diff --git a/docs/generators/dart-dio.md b/docs/generators/dart-dio.md
index f93b09ffbf8d..7e62f92f0782 100644
--- a/docs/generators/dart-dio.md
+++ b/docs/generators/dart-dio.md
@@ -37,6 +37,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 |pubRepository|Repository in generated pubspec| |null|
 |pubVersion|Version in generated pubspec| |1.0.0|
 |serializationLibrary|Specify serialization library|<dl><dt>**built_value**</dt><dd>[DEFAULT] built_value</dd><dt>**json_serializable**</dt><dd>[BETA] json_serializable</dd></dl>|built_value|
+|skipCopyWith|Skip CopyWith when using Json Serializable for serialization| |false|
 |sortModelPropertiesByRequiredFlag|Sort model properties to place required parameters before optional parameters.| |true|
 |sortParamsByRequiredFlag|Sort method arguments to place required parameters before optional parameters.| |true|
 |sourceFolder|source folder for generated code| |src|
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/DartDioClientCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/DartDioClientCodegen.java
index cf8338e47e3d..d6ab80de2881 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/DartDioClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/DartDioClientCodegen.java
@@ -69,7 +69,9 @@ public class DartDioClientCodegen extends AbstractDartCodegen {
 
     private static final String DIO_IMPORT = "package:dio/dio.dart";
     public static final String FINAL_PROPERTIES = "finalProperties";
+    public static final String SKIP_COPY_WITH = "skipCopyWith";
     public static final String FINAL_PROPERTIES_DEFAULT_VALUE = "true";
+    public static final String SKIP_COPY_WITH_DEFAULT_VALUE = "false";
 
     private static final String CLIENT_NAME = "clientName";
 
@@ -138,6 +140,11 @@ public DartDioClientCodegen() {
         final CliOption finalProperties = CliOption.newBoolean(FINAL_PROPERTIES, "Whether properties are marked as final when using Json Serializable for serialization");
         finalProperties.setDefault("true");
         cliOptions.add(finalProperties);
+
+        // skip CopyWith option
+        final CliOption skipCopyWith = CliOption.newBoolean(SKIP_COPY_WITH, "Skip CopyWith when using Json Serializable for serialization");
+        skipCopyWith.setDefault("false");
+        cliOptions.add(skipCopyWith);
     }
 
     @Override
@@ -182,6 +189,13 @@ public void processOpts() {
             additionalProperties.put(FINAL_PROPERTIES, Boolean.parseBoolean(additionalProperties.get(FINAL_PROPERTIES).toString()));
         }
 
+        if (!additionalProperties.containsKey(SKIP_COPY_WITH)) {
+            additionalProperties.put(SKIP_COPY_WITH, Boolean.parseBoolean(SKIP_COPY_WITH_DEFAULT_VALUE));
+            LOGGER.debug("skipCopyWith not set, using default {}", SKIP_COPY_WITH_DEFAULT_VALUE);
+        } else {
+            additionalProperties.put(SKIP_COPY_WITH, Boolean.parseBoolean(additionalProperties.get(SKIP_COPY_WITH).toString()));
+        }
+
         if (!additionalProperties.containsKey(CLIENT_NAME)) {
             final String name = org.openapitools.codegen.utils.StringUtils.camelize(pubName);
             additionalProperties.put(CLIENT_NAME, name);
diff --git a/modules/openapi-generator/src/main/resources/dart/libraries/dio/pubspec.mustache b/modules/openapi-generator/src/main/resources/dart/libraries/dio/pubspec.mustache
index 402a81fc610b..b0ac707ecee7 100644
--- a/modules/openapi-generator/src/main/resources/dart/libraries/dio/pubspec.mustache
+++ b/modules/openapi-generator/src/main/resources/dart/libraries/dio/pubspec.mustache
@@ -25,7 +25,9 @@ dependencies:
   equatable: '^2.0.7'
 {{/useEquatable}}
 {{#useJsonSerializable}}
+  {{^skipCopyWith}}
   copy_with_extension: '^7.1.0'
+  {{/skipCopyWith}}
   json_annotation: '^4.9.0'
 {{/useJsonSerializable}}
 {{#useDateLibTimeMachine}}
@@ -39,7 +41,9 @@ dev_dependencies:
 {{/useBuiltValue}}
 {{#useJsonSerializable}}
   build_runner: any
+  {{^skipCopyWith}}
   copy_with_extension_gen: ^7.1.0
+  {{/skipCopyWith}}
   json_serializable: '^6.9.3'
 {{/useJsonSerializable}}
   test: '^1.16.0'
diff --git a/modules/openapi-generator/src/main/resources/dart/libraries/dio/serialization/json_serializable/class.mustache b/modules/openapi-generator/src/main/resources/dart/libraries/dio/serialization/json_serializable/class.mustache
index 55bf2bb73466..bee52d4d3bbd 100644
--- a/modules/openapi-generator/src/main/resources/dart/libraries/dio/serialization/json_serializable/class.mustache
+++ b/modules/openapi-generator/src/main/resources/dart/libraries/dio/serialization/json_serializable/class.mustache
@@ -1,4 +1,6 @@
+{{^skipCopyWith}}
 import 'package:copy_with_extension/copy_with_extension.dart';
+{{/skipCopyWith}}
 import 'package:json_annotation/json_annotation.dart';
 {{#useEquatable}}
 import 'package:equatable/src/equatable_utils.dart';
@@ -18,7 +20,9 @@ part '{{classFilename}}.g.dart';
 {{#isDeprecated}}
 @Deprecated('{{{classname}}} has been deprecated')
 {{/isDeprecated}}
+{{^skipCopyWith}}
 @CopyWith()
+{{/skipCopyWith}}
 @JsonSerializable(
   checked: true,
   createToJson: true,
diff --git a/modules/openapi-generator/src/test/java/org/openapitools/codegen/options/DartDioClientOptionsProvider.java b/modules/openapi-generator/src/test/java/org/openapitools/codegen/options/DartDioClientOptionsProvider.java
index bcda220f4328..648332073401 100644
--- a/modules/openapi-generator/src/test/java/org/openapitools/codegen/options/DartDioClientOptionsProvider.java
+++ b/modules/openapi-generator/src/test/java/org/openapitools/codegen/options/DartDioClientOptionsProvider.java
@@ -72,6 +72,7 @@ public Map<String, String> createOptions() {
                 .put(CodegenConstants.LEGACY_DISCRIMINATOR_BEHAVIOR, "true")
                 .put(CodegenConstants.DISALLOW_ADDITIONAL_PROPERTIES_IF_NOT_PRESENT, "true")
                 .put(CodegenConstants.ENUM_UNKNOWN_DEFAULT_CASE, ENUM_UNKNOWN_DEFAULT_CASE_VALUE)
+                .put(DartDioClientCodegen.SKIP_COPY_WITH, DartDioClientCodegen.SKIP_COPY_WITH_DEFAULT_VALUE)
                 .build();
     }