diff --git a/extensions-builtin/prompt-bracket-checker/javascript/prompt-bracket-checker.js b/extensions-builtin/prompt-bracket-checker/javascript/prompt-bracket-checker.js
index eccfb0f9d..251a1f578 100644
--- a/extensions-builtin/prompt-bracket-checker/javascript/prompt-bracket-checker.js
+++ b/extensions-builtin/prompt-bracket-checker/javascript/prompt-bracket-checker.js
@@ -93,10 +93,12 @@ function checkBrackets(evt) {
 }
 
 var shadowRootLoaded = setInterval(function() {
-  var shadowTextArea = document.querySelector('gradio-app').shadowRoot.querySelectorAll('#txt2img_prompt > label > textarea');
-  if(shadowTextArea.length < 1) {
-      return false;
-  }
+  var sahdowRoot = document.querySelector('gradio-app').shadowRoot;
+  if(! sahdowRoot)  return false;
+
+  var shadowTextArea = sahdowRoot.querySelectorAll('#txt2img_prompt > label > textarea');
+  if(shadowTextArea.length < 1)  return false;
+
 
   clearInterval(shadowRootLoaded);
 
diff --git a/javascript/hints.js b/javascript/hints.js
index fa5e5ae89..e746e20d5 100644
--- a/javascript/hints.js
+++ b/javascript/hints.js
@@ -92,6 +92,7 @@ titles = {
 
     "Weighted sum": "Result = A * (1 - M) + B * M",
     "Add difference": "Result = A + (B - C) * M",
+    "No interpolation": "Result = A",
 
 	"Initialization text": "If the number of tokens is more than the number of vectors, some may be skipped.\nLeave the textbox empty to start with zeroed out vectors",
     "Learning rate": "How fast should training go. Low values will take longer to train, high values may fail to converge (not generate accurate results) and/or may break the embedding (This has happened if you see Loss: nan in the training info textbox. If this happens, you need to manually restore your embedding from an older not-broken backup).\n\nYou can set a single numeric value, or multiple learning rates using the syntax:\n\n   rate_1:max_steps_1, rate_2:max_steps_2, ...\n\nEG:   0.005:100, 1e-3:1000, 1e-5\n\nWill train with rate of 0.005 for first 100 steps, then 1e-3 until 1000 steps, then 1e-5 for all remaining steps.",
diff --git a/javascript/progressbar.js b/javascript/progressbar.js
index 18c771a23..ff6d757ba 100644
--- a/javascript/progressbar.js
+++ b/javascript/progressbar.js
@@ -81,8 +81,13 @@ function request(url, data, handler, errorHandler){
     xhr.onreadystatechange = function () {
         if (xhr.readyState === 4) {
             if (xhr.status === 200) {
-                var js = JSON.parse(xhr.responseText);
-                handler(js)
+                try {
+                    var js = JSON.parse(xhr.responseText);
+                    handler(js)
+                } catch (error) {
+                    console.error(error);
+                    errorHandler()
+                }
             } else{
                 errorHandler()
             }
@@ -155,7 +160,7 @@ function requestProgress(id_task, progressbarContainer, gallery, atEnd, onProgre
     }
 
     var fun = function(id_task, id_live_preview){
-        request("/internal/progress", {"id_task": id_task, "id_live_preview": id_live_preview}, function(res){
+        request("./internal/progress", {"id_task": id_task, "id_live_preview": id_live_preview}, function(res){
             if(res.completed){
                 removeProgressBar()
                 return
diff --git a/javascript/ui.js b/javascript/ui.js
index 7d3d57a3c..37788a3e4 100644
--- a/javascript/ui.js
+++ b/javascript/ui.js
@@ -172,6 +172,15 @@ function submit_img2img(){
     return res
 }
 
+function modelmerger(){
+    var id = randomId()
+    requestProgress(id, gradioApp().getElementById('modelmerger_results_panel'), null, function(){})
+
+    var res = create_submit_args(arguments)
+    res[0] = id
+    return res
+}
+
 
 function ask_for_style_name(_, prompt_text, negative_prompt_text) {
     name_ = prompt('Style name:')
diff --git a/modules/devices.py b/modules/devices.py
index 206184fbf..524ec7af4 100644
--- a/modules/devices.py
+++ b/modules/devices.py
@@ -169,8 +169,10 @@ orig_Tensor_cumsum = torch.Tensor.cumsum
 def cumsum_fix(input, cumsum_func, *args, **kwargs):
     if input.device.type == 'mps':
         output_dtype = kwargs.get('dtype', input.dtype)
-        if any(output_dtype == broken_dtype for broken_dtype in [torch.bool, torch.int8, torch.int16, torch.int64]):
+        if output_dtype == torch.int64:
             return cumsum_func(input.cpu(), *args, **kwargs).to(input.device)
+        elif cumsum_needs_bool_fix and output_dtype == torch.bool or cumsum_needs_int_fix and (output_dtype == torch.int8 or output_dtype == torch.int16):
+            return cumsum_func(input.to(torch.int32), *args, **kwargs).to(torch.int64)
     return cumsum_func(input, *args, **kwargs)
 
