feat: customise default model parameters and system message

Fixes #97, Fixes #89, Fixes #35

public/locales/en/model.json

@@ -21,5 +21,8 @@
   "frequencyPenalty": {
     "label": "Frequency Penalty",
     "description": "Number between -2.0 and 2.0. Positive values penalize new tokens based on their existing frequency in the text so far, decreasing the model's likelihood to repeat the same line verbatim. (Default: 0)"
-  }
+  },
+  "defaultChatConfig": "Default Chat Config",
+  "defaultSystemMessage": "Default System Message",
+  "resetToDefault": "Reset To Default"
 }

public/locales/zh-CN/model.json

@@ -21,5 +21,8 @@
   "frequencyPenalty": {
     "label": "频率惩罚",
     "description": "数值在 -2.0 到 2.0 之间。正值会根据新 token 在文本中的现有频率来惩罚它们，降低模型直接重复相同语句的可能性。(默认: 0)"
-  }
+  },
+  "defaultChatConfig": "默认聊天配置",
+  "defaultSystemMessage": "默认系统消息",
+  "resetToDefault": "重置为默认"
 }

public/locales/zh-HK/model.json

@@ -21,5 +21,8 @@
   "frequencyPenalty": {
     "label": "頻率懲罰",
     "description": "係一個 -2.0 到 2.0 之間嘅數值。正嘅數值表示，如果 token 喺之前嘅文字中出現頻率越高，輸出嗰陣就會越大力噉懲罰佢，令到佢被揀中嘅機率降低，即係可以降低模型重複同一句説話嘅機會。(預設: 0)"
-  }
+  },
+  "defaultChatConfig": "預設聊天配置",
+  "defaultSystemMessage": "預設系統消息",
+  "resetToDefault": "重置為預設"
 }

src/components/Chat/ChatContent/ChatTitle.tsx

@@ -4,7 +4,7 @@ import { shallow } from 'zustand/shallow';
 import useStore from '@store/store';
 import ConfigMenu from '@components/ConfigMenu';
 import { ChatInterface, ConfigInterface } from '@type/chat';
-import { defaultChatConfig } from '@constants/chat';
+import { _defaultChatConfig } from '@constants/chat';
 
 const ChatTitle = React.memo(() => {
   const { t } = useTranslation('model');
@@ -35,7 +35,7 @@ const ChatTitle = React.memo(() => {
     const chats = useStore.getState().chats;
     if (chats && chats.length > 0 && currentChatIndex !== -1 && !config) {
       const updatedChats: ChatInterface[] = JSON.parse(JSON.stringify(chats));
-      updatedChats[currentChatIndex].config = { ...defaultChatConfig };
+      updatedChats[currentChatIndex].config = { ..._defaultChatConfig };
       setChats(updatedChats);
     }
   }, [currentChatIndex]);

