diff --git a/comfy/cli_args.py b/comfy/cli_args.py
index dc1597d8..83d8cd28 100644
--- a/comfy/cli_args.py
+++ b/comfy/cli_args.py
@@ -84,6 +84,8 @@ parser.add_argument("--dont-print-server", action="store_true", help="Don't prin
 parser.add_argument("--quick-test-for-ci", action="store_true", help="Quick test for CI.")
 parser.add_argument("--windows-standalone-build", action="store_true", help="Windows standalone build: Enable convenient things that most people using the standalone windows build will probably enjoy (like auto opening the page on startup).")
 
+parser.add_argument("--disable-metadata", action="store_true", help="Disable saving prompt metadata in files.")
+
 args = parser.parse_args()
 
 if args.windows_standalone_build:
diff --git a/comfy_extras/nodes_model_merging.py b/comfy_extras/nodes_model_merging.py
index 6146c450..bce4b3dd 100644
--- a/comfy_extras/nodes_model_merging.py
+++ b/comfy_extras/nodes_model_merging.py
@@ -6,6 +6,8 @@ import folder_paths
 import json
 import os
 
+from comfy.cli_args import args
+
 class ModelMergeSimple:
     @classmethod
     def INPUT_TYPES(s):
@@ -101,8 +103,7 @@ class CheckpointSave:
         if prompt is not None:
             prompt_info = json.dumps(prompt)
 
-        metadata = {"prompt": prompt_info}
-
+        metadata = {}
 
         enable_modelspec = True
         if isinstance(model.model, comfy.model_base.SDXL):
@@ -127,9 +128,11 @@ class CheckpointSave:
         elif model.model.model_type == comfy.model_base.ModelType.V_PREDICTION:
             metadata["modelspec.predict_key"] = "v"
 
-        if extra_pnginfo is not None:
-            for x in extra_pnginfo:
-                metadata[x] = json.dumps(extra_pnginfo[x])
+        if not args.disable_metadata:
+            metadata["prompt"] = prompt_info
+            if extra_pnginfo is not None:
+                for x in extra_pnginfo:
+                    metadata[x] = json.dumps(extra_pnginfo[x])
 
         output_checkpoint = f"{filename}_{counter:05}_.safetensors"
         output_checkpoint = os.path.join(full_output_folder, output_checkpoint)
diff --git a/nodes.py b/nodes.py
index b0d05f0d..240619ed 100644
--- a/nodes.py
+++ b/nodes.py
@@ -26,6 +26,8 @@ import comfy.utils
 import comfy.clip_vision
 
 import comfy.model_management
+from comfy.cli_args import args
+
 import importlib
 
 import folder_paths
@@ -352,10 +354,12 @@ class SaveLatent:
         if prompt is not None:
             prompt_info = json.dumps(prompt)
 
-        metadata = {"prompt": prompt_info}
-        if extra_pnginfo is not None:
-            for x in extra_pnginfo:
-                metadata[x] = json.dumps(extra_pnginfo[x])
+        metadata = None
+        if not args.disable_metadata:
+            metadata = {"prompt": prompt_info}
+            if extra_pnginfo is not None:
+                for x in extra_pnginfo:
+                    metadata[x] = json.dumps(extra_pnginfo[x])
 
         file = f"{filename}_{counter:05}_.latent"
         file = os.path.join(full_output_folder, file)
@@ -1214,12 +1218,14 @@ class SaveImage:
         for image in images:
             i = 255. * image.cpu().numpy()
             img = Image.fromarray(np.clip(i, 0, 255).astype(np.uint8))
-            metadata = PngInfo()
-            if prompt is not None:
-                metadata.add_text("prompt", json.dumps(prompt))
-            if extra_pnginfo is not None:
-                for x in extra_pnginfo:
-                    metadata.add_text(x, json.dumps(extra_pnginfo[x]))
+            metadata = None
+            if not args.disable_metadata:
+                metadata = PngInfo()
+                if prompt is not None:
+                    metadata.add_text("prompt", json.dumps(prompt))
+                if extra_pnginfo is not None:
+                    for x in extra_pnginfo:
+                        metadata.add_text(x, json.dumps(extra_pnginfo[x]))
 
             file = f"{filename}_{counter:05}_.png"
             img.save(os.path.join(full_output_folder, file), pnginfo=metadata, compress_level=4)