 
@@ -181,9 +183,10 @@ if has_mps():
         torch.nn.functional.layer_norm = layer_norm_fix
         torch.Tensor.numpy = numpy_fix
     elif version.parse(torch.__version__) > version.parse("1.13.1"):
-        if not torch.Tensor([1,2]).to(torch.device("mps")).equal(torch.Tensor([1,1]).to(torch.device("mps")).cumsum(0, dtype=torch.int16)):
-            torch.cumsum = lambda input, *args, **kwargs: ( cumsum_fix(input, orig_cumsum, *args, **kwargs) )
-            torch.Tensor.cumsum = lambda self, *args, **kwargs: ( cumsum_fix(self, orig_Tensor_cumsum, *args, **kwargs) )
+        cumsum_needs_int_fix = not torch.Tensor([1,2]).to(torch.device("mps")).equal(torch.ShortTensor([1,1]).to(torch.device("mps")).cumsum(0))
+        cumsum_needs_bool_fix = not torch.BoolTensor([True,True]).to(device=torch.device("mps"), dtype=torch.int64).equal(torch.BoolTensor([True,False]).to(torch.device("mps")).cumsum(0))
+        torch.cumsum = lambda input, *args, **kwargs: ( cumsum_fix(input, orig_cumsum, *args, **kwargs) )
+        torch.Tensor.cumsum = lambda self, *args, **kwargs: ( cumsum_fix(self, orig_Tensor_cumsum, *args, **kwargs) )
         orig_narrow = torch.narrow
         torch.narrow = lambda *args, **kwargs: ( orig_narrow(*args, **kwargs).clone() )
 
diff --git a/modules/extras.py b/modules/extras.py
index 22668fcda..1218f88fc 100644
--- a/modules/extras.py
+++ b/modules/extras.py
@@ -15,7 +15,7 @@ from typing import Callable, List, OrderedDict, Tuple
 from functools import partial
 from dataclasses import dataclass
 
-from modules import processing, shared, images, devices, sd_models, sd_samplers
+from modules import processing, shared, images, devices, sd_models, sd_samplers, sd_vae
 from modules.shared import opts
 import modules.gfpgan_model
 from modules.ui import plaintext_to_html
@@ -251,7 +251,8 @@ def run_pnginfo(image):
 
 def create_config(ckpt_result, config_source, a, b, c):
     def config(x):
-        return sd_models.find_checkpoint_config(x) if x else None
+        res = sd_models.find_checkpoint_config(x) if x else None
+        return res if res != shared.sd_default_config else None
 
     if config_source == 0:
         cfg = config(a) or config(b) or config(c)
@@ -274,10 +275,25 @@ def create_config(ckpt_result, config_source, a, b, c):
     shutil.copyfile(cfg, checkpoint_filename)
 
 
-def run_modelmerger(primary_model_name, secondary_model_name, tertiary_model_name, interp_method, multiplier, save_as_half, custom_name, checkpoint_format, config_source):
+checkpoint_dict_skip_on_merge = ["cond_stage_model.transformer.text_model.embeddings.position_ids"]
+
+
+def to_half(tensor, enable):
+    if enable and tensor.dtype == torch.float:
+        return tensor.half()
+
+    return tensor
+
+
+def run_modelmerger(id_task, primary_model_name, secondary_model_name, tertiary_model_name, interp_method, multiplier, save_as_half, custom_name, checkpoint_format, config_source, bake_in_vae):
     shared.state.begin()
     shared.state.job = 'model-merge'
 
+    def fail(message):
+        shared.state.textinfo = message
+        shared.state.end()
+        return [*[gr.update() for _ in range(4)], message]
+
     def weighted_sum(theta0, theta1, alpha):
         return ((1 - alpha) * theta0) + (alpha * theta1)
 
@@ -287,57 +303,96 @@ def run_modelmerger(primary_model_name, secondary_model_name, tertiary_model_nam
     def add_difference(theta0, theta1_2_diff, alpha):
         return theta0 + (alpha * theta1_2_diff)
 
-    primary_model_info = sd_models.checkpoints_list[primary_model_name]
-    secondary_model_info = sd_models.checkpoints_list[secondary_model_name]
-    tertiary_model_info = sd_models.checkpoints_list.get(tertiary_model_name, None)
-    result_is_inpainting_model = False
+    def filename_weighted_sum():
+        a = primary_model_info.model_name
+        b = secondary_model_info.model_name
+        Ma = round(1 - multiplier, 2)
+        Mb = round(multiplier, 2)
+
+        return f"{Ma}({a}) + {Mb}({b})"
+
+    def filename_add_difference():
+        a = primary_model_info.model_name
+        b = secondary_model_info.model_name
+        c = tertiary_model_info.model_name
+        M = round(multiplier, 2)
+
+        return f"{a} + {M}({b} - {c})"
+
+    def filename_nothing():
+        return primary_model_info.model_name
 
     theta_funcs = {
-        "Weighted sum": (None, weighted_sum),
-        "Add difference": (get_difference, add_difference),
+        "Weighted sum": (filename_weighted_sum, None, weighted_sum),
+        "Add difference": (filename_add_difference, get_difference, add_difference),
+        "No interpolation": (filename_nothing, None, None),
     }
-    theta_func1, theta_func2 = theta_funcs[interp_method]
+    filename_generator, theta_func1, theta_func2 = theta_funcs[interp_method]
+    shared.state.job_count = (1 if theta_func1 else 0) + (1 if theta_func2 else 0)
 
-    if theta_func1 and not tertiary_model_info:
-        shared.state.textinfo = "Failed: Interpolation method requires a tertiary model."
-        shared.state.end()
-        return ["Failed: Interpolation method requires a tertiary model."] + [gr.Dropdown.update(choices=sd_models.checkpoint_tiles()) for _ in range(4)]
+    if not primary_model_name:
+        return fail("Failed: Merging requires a primary model.")
 
