diff --git a/.changeset/wide-pianos-exist.md b/.changeset/wide-pianos-exist.md
new file mode 100644
index 000000000..5070a4d14
--- /dev/null
+++ b/.changeset/wide-pianos-exist.md
@@ -0,0 +1,5 @@
+---
+"openapi-typescript-helpers": patch
+---
+
+Preserve tuple types in Readable<T> and Writable<T> by using mapped type instead of (infer E)[] pattern
diff --git a/packages/openapi-typescript-helpers/src/index.ts b/packages/openapi-typescript-helpers/src/index.ts
index 391e0a694..fb04180f6 100644
--- a/packages/openapi-typescript-helpers/src/index.ts
+++ b/packages/openapi-typescript-helpers/src/index.ts
@@ -221,8 +221,8 @@ export type Readable<T> =
     ? never
     : T extends $Read<infer U>
       ? Readable<U>
-      : T extends (infer E)[]
-        ? Readable<E>[]
+      : T extends readonly any[]
+        ? { [K in keyof T]: Readable<T[K]> }
         : T extends object
           ? { [K in keyof T as NonNullable<T[K]> extends $Write<any> ? never : K]: Readable<T[K]> }
           : T;
@@ -238,8 +238,8 @@ export type Writable<T> =
     ? never
     : T extends $Write<infer U>
       ? Writable<U>
-      : T extends (infer E)[]
-        ? Writable<E>[]
+      : T extends readonly any[]
+        ? { [K in keyof T]: Writable<T[K]> }
         : T extends object
           ? { [K in keyof T as NonNullable<T[K]> extends $Read<any> ? never : K]: Writable<T[K]> } & {
               [K in keyof T as NonNullable<T[K]> extends $Read<any> ? K : never]?: never;