diff --git a/packages/mui-material-next/src/FilledInput/FilledInput.tsx b/packages/mui-material-next/src/FilledInput/FilledInput.tsx
index 3032be5fb9546c..8594233a9e4660 100644
--- a/packages/mui-material-next/src/FilledInput/FilledInput.tsx
+++ b/packages/mui-material-next/src/FilledInput/FilledInput.tsx
@@ -309,11 +309,13 @@ interface FilledInputComponent {
       /**
        * The component used for the input node.
        * Either a string to use a HTML element or a component.
+       * @default 'input'
        */
       inputComponent?: C;
     } & OverrideProps<FilledInputTypeMap, C>,
   ): JSX.Element | null;
   propTypes?: any;
+  muiName?: string;
 }
 
 FilledInput.propTypes /* remove-proptypes */ = {
@@ -331,10 +333,6 @@ FilledInput.propTypes /* remove-proptypes */ = {
    * If `true`, the `input` element is focused during the first mount.
    */
   autoFocus: PropTypes.bool,
-  /**
-   * @ignore
-   */
-  children: PropTypes.node,
   /**
    * Override or extend the styles applied to the component.
    */
@@ -390,6 +388,7 @@ FilledInput.propTypes /* remove-proptypes */ = {
   /**
    * The component used for the input node.
    * Either a string to use a HTML element or a component.
+   * @default 'input'
    */
   inputComponent: PropTypes /* @typescript-to-proptypes-ignore */.elementType,
   /**
@@ -507,7 +506,6 @@ FilledInput.propTypes /* remove-proptypes */ = {
   value: PropTypes.any,
 } as any;
 
-// @ts-ignore - internal logic to integrate with FormControl
 FilledInput.muiName = 'Input';
 
 export default FilledInput;
diff --git a/packages/mui-material-next/src/FilledInput/FilledInput.types.ts b/packages/mui-material-next/src/FilledInput/FilledInput.types.ts
index 81a694f2085274..f6234ddf46def8 100644
--- a/packages/mui-material-next/src/FilledInput/FilledInput.types.ts
+++ b/packages/mui-material-next/src/FilledInput/FilledInput.types.ts
@@ -1,13 +1,12 @@
 import { SxProps } from '@mui/system';
 // eslint-disable-next-line no-restricted-imports
 import { InternalStandardProps as StandardProps } from '@mui/material';
-import { PolymorphicProps } from '@mui/base/utils';
-import { Simplify } from '@mui/types';
+import { OverrideProps, Simplify } from '@mui/types';
 import { Theme } from '../styles/Theme.types';
 import { InputBaseProps } from '../InputBase/InputBase.types';
 import { FilledInputClasses } from './filledInputClasses';
 
-export type FilledInputOwnProps = StandardProps<Omit<InputBaseProps, 'slots'>> & {
+export type FilledInputOwnProps = StandardProps<Omit<InputBaseProps, 'children' | 'slots'>> & {
   /**
    * Override or extend the styles applied to the component.
    */
@@ -58,7 +57,10 @@ export interface FilledInputTypeMap<
 
 export type FilledInputProps<
   RootComponentType extends React.ElementType = FilledInputTypeMap['defaultComponent'],
-> = PolymorphicProps<FilledInputTypeMap<{}, RootComponentType>, RootComponentType>;
+  AdditionalProps = {},
+> = OverrideProps<FilledInputTypeMap<AdditionalProps, RootComponentType>, RootComponentType> & {
+  inputComponent?: React.ElementType;
+};
 
 export type FilledInputOwnerState = Simplify<
   FilledInputOwnProps & {
diff --git a/packages/mui-material-next/src/InputBase/InputBase.tsx b/packages/mui-material-next/src/InputBase/InputBase.tsx
index 2446f3c197cd93..fd8f85522ca6f3 100644
--- a/packages/mui-material-next/src/InputBase/InputBase.tsx
+++ b/packages/mui-material-next/src/InputBase/InputBase.tsx
@@ -546,6 +546,7 @@ interface InputBaseComponent {
       /**
        * The component used for the input node.
        * Either a string to use a HTML element or a component.
+       * @default 'input'
        */
       inputComponent?: C;
     } & OverrideProps<InputBaseTypeMap, C>,
@@ -627,6 +628,7 @@ InputBase.propTypes /* remove-proptypes */ = {
   /**
    * The component used for the input node.
    * Either a string to use a HTML element or a component.
+   * @default 'input'
    */
   inputComponent: PropTypes.elementType,
   /**