-    shared.state.textinfo = f"Loading {secondary_model_info.filename}..."
-    print(f"Loading {secondary_model_info.filename}...")
-    theta_1 = sd_models.read_state_dict(secondary_model_info.filename, map_location='cpu')
+    primary_model_info = sd_models.checkpoints_list[primary_model_name]
+
+    if theta_func2 and not secondary_model_name:
+        return fail("Failed: Merging requires a secondary model.")
+
+    secondary_model_info = sd_models.checkpoints_list[secondary_model_name] if theta_func2 else None
+
+    if theta_func1 and not tertiary_model_name:
+        return fail(f"Failed: Interpolation method ({interp_method}) requires a tertiary model.")
+
+    tertiary_model_info = sd_models.checkpoints_list[tertiary_model_name] if theta_func1 else None
+
+    result_is_inpainting_model = False
+
+    if theta_func2:
+        shared.state.textinfo = f"Loading B"
+        print(f"Loading {secondary_model_info.filename}...")
+        theta_1 = sd_models.read_state_dict(secondary_model_info.filename, map_location='cpu')
+    else:
+        theta_1 = None
 
     if theta_func1:
+        shared.state.textinfo = f"Loading C"
         print(f"Loading {tertiary_model_info.filename}...")
         theta_2 = sd_models.read_state_dict(tertiary_model_info.filename, map_location='cpu')
 
+        shared.state.textinfo = 'Merging B and C'
+        shared.state.sampling_steps = len(theta_1.keys())
         for key in tqdm.tqdm(theta_1.keys()):
+            if key in checkpoint_dict_skip_on_merge:
+                continue
+
             if 'model' in key:
                 if key in theta_2:
                     t2 = theta_2.get(key, torch.zeros_like(theta_1[key]))
                     theta_1[key] = theta_func1(theta_1[key], t2)
                 else:
                     theta_1[key] = torch.zeros_like(theta_1[key])
+
+            shared.state.sampling_step += 1
         del theta_2
 
+        shared.state.nextjob()
+
     shared.state.textinfo = f"Loading {primary_model_info.filename}..."
     print(f"Loading {primary_model_info.filename}...")
     theta_0 = sd_models.read_state_dict(primary_model_info.filename, map_location='cpu')
 
     print("Merging...")
-
-    chckpoint_dict_skip_on_merge = ["cond_stage_model.transformer.text_model.embeddings.position_ids"]
-
+    shared.state.textinfo = 'Merging A and B'
+    shared.state.sampling_steps = len(theta_0.keys())
     for key in tqdm.tqdm(theta_0.keys()):
-        if 'model' in key and key in theta_1:
+        if theta_1 and 'model' in key and key in theta_1:
 
-            if key in chckpoint_dict_skip_on_merge:
+            if key in checkpoint_dict_skip_on_merge:
                 continue
 
             a = theta_0[key]
             b = theta_1[key]
 
-            shared.state.textinfo = f'Merging layer {key}'
             # this enables merging an inpainting model (A) with another one (B);
             # where normal model would have 4 channels, for latenst space, inpainting model would
             # have another 4 channels for unmasked picture's latent space, plus one channel for mask, for a total of 9
@@ -352,36 +407,39 @@ def run_modelmerger(primary_model_name, secondary_model_name, tertiary_model_nam
             else:
                 theta_0[key] = theta_func2(a, b, multiplier)
 
-            if save_as_half:
-                theta_0[key] = theta_0[key].half()
+            theta_0[key] = to_half(theta_0[key], save_as_half)
 
-    # I believe this part should be discarded, but I'll leave it for now until I am sure
-    for key in theta_1.keys():
-        if 'model' in key and key not in theta_0:
+        shared.state.sampling_step += 1
 
-            if key in chckpoint_dict_skip_on_merge:
-                continue
-
-            theta_0[key] = theta_1[key]
-            if save_as_half:
-                theta_0[key] = theta_0[key].half()
     del theta_1
 
+    bake_in_vae_filename = sd_vae.vae_dict.get(bake_in_vae, None)
+    if bake_in_vae_filename is not None:
+        print(f"Baking in VAE from {bake_in_vae_filename}")
+        shared.state.textinfo = 'Baking in VAE'
+        vae_dict = sd_vae.load_vae_dict(bake_in_vae_filename, map_location='cpu')
+
+        for key in vae_dict.keys():
+            theta_0_key = 'first_stage_model.' + key
+            if theta_0_key in theta_0:
+                theta_0[theta_0_key] = to_half(vae_dict[key], save_as_half)
+
+        del vae_dict
+
+    if save_as_half and not theta_func2:
+        for key in theta_0.keys():
+            theta_0[key] = to_half(theta_0[key], save_as_half)
+
     ckpt_dir = shared.cmd_opts.ckpt_dir or sd_models.model_path
 
-    filename = \
-        primary_model_info.model_name + '_' + str(round(1-multiplier, 2)) + '-' + \
-        secondary_model_info.model_name + '_' + str(round(multiplier, 2)) + '-' + \
-        interp_method.replace(" ", "_") + \
-        '-merged.' +  \
-        ("inpainting." if result_is_inpainting_model else "") + \
-        checkpoint_format
-
-    filename = filename if custom_name == '' else (custom_name + '.' + checkpoint_format)
+    filename = filename_generator() if custom_name == '' else custom_name
+    filename += ".inpainting" if result_is_inpainting_model else ""
+    filename += "." + checkpoint_format
 
     output_modelname = os.path.join(ckpt_dir, filename)
 
-    shared.state.textinfo = f"Saving to {output_modelname}..."
+    shared.state.nextjob()
+    shared.state.textinfo = "Saving"
     print(f"Saving to {output_modelname}...")
 