src/components/ChatConfigMenu/ChatConfigMenu.tsx

@@ -0,0 +1,168 @@
+import React, { useState } from 'react';
+import useStore from '@store/store';
+import { useTranslation } from 'react-i18next';
+
+import PopupModal from '@components/PopupModal';
+import {
+  FrequencyPenaltySlider,
+  MaxTokenSlider,
+  ModelSelector,
+  PresencePenaltySlider,
+  TemperatureSlider,
+  TopPSlider,
+} from '@components/ConfigMenu/ConfigMenu';
+
+import { ModelOptions } from '@type/chat';
+import { _defaultChatConfig, _defaultSystemMessage } from '@constants/chat';
+
+const ChatConfigMenu = () => {
+  const { t } = useTranslation('model');
+  const [isModalOpen, setIsModalOpen] = useState<boolean>(false);
+  return (
+    <div>
+      <button className='btn btn-neutral' onClick={() => setIsModalOpen(true)}>
+        {t('defaultChatConfig')}
+      </button>
+      {isModalOpen && <ChatConfigPopup setIsModalOpen={setIsModalOpen} />}
+    </div>
+  );
+};
+
+const ChatConfigPopup = ({
+  setIsModalOpen,
+}: {
+  setIsModalOpen: React.Dispatch<React.SetStateAction<boolean>>;
+}) => {
+  const config = useStore.getState().defaultChatConfig;
+  const setDefaultChatConfig = useStore((state) => state.setDefaultChatConfig);
+  const setDefaultSystemMessage = useStore(
+    (state) => state.setDefaultSystemMessage
+  );
+
+  const [_systemMessage, _setSystemMessage] = useState<string>(
+    useStore.getState().defaultSystemMessage
+  );
+  const [_model, _setModel] = useState<ModelOptions>(config.model);
+  const [_maxToken, _setMaxToken] = useState<number>(config.max_tokens);
+  const [_temperature, _setTemperature] = useState<number>(config.temperature);
+  const [_topP, _setTopP] = useState<number>(config.top_p);
+  const [_presencePenalty, _setPresencePenalty] = useState<number>(
+    config.presence_penalty
+  );
+  const [_frequencyPenalty, _setFrequencyPenalty] = useState<number>(
+    config.frequency_penalty
+  );
+
+  const { t } = useTranslation('model');
+
+  const handleSave = () => {
+    setDefaultChatConfig({
+      model: _model,
+      max_tokens: _maxToken,
+      temperature: _temperature,
+      top_p: _topP,
+      presence_penalty: _presencePenalty,
+      frequency_penalty: _frequencyPenalty,
+    });
+    setDefaultSystemMessage(_systemMessage);
+    setIsModalOpen(false);
+  };
+
+  const handleReset = () => {
+    _setModel(_defaultChatConfig.model);
+    _setMaxToken(_defaultChatConfig.max_tokens);
+    _setTemperature(_defaultChatConfig.temperature);
+    _setTopP(_defaultChatConfig.top_p);
+    _setPresencePenalty(_defaultChatConfig.presence_penalty);
+    _setFrequencyPenalty(_defaultChatConfig.frequency_penalty);
+    _setSystemMessage(_defaultSystemMessage);
+  };
+
+  return (
+    <PopupModal
+      title={t('defaultChatConfig') as string}
+      setIsModalOpen={setIsModalOpen}
+      handleConfirm={handleSave}
+    >
+      <div className='p-6 border-b border-gray-200 dark:border-gray-600 w-[90vw] max-w-full text-sm text-gray-900 dark:text-gray-300'>
+        <DefaultSystemChat
+          _systemMessage={_systemMessage}
+          _setSystemMessage={_setSystemMessage}
+        />
+        <ModelSelector _model={_model} _setModel={_setModel} />
+        <MaxTokenSlider
+          _maxToken={_maxToken}
+          _setMaxToken={_setMaxToken}
+          _model={_model}
+        />
+        <TemperatureSlider
+          _temperature={_temperature}
+          _setTemperature={_setTemperature}
+        />
+        <TopPSlider _topP={_topP} _setTopP={_setTopP} />
+        <PresencePenaltySlider
+          _presencePenalty={_presencePenalty}
+          _setPresencePenalty={_setPresencePenalty}
+        />
+        <FrequencyPenaltySlider
+          _frequencyPenalty={_frequencyPenalty}
+          _setFrequencyPenalty={_setFrequencyPenalty}
+        />
+        <div
+          className='btn btn-neutral cursor-pointer mt-5'
+          onClick={handleReset}
+        >
+          {t('resetToDefault')}
+        </div>
+      </div>
+    </PopupModal>
+  );
+};
+
+const DefaultSystemChat = ({
+  _systemMessage,
+  _setSystemMessage,
+}: {
+  _systemMessage: string;
+  _setSystemMessage: React.Dispatch<React.SetStateAction<string>>;
+}) => {
+  const { t } = useTranslation('model');
+
+  const handleInput = (e: React.ChangeEvent<HTMLTextAreaElement>) => {
+    e.target.style.height = 'auto';
+    e.target.style.height = `${e.target.scrollHeight}px`;
+    e.target.style.maxHeight = `${e.target.scrollHeight}px`;
+  };
+
+  const handleOnFocus = (e: React.FocusEvent<HTMLTextAreaElement, Element>) => {
+    e.target.style.height = 'auto';
+    e.target.style.height = `${e.target.scrollHeight}px`;
+    e.target.style.maxHeight = `${e.target.scrollHeight}px`;
+  };
+
+  const handleOnBlur = (e: React.FocusEvent<HTMLTextAreaElement, Element>) => {
+    e.target.style.height = 'auto';
+    e.target.style.maxHeight = '2.5rem';
+  };
+
+  return (
+    <div>
+      <div className='block text-sm font-medium text-gray-900 dark:text-white'>
+        {t('defaultSystemMessage')}
+      </div>
+      <textarea
+        className='my-2 mx-0 px-2 resize-none rounded-lg bg-transparent overflow-y-hidden leading-7 p-1 border border-gray-400/50 focus:ring-1 focus:ring-blue w-full max-h-10 transition-all'
+        onFocus={handleOnFocus}
+        onBlur={handleOnBlur}
+        onChange={(e) => {
+          _setSystemMessage(e.target.value);
+        }}
+        onInput={handleInput}
+        value={_systemMessage}
+        rows={1}
+      ></textarea>
+    </div>
+  );
+};
+
+export default ChatConfigMenu;

