diff --git a/lib/rules/template-no-input-block.js b/lib/rules/template-no-input-block.js
index 5ad5344a4c..ffee36cbfb 100644
--- a/lib/rules/template-no-input-block.js
+++ b/lib/rules/template-no-input-block.js
@@ -18,6 +18,15 @@ module.exports = {
     },
   },
   create(context) {
+    // The classic `{{input}}` helper is HBS-only — it is not an ambient
+    // strict-mode keyword. In `.gjs`/`.gts` any `{{#input}}` is necessarily
+    // a user binding (an imported or locally-declared identifier named
+    // `input`), so flagging it would corrupt the user's intent.
+    const isStrictMode = context.filename.endsWith('.gjs') || context.filename.endsWith('.gts');
+    if (isStrictMode) {
+      return {};
+    }
+
     return {
       GlimmerBlockStatement(node) {
         if (node.path?.type === 'GlimmerPathExpression' && node.path.original === 'input') {
diff --git a/tests/lib/rules/template-no-input-block.js b/tests/lib/rules/template-no-input-block.js
index ba969fb301..5ec6b7c308 100644
--- a/tests/lib/rules/template-no-input-block.js
+++ b/tests/lib/rules/template-no-input-block.js
@@ -11,6 +11,28 @@ ruleTester.run('template-no-input-block', rule, {
     '<template>{{button}}</template>',
     '<template>{{#x-button}}{{/x-button}}</template>',
     '<template>{{input}}</template>',
+
+    // GJS/GTS: the classic `{{input}}` helper is HBS-only — `input` is not
+    // an ambient strict-mode keyword. Any `{{#input}}` in strict mode is a
+    // user-imported binding (or an unbound name that the strict-mode
+    // compiler will reject on its own); flagging here would corrupt the
+    // user's intent for the imported case.
+    {
+      filename: 'test.gjs',
+      code: '<template>{{#input}}content{{/input}}</template>',
+    },
+    {
+      filename: 'test.gts',
+      code: '<template>{{#input}}content{{/input}}</template>',
+    },
+    {
+      filename: 'test.gjs',
+      code: "import input from './my-input';\n<template>{{#input}}content{{/input}}</template>",
+    },
+    {
+      filename: 'test.gjs',
+      code: "import input from './my-input';\n<template>{{#input value=this.foo}}{{/input}}</template>",
+    },
   ],
   invalid: [
     {