     _, extension = os.path.splitext(output_modelname)
@@ -394,8 +452,8 @@ def run_modelmerger(primary_model_name, secondary_model_name, tertiary_model_nam
 
     create_config(output_modelname, config_source, primary_model_info, secondary_model_info, tertiary_model_info)
 
-    print("Checkpoint saved.")
-    shared.state.textinfo = "Checkpoint saved to " + output_modelname
+    print(f"Checkpoint saved to {output_modelname}.")
+    shared.state.textinfo = "Checkpoint saved"
     shared.state.end()
 
-    return ["Checkpoint saved to " + output_modelname] + [gr.Dropdown.update(choices=sd_models.checkpoint_tiles()) for _ in range(4)]
+    return [*[gr.Dropdown.update(choices=sd_models.checkpoint_tiles()) for _ in range(4)], "Checkpoint saved to " + output_modelname]
diff --git a/modules/progress.py b/modules/progress.py
index 3327b8830..c69ecf3d1 100644
--- a/modules/progress.py
+++ b/modules/progress.py
@@ -67,10 +67,13 @@ def progressapi(req: ProgressRequest):
 
     progress = 0
 
-    if shared.state.job_count > 0:
-        progress += shared.state.job_no / shared.state.job_count
-    if shared.state.sampling_steps > 0:
-        progress += 1 / shared.state.job_count * shared.state.sampling_step / shared.state.sampling_steps
+    job_count, job_no = shared.state.job_count, shared.state.job_no
+    sampling_steps, sampling_step = shared.state.sampling_steps, shared.state.sampling_step
+
+    if job_count > 0:
+        progress += job_no / job_count
+    if sampling_steps > 0 and job_count > 0:
+        progress += 1 / job_count * sampling_step / sampling_steps
 
     progress = min(progress, 1)
 
diff --git a/modules/sd_hijack.py b/modules/sd_hijack.py
index 6872eab12..4af457dfd 100644
--- a/modules/sd_hijack.py
+++ b/modules/sd_hijack.py
@@ -69,6 +69,13 @@ def undo_optimizations():
     ldm.modules.diffusionmodules.model.AttnBlock.forward = diffusionmodules_model_AttnBlock_forward
 
 
+def fix_checkpoint():
+    """checkpoints are now added and removed in embedding/hypernet code, since torch doesn't want
+    checkpoints to be added when not training (there's a warning)"""
+
+    pass
+
+
 class StableDiffusionModelHijack:
     fixes = None
     comments = []
diff --git a/modules/sd_models.py b/modules/sd_models.py
index 6a6ec2e09..3ea1dea7f 100644
--- a/modules/sd_models.py
+++ b/modules/sd_models.py
@@ -41,14 +41,16 @@ class CheckpointInfo:
         if name.startswith("\\") or name.startswith("/"):
             name = name[1:]
 
-        self.title = name
+        self.name = name
         self.model_name = os.path.splitext(name.replace("/", "_").replace("\\", "_"))[0]
         self.hash = model_hash(filename)
 
-        self.sha256 = hashes.sha256_from_cache(self.filename, "checkpoint/" + self.title)
+        self.sha256 = hashes.sha256_from_cache(self.filename, "checkpoint/" + name)
         self.shorthash = self.sha256[0:10] if self.sha256 else None
 
-        self.ids = [self.hash, self.model_name, self.title, f'{name} [{self.hash}]'] + ([self.shorthash, self.sha256] if self.shorthash else [])
+        self.title = name if self.shorthash is None else f'{name} [{self.shorthash}]'
+
+        self.ids = [self.hash, self.model_name, self.title, name, f'{name} [{self.hash}]'] + ([self.shorthash, self.sha256, f'{self.name} [{self.shorthash}]'] if self.shorthash else [])
 
     def register(self):
         checkpoints_list[self.title] = self
@@ -56,13 +58,15 @@ class CheckpointInfo:
             checkpoint_alisases[id] = self
 
     def calculate_shorthash(self):
-        self.sha256 = hashes.sha256(self.filename, "checkpoint/" + self.title)
+        self.sha256 = hashes.sha256(self.filename, "checkpoint/" + self.name)
         self.shorthash = self.sha256[0:10]
 
         if self.shorthash not in self.ids:
             self.ids += [self.shorthash, self.sha256]
             self.register()
 
+        self.title = f'{self.name} [{self.shorthash}]'
+
         return self.shorthash
 
