diff --git a/lib/core.js b/lib/core.js
index 66ac23a..4bdfae6 100644
--- a/lib/core.js
+++ b/lib/core.js
@@ -334,6 +334,44 @@ handler.prototype.exit = function(args, fn) {
   this.emit("close");
 };
 
+handler.prototype.gpt = function(args, fn) {
+  let result = {
+    lines: [
+      "--- ChatGPT API Ready ---",
+      `> ${args[0]}`
+    ],
+    time: moment()
+  };
+
+  core.display(result);
+
+  const { Configuration, OpenAIApi } = require("openai");
+  const configuration = new Configuration({
+    apiKey: util.openai_api_key
+  });
+
+  const openai = new OpenAIApi(configuration);
+
+  (async () => {
+    const completion = await openai.createChatCompletion({
+      model: "gpt-3.5-turbo",
+      messages: [{ role: "user", content: args[0] }],
+    });
+
+    let responseLines = ["--- ChatGPT API Response ---", ...completion.data.choices[0].message.content.split(/\n/)];
+
+    let result = {
+      lines: responseLines,
+      time: moment()
+    };
+
+    core.display(result);
+
+  })();
+
+  fn(null, args);
+};
+
 (new cli(new handler())).run(); 
 
 module.exports = core;
diff --git a/lib/utility.js b/lib/utility.js
index b249e44..f1b98e8 100644
--- a/lib/utility.js
+++ b/lib/utility.js
@@ -17,6 +17,7 @@ let initialize = () => {
   utility.buffer = {};
   utility.theme = {};
   utility.twitter = {};
+  utility.openai_api_token = "";
 };
 
 initialize();
@@ -159,6 +160,10 @@ utility.parseSettingFile = (path) => {
       utility.twitter = settings.twitter;
     }
   }
+
+  if (settings.openai_api_key) {
+    utility.openai_api_key = settings.openai_api_key;
+  }
 };
 
 utility.decolateText = (message) => {
diff --git a/package-lock.json b/package-lock.json
index e8bfcaf..e27128f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,6 +18,7 @@
         "moment": "^2.29.4",
         "nconf": "^0.12.0",
         "node-emoji": "^1.11.0",
+        "openai": "^3.2.1",
         "shell": "^0.8.5",
         "sprintf-js": "^1.1.2",
         "twitter": "^1.7.1",
@@ -1887,6 +1888,36 @@
         "fn.name": "1.x.x"
       }
     },
+    "node_modules/openai": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/openai/-/openai-3.2.1.tgz",
+      "integrity": "sha512-762C9BNlJPbjjlWZi4WYK9iM2tAVAv0uUp1UmI34vb0CN5T2mjB/qM6RYBmNKMh/dN9fC+bxqPwWJZUTWW052A==",
+      "dependencies": {
+        "axios": "^0.26.0",
+        "form-data": "^4.0.0"
+      }
+    },
+    "node_modules/openai/node_modules/axios": {
+      "version": "0.26.1",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-0.26.1.tgz",
+      "integrity": "sha512-fPwcX4EvnSHuInCMItEhAGnaSEXRBjtzh9fOtsE6E1G6p7vl7edEeZe11QHf18+6+9gR5PbKV/sGKNaD8YaMeA==",
+      "dependencies": {
+        "follow-redirects": "^1.14.8"
+      }
+    },
+    "node_modules/openai/node_modules/form-data": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.0.tgz",
+      "integrity": "sha512-ETEklSGi5t0QMZuiXoA/Q6vcnxcLQP5vdugSpuAyi6SVGi2clPPp+xgEhuMaHC+zGgn31Kd235W35f7Hykkaww==",
+      "dependencies": {
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.8",
+        "mime-types": "^2.1.12"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
     "node_modules/optionator": {
       "version": "0.9.1",
       "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.9.1.tgz",
@@ -4167,6 +4198,35 @@
         "fn.name": "1.x.x"
       }
     },
+    "openai": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/openai/-/openai-3.2.1.tgz",
+      "integrity": "sha512-762C9BNlJPbjjlWZi4WYK9iM2tAVAv0uUp1UmI34vb0CN5T2mjB/qM6RYBmNKMh/dN9fC+bxqPwWJZUTWW052A==",
+      "requires": {
+        "axios": "^0.26.0",
+        "form-data": "^4.0.0"
+      },
+      "dependencies": {
+        "axios": {
+          "version": "0.26.1",
+          "resolved": "https://registry.npmjs.org/axios/-/axios-0.26.1.tgz",
+          "integrity": "sha512-fPwcX4EvnSHuInCMItEhAGnaSEXRBjtzh9fOtsE6E1G6p7vl7edEeZe11QHf18+6+9gR5PbKV/sGKNaD8YaMeA==",
+          "requires": {
+            "follow-redirects": "^1.14.8"
+          }
+        },
+        "form-data": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.0.tgz",
+          "integrity": "sha512-ETEklSGi5t0QMZuiXoA/Q6vcnxcLQP5vdugSpuAyi6SVGi2clPPp+xgEhuMaHC+zGgn31Kd235W35f7Hykkaww==",
+          "requires": {
+            "asynckit": "^0.4.0",
+            "combined-stream": "^1.0.8",
+            "mime-types": "^2.1.12"
+          }
+        }
+      }
+    },
     "optionator": {
       "version": "0.9.1",
       "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.9.1.tgz",
diff --git a/package.json b/package.json
index 3b2898e..c3e2a28 100644
--- a/package.json
+++ b/package.json
@@ -33,6 +33,7 @@
     "moment": "^2.29.4",
     "nconf": "^0.12.0",
     "node-emoji": "^1.11.0",
+    "openai": "^3.2.1",
     "shell": "^0.8.5",
     "sprintf-js": "^1.1.2",
     "twitter": "^1.7.1",
diff --git a/test/settings_sample.yaml b/test/settings_sample.yaml
index feae695..469fe1a 100644
--- a/test/settings_sample.yaml
+++ b/test/settings_sample.yaml
@@ -31,4 +31,4 @@ twitter:
   consumer_secret: CONSUMER_SECRET_SAMPLE
   access_token_key: ACCESS_TOKEN_KEY_SAMPLE
   access_token_secret: ACCESS_TOKEN_SECRET_SAMPLE
-
+openai_api_key: sk-xxxxxyyyyyzzzzzz
diff --git a/test/util_test.js b/test/util_test.js
index a7eecaf..2d52243 100644
--- a/test/util_test.js
+++ b/test/util_test.js
@@ -100,6 +100,11 @@ describe("設定ファイル読み込みのテスト", () => {
     assert.equal(util.theme.date, "red", "日付の表示用色指定が読み込めている");
   });
 
+  it("OpenAI API用の設定が読めていること", () => {
+    util.parseSettingFile('./test/settings_sample.yaml');
+    assert.equal(util.openai_api_key, "sk-xxxxxyyyyyzzzzzz", "OpenAI API用のキーが読み取れている");
+  });
+
   describe("twitter設定読み込みのテスト", () => {
     it("twitterの設定が無いYAMLファイルの場合、util.twitterのプロパティがfalseになっていること", () => {
       util.parseSettingFile('./test/settings_sample_without_twitter.yaml');