src/components/ChatConfigMenu/index.ts

@@ -0,0 +1 @@
+export { default } from './ChatConfigMenu';

src/components/ConfigMenu/ConfigMenu.tsx

@@ -52,92 +52,25 @@ const ConfigMenu = ({
           _setMaxToken={_setMaxToken}
           _model={_model}
         />
-        <div className='mt-5 pt-5 border-t border-gray-500'>
+        <TemperatureSlider
-          <label className='block text-sm font-medium text-gray-900 dark:text-white'>
+          _temperature={_temperature}
-            {t('temperature.label')}: {_temperature}
+          _setTemperature={_setTemperature}
-          </label>
+        />
-          <input
+        <TopPSlider _topP={_topP} _setTopP={_setTopP} />
-            id='default-range'
+        <PresencePenaltySlider
-            type='range'
+          _presencePenalty={_presencePenalty}
-            value={_temperature}
+          _setPresencePenalty={_setPresencePenalty}
-            onChange={(e) => {
+        />
-              _setTemperature(Number(e.target.value));
+        <FrequencyPenaltySlider
-            }}
+          _frequencyPenalty={_frequencyPenalty}
-            min={0}
+          _setFrequencyPenalty={_setFrequencyPenalty}
-            max={2}
+        />
-            step={0.1}
-            className='w-full h-2 bg-gray-200 rounded-lg appearance-none cursor-pointer'
-          />
-          <div className='min-w-fit text-gray-500 dark:text-gray-300 text-sm mt-2'>
-            {t('temperature.description')}
-          </div>
-        </div>
-        <div className='mt-5 pt-5 border-t border-gray-500'>
-          <label className='block text-sm font-medium text-gray-900 dark:text-white'>
-            {t('topP.label')}: {_topP}
-          </label>
-          <input
-            id='default-range'
-            type='range'
-            value={_topP}
-            onChange={(e) => {
-              _setTopP(Number(e.target.value));
-            }}
-            min={0}
-            max={1}
-            step={0.05}
-            className='w-full h-2 bg-gray-200 rounded-lg appearance-none cursor-pointer'
-          />
-          <div className='min-w-fit text-gray-500 dark:text-gray-300 text-sm mt-2'>
-            {t('topP.description')}
-          </div>
-        </div>
-        <div className='mt-5 pt-5 border-t border-gray-500'>
-          <label className='block text-sm font-medium text-gray-900 dark:text-white'>
-            {t('presencePenalty.label')}: {_presencePenalty}
-          </label>
-          <input
-            id='default-range'
-            type='range'
-            value={_presencePenalty}
-            onChange={(e) => {
-              _setPresencePenalty(Number(e.target.value));
-            }}
-            min={-2}
-            max={2}
-            step={0.1}
-            className='w-full h-2 bg-gray-200 rounded-lg appearance-none cursor-pointer'
-          />
-          <div className='min-w-fit text-gray-500 dark:text-gray-300 text-sm mt-2'>
-            {t('presencePenalty.description')}
-          </div>
-        </div>
-        <div className='mt-5 pt-5 border-t border-gray-500'>
-          <label className='block text-sm font-medium text-gray-900 dark:text-white'>
-            {t('frequencyPenalty.label')}: {_frequencyPenalty}
-          </label>
-          <input
-            id='default-range'
-            type='range'
-            value={_frequencyPenalty}
-            onChange={(e) => {
-              _setFrequencyPenalty(Number(e.target.value));
-            }}
-            min={-2}
-            max={2}
-            step={0.1}
-            className='w-full h-2 bg-gray-200 rounded-lg appearance-none cursor-pointer'
-          />
-          <div className='min-w-fit text-gray-500 dark:text-gray-300 text-sm mt-2'>
-            {t('frequencyPenalty.description')}
-          </div>
-        </div>
       </div>
     </PopupModal>
   );
 };
 