 
@@ -225,7 +229,10 @@ def read_state_dict(checkpoint_file, print_global_state=False, map_location=None
 
 
 def load_model_weights(model, checkpoint_info: CheckpointInfo):
+    title = checkpoint_info.title
     sd_model_hash = checkpoint_info.calculate_shorthash()
+    if checkpoint_info.title != title:
+        shared.opts.data["sd_model_checkpoint"] = checkpoint_info.title
 
     cache_enabled = shared.opts.sd_checkpoint_cache > 0
 
diff --git a/modules/sd_vae.py b/modules/sd_vae.py
index da1bf15c4..4ce238b86 100644
--- a/modules/sd_vae.py
+++ b/modules/sd_vae.py
@@ -120,6 +120,12 @@ def resolve_vae(checkpoint_file):
     return None, None
 
 
+def load_vae_dict(filename, map_location):
+    vae_ckpt = sd_models.read_state_dict(filename, map_location=map_location)
+    vae_dict_1 = {k: v for k, v in vae_ckpt.items() if k[0:4] != "loss" and k not in vae_ignore_keys}
+    return vae_dict_1
+
+
 def load_vae(model, vae_file=None, vae_source="from unknown source"):
     global vae_dict, loaded_vae_file
     # save_settings = False
@@ -137,8 +143,7 @@ def load_vae(model, vae_file=None, vae_source="from unknown source"):
             print(f"Loading VAE weights {vae_source}: {vae_file}")
             store_base_vae(model)
 
-            vae_ckpt = sd_models.read_state_dict(vae_file, map_location=shared.weight_load_location)
-            vae_dict_1 = {k: v for k, v in vae_ckpt.items() if k[0:4] != "loss" and k not in vae_ignore_keys}
+            vae_dict_1 = load_vae_dict(vae_file, map_location=shared.weight_load_location)
             _load_vae_dict(model, vae_dict_1)
 
             if cache_enabled:
diff --git a/modules/shared.py b/modules/shared.py
index 66f4bfbce..b32540b13 100644
--- a/modules/shared.py
+++ b/modules/shared.py
@@ -20,10 +20,11 @@ from modules.paths import models_path, script_path, sd_path
 
 demo = None
 
+sd_default_config = os.path.join(script_path, "configs/v1-inference.yaml")
 sd_model_file = os.path.join(script_path, 'model.ckpt')
 default_sd_model_file = sd_model_file
 parser = argparse.ArgumentParser()
-parser.add_argument("--config", type=str, default=os.path.join(script_path, "configs/v1-inference.yaml"), help="path to config which constructs model",)
+parser.add_argument("--config", type=str, default=sd_default_config, help="path to config which constructs model",)
 parser.add_argument("--ckpt", type=str, default=sd_model_file, help="path to checkpoint of stable diffusion model; if specified, this checkpoint will be added to the list of checkpoints and loaded",)
 parser.add_argument("--ckpt-dir", type=str, default=None, help="Path to directory with stable diffusion checkpoints")
 parser.add_argument("--vae-dir", type=str, default=None, help="Path to directory with VAE files")
@@ -453,7 +454,7 @@ options_templates.update(options_section(('ui', "User interface"), {
     "js_modal_lightbox_initially_zoomed": OptionInfo(True, "Show images zoomed in by default in full page image viewer"),
     "show_progress_in_title": OptionInfo(True, "Show generation progress in window title."),
     "samplers_in_dropdown": OptionInfo(True, "Use dropdown for sampler selection instead of radio group"),
-    "dimensions_and_batch_together": OptionInfo(True, "Show Witdth/Height and Batch sliders in same row"),
+    "dimensions_and_batch_together": OptionInfo(True, "Show Width/Height and Batch sliders in same row"),
     'quicksettings': OptionInfo("sd_model_checkpoint", "Quicksettings list"),
     'ui_reorder': OptionInfo(", ".join(ui_reorder_categories), "txt2img/img2img UI item order"),
     'localization': OptionInfo("None", "Localization (requires restart)", gr.Dropdown, lambda: {"choices": ["None"] + list(localization.localizations.keys())}, refresh=lambda: localization.list_localizations(cmd_opts.localizations_dir)),
diff --git a/modules/textual_inversion/preprocess.py b/modules/textual_inversion/preprocess.py
index 64abff4da..c0ac11d39 100644
--- a/modules/textual_inversion/preprocess.py
+++ b/modules/textual_inversion/preprocess.py
@@ -12,7 +12,7 @@ from modules.shared import opts, cmd_opts
 from modules.textual_inversion import autocrop
 
 
-def preprocess(id_task, process_src, process_dst, process_width, process_height, preprocess_txt_action, process_flip, process_split, process_caption, process_caption_deepbooru=False, split_threshold=0.5, overlap_ratio=0.2, process_focal_crop=False, process_focal_crop_face_weight=0.9, process_focal_crop_entropy_weight=0.3, process_focal_crop_edges_weight=0.5, process_focal_crop_debug=False):
+def preprocess(id_task, process_src, process_dst, process_width, process_height, preprocess_txt_action, process_flip, process_split, process_caption, process_caption_deepbooru=False, split_threshold=0.5, overlap_ratio=0.2, process_focal_crop=False, process_focal_crop_face_weight=0.9, process_focal_crop_entropy_weight=0.3, process_focal_crop_edges_weight=0.5, process_focal_crop_debug=False, process_multicrop=None, process_multicrop_mindim=None, process_multicrop_maxdim=None, process_multicrop_minarea=None, process_multicrop_maxarea=None, process_multicrop_objective=None, process_multicrop_threshold=None):
     try:
         if process_caption:
             shared.interrogator.load()
@@ -20,7 +20,7 @@ def preprocess(id_task, process_src, process_dst, process_width, process_height,
         if process_caption_deepbooru:
             deepbooru.model.start()
 
