pipeline_from_request():
     user = request.remote_addr
 
     # pipeline stuff
-    model = get_model_path(request.args.get('model', default_model))
+    model = get_model_path(request.args.get(
+        'model', config_params.get('model').get('default')))
     provider = get_from_map(request.args, 'platform',
-                            platform_providers, default_platform)
+                            platform_providers, config_params.get('provider').get('default'))
     scheduler = get_from_map(request.args, 'scheduler',
-                             pipeline_schedulers, default_scheduler)
+                             pipeline_schedulers, config_params.get('scheduler').get('default'))
 
     # image params
-    prompt = request.args.get('prompt', default_prompt)
+    prompt = request.args.get(
+        'prompt', config_params.get('prompt').get('default'))
     negative_prompt = request.args.get('negativePrompt', None)
 
     if negative_prompt is not None and negative_prompt.strip() == '':
         negative_prompt = None
 
     cfg = get_and_clamp_float(
-        request.args, 'cfg', default_cfg, config_params.get('cfg').get('max'), 0)
+        request.args, 'cfg',
+        config_params.get('cfg').get('default'),
+        config_params.get('cfg').get('max'),
+        config_params.get('cfg').get('min'))
     steps = get_and_clamp_int(
-        request.args, 'steps', default_steps, config_params.get('steps').get('max'))
+        request.args, 'steps',
+        config_params.get('steps').get('default'),
+        config_params.get('steps').get('max'),
+        config_params.get('steps').get('min'))
     height = get_and_clamp_int(
-        request.args, 'height', default_height, config_params.get('height').get('max'))
+        request.args, 'height',
+        config_params.get('height').get('default'),
+        config_params.get('height').get('max'),
+        config_params.get('height').get('min'))
     width = get_and_clamp_int(
-        request.args, 'width', default_width, config_params.get('width').get('max'))
+        request.args, 'width',
+        config_params.get('width').get('default'),
+        config_params.get('width').get('max'),
+        config_params.get('width').get('min'))
 
     seed = int(request.args.get('seed', -1))
     if seed == -1:
@@ -369,7 +367,6 @@ def list_schedulers():
 def img2img():
     input_file = request.files.get('source')
     input_image = Image.open(BytesIO(input_file.read())).convert('RGB')
-    input_image.thumbnail((default_width, default_height))
 
     strength = get_and_clamp_float(request.args, 'strength', 0.5, 1.0)
 
@@ -380,6 +377,7 @@ def img2img():
                                                   (prompt, cfg, negative_prompt, steps, strength, height, width))
     print("img2img output: %s" % (output_full))
 
+    input_image.thumbnail((width, height))
     executor.submit_stored(output_file, run_img2img_pipeline, model, provider,
                            scheduler, prompt, negative_prompt, cfg, steps, seed, output_full, strength, input_image)
 
@@ -394,8 +392,8 @@ def img2img():
             'cfg': cfg,
             'negativePrompt': negative_prompt,
             'steps': steps,
-            'height': default_height,
-            'width': default_width,
+            'height': height,
+            'width': width,
         }
     })
 
@@ -433,11 +431,9 @@ def txt2img():
 def inpaint():
     source_file = request.files.get('source')
     source_image = Image.open(BytesIO(source_file.read())).convert('RGB')
-    source_image.thumbnail((default_width, default_height))
 
     mask_file = request.files.get('mask')
     mask_image = Image.open(BytesIO(mask_file.read())).convert('RGB')
-    mask_image.thumbnail((default_width, default_height))
 
     (model, provider, scheduler, prompt, negative_prompt, cfg, steps, height,
      width, seed) = pipeline_from_request()
@@ -446,6 +442,8 @@ def inpaint():
         'inpaint', seed, (prompt, cfg, steps, height, width, seed))
     print("inpaint output: %s" % output_full)
 
+    source_image.thumbnail((width, height))
+    mask_image.thumbnail((width, height))
     executor.submit_stored(output_file, run_inpaint_pipeline, model, provider, scheduler, prompt, negative_prompt,
                            cfg, steps, seed, output_full, height, width, source_image, mask_image)
 
@@ -460,8 +458,8 @@ def inpaint():
             'cfg': cfg,
             'negativePrompt': negative_prompt,
             'steps': steps,
-            'height': default_height,
-            'width': default_width,
+            'height': height,
+            'width': width,
         }
     })