-const ModelSelector = ({
+export const ModelSelector = ({
   _model,
   _setModel,
 }: {
@@ -184,7 +117,7 @@ const ModelSelector = ({
   );
 };
 
-const MaxTokenSlider = ({
+export const MaxTokenSlider = ({
   _maxToken,
   _setMaxToken,
   _model,
@@ -226,4 +159,136 @@ const MaxTokenSlider = ({
   );
 };
 
+export const TemperatureSlider = ({
+  _temperature,
+  _setTemperature,
+}: {
+  _temperature: number;
+  _setTemperature: React.Dispatch<React.SetStateAction<number>>;
+}) => {
+  const { t } = useTranslation('model');
+
+  return (
+    <div className='mt-5 pt-5 border-t border-gray-500'>
+      <label className='block text-sm font-medium text-gray-900 dark:text-white'>
+        {t('temperature.label')}: {_temperature}
+      </label>
+      <input
+        id='default-range'
+        type='range'
+        value={_temperature}
+        onChange={(e) => {
+          _setTemperature(Number(e.target.value));
+        }}
+        min={0}
+        max={2}
+        step={0.1}
+        className='w-full h-2 bg-gray-200 rounded-lg appearance-none cursor-pointer'
+      />
+      <div className='min-w-fit text-gray-500 dark:text-gray-300 text-sm mt-2'>
+        {t('temperature.description')}
+      </div>
+    </div>
+  );
+};
+
+export const TopPSlider = ({
+  _topP,
+  _setTopP,
+}: {
+  _topP: number;
+  _setTopP: React.Dispatch<React.SetStateAction<number>>;
+}) => {
+  const { t } = useTranslation('model');
+
+  return (
+    <div className='mt-5 pt-5 border-t border-gray-500'>
+      <label className='block text-sm font-medium text-gray-900 dark:text-white'>
+        {t('topP.label')}: {_topP}
+      </label>
+      <input
+        id='default-range'
+        type='range'
+        value={_topP}
+        onChange={(e) => {
+          _setTopP(Number(e.target.value));
+        }}
+        min={0}
+        max={1}
+        step={0.05}
+        className='w-full h-2 bg-gray-200 rounded-lg appearance-none cursor-pointer'
+      />
+      <div className='min-w-fit text-gray-500 dark:text-gray-300 text-sm mt-2'>
+        {t('topP.description')}
+      </div>
+    </div>
+  );
+};
+
+export const PresencePenaltySlider = ({
+  _presencePenalty,
+  _setPresencePenalty,
+}: {
+  _presencePenalty: number;
+  _setPresencePenalty: React.Dispatch<React.SetStateAction<number>>;
+}) => {
+  const { t } = useTranslation('model');
+
+  return (
+    <div className='mt-5 pt-5 border-t border-gray-500'>
+      <label className='block text-sm font-medium text-gray-900 dark:text-white'>
+        {t('presencePenalty.label')}: {_presencePenalty}
+      </label>
+      <input
+        id='default-range'
+        type='range'
+        value={_presencePenalty}
+        onChange={(e) => {
+          _setPresencePenalty(Number(e.target.value));
+        }}
+        min={-2}
+        max={2}
+        step={0.1}
+        className='w-full h-2 bg-gray-200 rounded-lg appearance-none cursor-pointer'
+      />
+      <div className='min-w-fit text-gray-500 dark:text-gray-300 text-sm mt-2'>
+        {t('presencePenalty.description')}
+      </div>
+    </div>
+  );
+};
+
+export const FrequencyPenaltySlider = ({
+  _frequencyPenalty,
+  _setFrequencyPenalty,
+}: {
+  _frequencyPenalty: number;
+  _setFrequencyPenalty: React.Dispatch<React.SetStateAction<number>>;
+}) => {
+  const { t } = useTranslation('model');
+
+  return (
+    <div className='mt-5 pt-5 border-t border-gray-500'>
+      <label className='block text-sm font-medium text-gray-900 dark:text-white'>
+        {t('frequencyPenalty.label')}: {_frequencyPenalty}
+      </label>
+      <input
+        id='default-range'
+        type='range'
+        value={_frequencyPenalty}
+        onChange={(e) => {
+          _setFrequencyPenalty(Number(e.target.value));
+        }}
+        min={-2}
+        max={2}
+        step={0.1}
+        className='w-full h-2 bg-gray-200 rounded-lg appearance-none cursor-pointer'
+      />
+      <div className='min-w-fit text-gray-500 dark:text-gray-300 text-sm mt-2'>
+        {t('frequencyPenalty.description')}
+      </div>
+    </div>
+  );
+};
+
 export default ConfigMenu;

