diff --git a/README.md b/README.md
index 6f815bf..a52938a 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,10 @@
 Workout Test and Diet 4 You Common Util Functions
 
+### Version 1.0.25
+
+- http get utf8
+- gpt4 model
+
 ### Version 1.0.24
 
 http get utf8
diff --git a/lib/model/openai_chat.dart b/lib/model/openai_chat.dart
index 5460efe..1b3a460 100644
--- a/lib/model/openai_chat.dart
+++ b/lib/model/openai_chat.dart
@@ -1,10 +1,13 @@
 class OpenAIChat {
   int id = 0;
   late String messages; // JSON of ChatMessage
-  String modelName = "gpt-3.5-turbo";
-  double temperature = 0.1;
+  late String modelName;
+  late double temperature;
 
-  OpenAIChat(this.messages, {String? modelName, double? temperature});
+  OpenAIChat(this.messages, {String? modelName, double? temperature}) {
+    this.modelName = modelName ?? "gpt-3.5-turbo";
+    this.temperature = temperature ?? 0.1;
+  }
 
   OpenAIChat.fromJson(Map json) {
     id = json["id"];
diff --git a/lib/service/openai_service.dart b/lib/service/openai_service.dart
index 4cc687f..40d4329 100644
--- a/lib/service/openai_service.dart
+++ b/lib/service/openai_service.dart
@@ -7,6 +7,10 @@ import 'package:workouttest_util/service/api.dart';
 import 'package:workouttest_util/util/logging.dart';
 
 class OpenAIApi with Logging {
+  final String modelDavinci = "text-davinci-003";
+  final String modelGpt35 = "gpt-3.5-turbo";
+  final String modelGpt4 = "gpt-4-32k";
+  final String modelAda = "text-embedding-ada-002";
   final APIClient _client = APIClient();
 
   Future<String> getOpenAICompletion(String question) async {
diff --git a/lib/service/webapi.dart b/lib/service/webapi.dart
index 85fcc14..1d5b06d 100644
--- a/lib/service/webapi.dart
+++ b/lib/service/webapi.dart
@@ -111,7 +111,7 @@ class APIWebClient with Common, Logging {
 
       log(" ------------get response code: ${result.statusCode}");
       if (result.statusCode == 200) {
-        return utf8.decode(result.bodyBytes);
+        return result.body;
       } else if (result.statusCode == 404) {
         throw const NotFoundException(message: "Not Found");
       } else {
diff --git a/pubspec.yaml b/pubspec.yaml
index b304a8f..891cf34 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: workouttest_util
 description: Workout Test app and web functions.
-version: 1.0.24
+version: 1.0.25
 
 environment:
   sdk: ">=2.18.6 <3.0.0"
diff --git a/test/openai_test.dart b/test/openai_test.dart
index b9c5aa7..c314dee 100644
--- a/test/openai_test.dart
+++ b/test/openai_test.dart
@@ -1,3 +1,4 @@
+import 'package:flutter_dotenv/flutter_dotenv.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:workouttest_util/model/cache.dart';
 import 'package:workouttest_util/model/openai.dart';
@@ -7,7 +8,8 @@ import 'package:workouttest_util/service/openai_service.dart';
 import 'dart:convert';
 
 void main() {
-  setUp(() {
+  setUp(() async {
+    await dotenv.load(fileName: "assets/.env");
     Cache().setDietTestBaseUrl();
   });
 
@@ -49,7 +51,7 @@ void main() {
         "Te a Diet4You applikáció asszisztense vagy. Add meg ennek az ételnek a kalória és tápanyagadatait: 'Whopper'. A válasz ez az objektum JSON alakított formája legyen: Meal [mealName: string, calMin: double,calMax: double, chMin: double,chMax: double, fatMin: double,fatMax: double, proteinMin: double,proteinMax: double, sugar: double, portion: double, unit: string]. A portion paraméter azt tartalmazza, hogy ebből az ételből hány gramm v. ml az átlagos adag. A unit paraméter a 'portion' mennyiségi egysége";
     OpenAIChatMessage message = OpenAIChatMessage(ChatRole.user, content);
     String json = jsonEncode([message]);
-    var openai = OpenAIChat(json);
+    var openai = OpenAIChat(json, modelName: OpenAIApi().modelGpt4, temperature: 0.0);
 
     String response = await api.getOpenAIChatCompletion(openai);
     print(response);