-        preprocess_work(process_src, process_dst, process_width, process_height, preprocess_txt_action, process_flip, process_split, process_caption, process_caption_deepbooru, split_threshold, overlap_ratio, process_focal_crop, process_focal_crop_face_weight, process_focal_crop_entropy_weight, process_focal_crop_edges_weight, process_focal_crop_debug)
+        preprocess_work(process_src, process_dst, process_width, process_height, preprocess_txt_action, process_flip, process_split, process_caption, process_caption_deepbooru, split_threshold, overlap_ratio, process_focal_crop, process_focal_crop_face_weight, process_focal_crop_entropy_weight, process_focal_crop_edges_weight, process_focal_crop_debug, process_multicrop, process_multicrop_mindim, process_multicrop_maxdim, process_multicrop_minarea, process_multicrop_maxarea, process_multicrop_objective, process_multicrop_threshold)
 
     finally:
 
@@ -109,8 +109,30 @@ def split_pic(image, inverse_xy, width, height, overlap_ratio):
             splitted = image.crop((0, y, to_w, y + to_h))
         yield splitted
 
+# not using torchvision.transforms.CenterCrop because it doesn't allow float regions
+def center_crop(image: Image, w: int, h: int):
+    iw, ih = image.size
+    if ih / h < iw / w:
+        sw = w * ih / h
+        box = (iw - sw) / 2, 0, iw - (iw - sw) / 2, ih
+    else:
+        sh = h * iw / w
+        box = 0, (ih - sh) / 2, iw, ih - (ih - sh) / 2
+    return image.resize((w, h), Image.Resampling.LANCZOS, box)
 
-def preprocess_work(process_src, process_dst, process_width, process_height, preprocess_txt_action, process_flip, process_split, process_caption, process_caption_deepbooru=False, split_threshold=0.5, overlap_ratio=0.2, process_focal_crop=False, process_focal_crop_face_weight=0.9, process_focal_crop_entropy_weight=0.3, process_focal_crop_edges_weight=0.5, process_focal_crop_debug=False):
+
+def multicrop_pic(image: Image, mindim, maxdim, minarea, maxarea, objective, threshold):
+    iw, ih = image.size
+    err = lambda w, h: 1-(lambda x: x if x < 1 else 1/x)(iw/ih/(w/h))
+    wh = max(((w, h) for w in range(mindim, maxdim+1, 64) for h in range(mindim, maxdim+1, 64)
+        if minarea <= w * h <= maxarea and err(w, h) <= threshold),
+        key= lambda wh: (wh[0]*wh[1], -err(*wh))[::1 if objective=='Maximize area' else -1],
+        default=None
+    )
+    return wh and center_crop(image, *wh)
+    
+
+def preprocess_work(process_src, process_dst, process_width, process_height, preprocess_txt_action, process_flip, process_split, process_caption, process_caption_deepbooru=False, split_threshold=0.5, overlap_ratio=0.2, process_focal_crop=False, process_focal_crop_face_weight=0.9, process_focal_crop_entropy_weight=0.3, process_focal_crop_edges_weight=0.5, process_focal_crop_debug=False, process_multicrop=None, process_multicrop_mindim=None, process_multicrop_maxdim=None, process_multicrop_minarea=None, process_multicrop_maxarea=None, process_multicrop_objective=None, process_multicrop_threshold=None):
     width = process_width
     height = process_height
     src = os.path.abspath(process_src)
@@ -194,6 +216,14 @@ def preprocess_work(process_src, process_dst, process_width, process_height, pre
                 save_pic(focal, index, params, existing_caption=existing_caption)
             process_default_resize = False
 
+        if process_multicrop:
+            cropped = multicrop_pic(img, process_multicrop_mindim, process_multicrop_maxdim, process_multicrop_minarea, process_multicrop_maxarea, process_multicrop_objective, process_multicrop_threshold)
+            if cropped is not None:
+                save_pic(cropped, index, params, existing_caption=existing_caption)
+            else:
+                print(f"skipped {img.width}x{img.height} image {filename} (can't find suitable size within error threshold)")
+            process_default_resize = False
+
         if process_default_resize:
             img = images.resize_image(1, img, width, height)
             save_pic(img, index, params, existing_caption=existing_caption)
diff --git a/modules/ui.py b/modules/ui.py
index 28e226b51..92e53f43a 100644
--- a/modules/ui.py
+++ b/modules/ui.py
@@ -20,7 +20,7 @@ import numpy as np
 from PIL import Image, PngImagePlugin
 from modules.call_queue import wrap_gradio_gpu_call, wrap_queued_call, wrap_gradio_call
 
-from modules import sd_hijack, sd_models, localization, script_callbacks, ui_extensions, deepbooru
+from modules import sd_hijack, sd_models, localization, script_callbacks, ui_extensions, deepbooru, sd_vae
 from modules.ui_components import FormRow, FormGroup, ToolButton, FormHTML
 from modules.paths import script_path
 
@@ -439,7 +439,7 @@ def apply_setting(key, value):
         opts.data_labels[key].onchange()
 
     opts.save(shared.config_filename)
-    return value
+    return getattr(opts, key)
 
 
 def update_generation_info(generation_info, html_info, img_index):
@@ -597,6 +597,16 @@ def ordered_ui_categories():
         yield category
 
