diff --git a/app/models/media_asset.rb b/app/models/media_asset.rb
index 138d0d3df..d99b5fb4e 100644
--- a/app/models/media_asset.rb
+++ b/app/models/media_asset.rb
@@ -320,13 +320,53 @@ class MediaAsset < ApplicationRecord
       self.duration = media_file.duration
     end
 
-    def regenerate_ai_tags!
+    def regenerate!(metadata: true, files: true, ai_tags: true)
       with_lock do
-        ai_tags.each(&:destroy!)
-        update!(ai_tags: generate_ai_tags)
+        variant("original").open_file! do |original_file|
+          regenerate_metadata!(original_file) if metadata
+          regenerate_files!(original_file) if files
+        end
+
+        regenerate_ai_tags! if ai_tags
       end
     end
 
+    # Regenerate all metadata for the asset, including the md5, width, height, file size, file ext,
+    # duration, and EXIF metadata, both on the media asset and on the post. This may change the tags
+    # as well if the new metadata causes automatic tags to be recalculated.
+    def regenerate_metadata!(original_file)
+      update!(file: original_file)
+      media_metadata.update!(file: original_file)
+
+      if saved_changes? && post.present?
+        CurrentUser.scoped(User.system) do
+          post.update!(md5: md5, file_ext: file_ext, file_size: file_size, image_width: image_width, image_height: image_height)
+        end
+      end
+    end
+
+    # Regenerate all thumbnail and sample image files for the asset.
+    def regenerate_files!(original_file)
+      distribute_files!(original_file)
+      purge_cached_urls!
+      post.update_iqdb if post.present?
+    end
+
+    # Purge all image URLs from Cloudflare.
+    def purge_cached_urls!
+      urls = variants.map(&:file_url)
+      urls += [post.tagged_file_url(tagged_filenames: true), post.tagged_large_file_url(tagged_filenames: true)] if post.present?
+
+      CloudflareService.new.purge_cache(urls.uniq)
+    end
+
+    # Regenerate the AI tags for the asset. This is based on the 360x360 thumbnail, so the files
+    # should be regenerated first in case the thumbnail changed.
+    def regenerate_ai_tags!
+      ai_tags.each(&:destroy!)
+      update!(ai_tags: generate_ai_tags)
+    end
+
     def generate_ai_tags
       return [] if !has_variant?("360x360")
 
diff --git a/app/models/post.rb b/app/models/post.rb
index 3efd66bef..76b25a9a0 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -1454,38 +1454,11 @@ class Post < ApplicationRecord
 
         ModAction.log("regenerated IQDB for post ##{id}", :post_regenerate_iqdb, subject: self, user: user)
       else
-        media_file = media_asset.variant(:original).open_file
-        media_asset.distribute_files!(media_file)
-
-        update!(
-          image_width: media_file.width,
-          image_height: media_file.height,
-          file_size: media_file.file_size,
-          file_ext: media_file.file_ext
-        )
-
-        media_asset.update!(
-          image_width: media_file.width,
-          image_height: media_file.height,
-          file_size: media_file.file_size,
-          file_ext: media_file.file_ext
-        )
-
-        purge_cached_urls!
-        update_iqdb
+        media_asset.regenerate!
 
         ModAction.log("regenerated image samples for post ##{id}", :post_regenerate, subject: self, user: user)
       end
     end
-
-    def purge_cached_urls!
-      urls = [
-        preview_file_url, large_file_url, file_url,
-        tagged_file_url(tagged_filenames: true), tagged_large_file_url(tagged_filenames: true),
-      ]
-
-      CloudflareService.new.purge_cache(urls)
-    end
   end
 
   concerning :IqdbMethods do