 
+def get_value_for_setting(key):
+    value = getattr(opts, key)
+
+    info = opts.data_labels[key]
+    args = info.component_args() if callable(info.component_args) else info.component_args or {}
+    args = {k: v for k, v in args.items() if k not in {'precision'}}
+
+    return gr.update(value=value, **args)
+
+
 def create_ui():
     import modules.img2img
     import modules.txt2img
@@ -1185,7 +1195,7 @@ def create_ui():
             with gr.Column(variant='compact'):
                 gr.HTML(value="<p style='margin-bottom: 2.5em'>A merger of the two checkpoints will be generated in your <b>checkpoint</b> directory.</p>")
 
-                with FormRow():
+                with FormRow(elem_id="modelmerger_models"):
                     primary_model_name = gr.Dropdown(modules.sd_models.checkpoint_tiles(), elem_id="modelmerger_primary_model_name", label="Primary model (A)")
                     create_refresh_button(primary_model_name, modules.sd_models.list_models, lambda: {"choices": modules.sd_models.checkpoint_tiles()}, "refresh_checkpoint_A")
 
@@ -1197,19 +1207,27 @@ def create_ui():
 
                 custom_name = gr.Textbox(label="Custom Name (Optional)", elem_id="modelmerger_custom_name")
                 interp_amount = gr.Slider(minimum=0.0, maximum=1.0, step=0.05, label='Multiplier (M) - set to 0 to get model A', value=0.3, elem_id="modelmerger_interp_amount")
-                interp_method = gr.Radio(choices=["Weighted sum", "Add difference"], value="Weighted sum", label="Interpolation Method", elem_id="modelmerger_interp_method")
+                interp_method = gr.Radio(choices=["No interpolation", "Weighted sum", "Add difference"], value="Weighted sum", label="Interpolation Method", elem_id="modelmerger_interp_method")
 
                 with FormRow():
                     checkpoint_format = gr.Radio(choices=["ckpt", "safetensors"], value="ckpt", label="Checkpoint format", elem_id="modelmerger_checkpoint_format")
                     save_as_half = gr.Checkbox(value=False, label="Save as float16", elem_id="modelmerger_save_as_half")
 
-                config_source = gr.Radio(choices=["A, B or C", "B", "C", "Don't"], value="A, B or C", label="Copy config from", type="index", elem_id="modelmerger_config_method")
+                with FormRow():
+                    with gr.Column():
+                        config_source = gr.Radio(choices=["A, B or C", "B", "C", "Don't"], value="A, B or C", label="Copy config from", type="index", elem_id="modelmerger_config_method")
+
+                    with gr.Column():
+                        with FormRow():
+                            bake_in_vae = gr.Dropdown(choices=["None"] + list(sd_vae.vae_dict), value="None", label="Bake in VAE", elem_id="modelmerger_bake_in_vae")
+                            create_refresh_button(bake_in_vae, sd_vae.refresh_vae_list, lambda: {"choices": ["None"] + list(sd_vae.vae_dict)}, "modelmerger_refresh_bake_in_vae")
 
                 with gr.Row():
                     modelmerger_merge = gr.Button(elem_id="modelmerger_merge", value="Merge", variant='primary')
 
-            with gr.Column(variant='panel'):
-                submit_result = gr.Textbox(elem_id="modelmerger_result", show_label=False)
+            with gr.Column(variant='compact', elem_id="modelmerger_results_container"):
+                with gr.Group(elem_id="modelmerger_results_panel"):
+                    modelmerger_result = gr.HTML(elem_id="modelmerger_result", show_label=False)
 
     with gr.Blocks(analytics_enabled=False) as train_interface:
         with gr.Row().style(equal_height=False):
@@ -1260,6 +1278,7 @@ def create_ui():
                         process_flip = gr.Checkbox(label='Create flipped copies', elem_id="train_process_flip")
                         process_split = gr.Checkbox(label='Split oversized images', elem_id="train_process_split")
                         process_focal_crop = gr.Checkbox(label='Auto focal point crop', elem_id="train_process_focal_crop")
+                        process_multicrop = gr.Checkbox(label='Auto-sized crop', elem_id="train_process_multicrop")
                         process_caption = gr.Checkbox(label='Use BLIP for caption', elem_id="train_process_caption")
                         process_caption_deepbooru = gr.Checkbox(label='Use deepbooru for caption', visible=True, elem_id="train_process_caption_deepbooru")
 
@@ -1272,7 +1291,19 @@ def create_ui():
                         process_focal_crop_entropy_weight = gr.Slider(label='Focal point entropy weight', value=0.15, minimum=0.0, maximum=1.0, step=0.05, elem_id="train_process_focal_crop_entropy_weight")
                         process_focal_crop_edges_weight = gr.Slider(label='Focal point edges weight', value=0.5, minimum=0.0, maximum=1.0, step=0.05, elem_id="train_process_focal_crop_edges_weight")
                         process_focal_crop_debug = gr.Checkbox(label='Create debug image', elem_id="train_process_focal_crop_debug")
-
+                    
+                    with gr.Column(visible=False) as process_multicrop_col:
+                        gr.Markdown('Each image is center-cropped with an automatically chosen width and height.')
+                        with gr.Row():
+                            process_multicrop_mindim = gr.Slider(minimum=64, maximum=2048, step=8, label="Dimension lower bound", value=384, elem_id="train_process_multicrop_mindim")
+                            process_multicrop_maxdim = gr.Slider(minimum=64, maximum=2048, step=8, label="Dimension upper bound", value=768, elem_id="train_process_multicrop_maxdim")
+                        with gr.Row():
+                            process_multicrop_minarea = gr.Slider(minimum=64*64, maximum=2048*2048, step=1, label="Area lower bound", value=64*64, elem_id="train_process_multicrop_minarea")
+                            process_multicrop_maxarea = gr.Slider(minimum=64*64, maximum=2048*2048, step=1, label="Area upper bound", value=640*640, elem_id="train_process_multicrop_maxarea")
+                        with gr.Row():
+                            process_multicrop_objective = gr.Radio(["Maximize area", "Minimize error"], value="Maximize area", label="Resizing objective", elem_id="train_process_multicrop_objective")
+                            process_multicrop_threshold = gr.Slider(minimum=0, maximum=1, step=0.01, label="Error threshold", value=0.1, elem_id="train_process_multicrop_threshold")
+   
                     with gr.Row():
                         with gr.Column(scale=3):
                             gr.HTML(value="")
@@ -1294,6 +1325,12 @@ def create_ui():
                         outputs=[process_focal_crop_row],
                     )
 
+                    process_multicrop.change(
+                        fn=lambda show: gr_show(show),
+                        inputs=[process_multicrop],
+                        outputs=[process_multicrop_col],
+                    )
+
                 def get_textual_inversion_template_names():
                     return sorted([x for x in textual_inversion.textual_inversion_templates])
 
@@ -1413,6 +1450,13 @@ def create_ui():
                 process_focal_crop_entropy_weight,
                 process_focal_crop_edges_weight,
                 process_focal_crop_debug,
+                process_multicrop,
+                process_multicrop_mindim,
+                process_multicrop_maxdim,
+                process_multicrop_minarea,
+                process_multicrop_maxarea,
+                process_multicrop_objective,
+                process_multicrop_threshold,
             ],
             outputs=[
                 ti_output,
@@ -1566,7 +1610,7 @@ def create_ui():
 
         opts.save(shared.config_filename)
 
-        return gr.update(value=value), opts.dumpjson()
+        return get_value_for_setting(key), opts.dumpjson()
 
     with gr.Blocks(analytics_enabled=False) as settings_interface:
         with gr.Row():
@@ -1738,7 +1782,7 @@ def create_ui():
         component_keys = [k for k in opts.data_labels.keys() if k in component_dict]
 
         def get_settings_values():
-            return [getattr(opts, key) for key in component_keys]
+            return [get_value_for_setting(key) for key in component_keys]
 
         demo.load(
             fn=get_settings_values,
@@ -1753,12 +1797,15 @@ def create_ui():
                 print("Error loading/saving model file:", file=sys.stderr)
                 print(traceback.format_exc(), file=sys.stderr)
                 modules.sd_models.list_models()  # to remove the potentially missing models from the list
-                return [f"Error merging checkpoints: {e}"] + [gr.Dropdown.update(choices=modules.sd_models.checkpoint_tiles()) for _ in range(4)]
+                return [*[gr.Dropdown.update(choices=modules.sd_models.checkpoint_tiles()) for _ in range(4)], f"Error merging checkpoints: {e}"]
             return results
 
+        modelmerger_merge.click(fn=lambda: '', inputs=[], outputs=[modelmerger_result])
         modelmerger_merge.click(
-            fn=modelmerger,
+            fn=wrap_gradio_gpu_call(modelmerger, extra_outputs=lambda: [gr.update() for _ in range(4)]),
+            _js='modelmerger',
             inputs=[
+                dummy_component,
                 primary_model_name,
                 secondary_model_name,
                 tertiary_model_name,
@@ -1768,13 +1815,14 @@ def create_ui():
                 custom_name,
                 checkpoint_format,
                 config_source,
+                bake_in_vae,
             ],
             outputs=[
-                submit_result,
                 primary_model_name,
                 secondary_model_name,
                 tertiary_model_name,
                 component_dict['sd_model_checkpoint'],
+                modelmerger_result,
             ]
         )
 
diff --git a/style.css b/style.css
index 7deedac58..ec0b4c5a6 100644
--- a/style.css
+++ b/style.css
@@ -635,6 +635,16 @@ canvas[key="mask"] {
     margin: 0.6em 0em 0.55em 0;
 }
 
+#modelmerger_results_container{
+    margin-top: 1em;
+    overflow: visible;
+}
+
+#modelmerger_models{
+    gap: 0;
+}
+
+
 #quicksettings .gr-button-tool{
     margin: 0;
 }
diff --git a/webui.sh b/webui.sh
index 6e07778ff..1edf921dd 100755
--- a/webui.sh
+++ b/webui.sh
@@ -165,7 +165,7 @@ else
     printf "\n%s\n" "${delimiter}"
     printf "Launching launch.py..."
     printf "\n%s\n" "${delimiter}"
-    gpu_info=$(lspci | grep VGA)
+    gpu_info=$(lspci 2>/dev/null | grep VGA)
     if echo "$gpu_info" | grep -q "AMD"
     then
         if [[ -z "${TORCH_COMMAND}" ]]