src/components/SettingsMenu/SettingsMenu.tsx

@@ -8,6 +8,7 @@ import ThemeSwitcher from '@components/Menu/MenuOptions/ThemeSwitcher';
 import LanguageSelector from '@components/LanguageSelector';
 import AutoTitleToggle from './AutoTitleToggle';
 import PromptLibraryMenu from '@components/PromptLibraryMenu';
+import ChatConfigMenu from '@components/ChatConfigMenu';
 
 const SettingsMenu = () => {
   const { t } = useTranslation();
@@ -39,6 +40,7 @@ const SettingsMenu = () => {
             <ThemeSwitcher />
             <AutoTitleToggle />
             <PromptLibraryMenu />
+            <ChatConfigMenu />
           </div>
         </PopupModal>
       )}

src/constants/chat.ts

@@ -1,4 +1,5 @@
 import { ChatInterface, ConfigInterface, ModelOptions } from '@type/chat';
+import useStore from '@store/store';
 
 const date = new Date();
 const dateString =
@@ -9,7 +10,7 @@ const dateString =
   ('0' + date.getDate()).slice(-2);
 
 // default system message obtained using the following method: https://twitter.com/DeminDimin/status/1619935545144279040
-export const defaultSystemMessage = `You are ChatGPT, a large language model trained by OpenAI.
+export const _defaultSystemMessage = `You are ChatGPT, a large language model trained by OpenAI.
 Knowledge cutoff: 2021-09
 Current date: ${dateString}`;
 
@@ -35,7 +36,7 @@ export const modelMaxToken = {
 
 export const defaultUserMaxToken = 4000;
 
-export const defaultChatConfig: ConfigInterface = {
+export const _defaultChatConfig: ConfigInterface = {
   model: defaultModel,
   max_tokens: defaultUserMaxToken,
   temperature: 1,
@@ -46,8 +47,10 @@ export const defaultChatConfig: ConfigInterface = {
 
 export const generateDefaultChat = (title?: string): ChatInterface => ({
   title: title ? title : 'New Chat',
-  messages: [{ role: 'system', content: defaultSystemMessage }],
+  messages: [
-  config: { ...defaultChatConfig },
+    { role: 'system', content: useStore.getState().defaultSystemMessage },
+  ],
+  config: { ...useStore.getState().defaultChatConfig },
   titleSet: false,
 });
 

src/hooks/useSubmit.ts

@@ -4,7 +4,7 @@ import { ChatInterface, MessageInterface } from '@type/chat';
 import { getChatCompletion, getChatCompletionStream } from '@api/api';
 import { parseEventSource } from '@api/helper';
 import { limitMessageTokens } from '@utils/messageUtils';
-import { defaultChatConfig } from '@constants/chat';
+import { _defaultChatConfig } from '@constants/chat';
 
 const useSubmit = () => {
   const error = useStore((state) => state.error);
@@ -24,13 +24,13 @@ const useSubmit = () => {
       data = await getChatCompletion(
         useStore.getState().apiEndpoint,
         message,
-        defaultChatConfig
+        _defaultChatConfig
       );
     } else if (apiKey) {
       data = await getChatCompletion(
         useStore.getState().apiEndpoint,
         message,
-        defaultChatConfig,
+        _defaultChatConfig,
         apiKey
       );
     }

src/store/config-slice.ts

@@ -1,19 +1,27 @@
 import { StoreSlice } from './store';
 import { Theme } from '@type/theme';
+import { ConfigInterface } from '@type/chat';
+import { _defaultChatConfig, _defaultSystemMessage } from '@constants/chat';
 
 export interface ConfigSlice {
   openConfig: boolean;
   theme: Theme;
   autoTitle: boolean;
+  defaultChatConfig: ConfigInterface;
+  defaultSystemMessage: string;
   setOpenConfig: (openConfig: boolean) => void;
   setTheme: (theme: Theme) => void;
   setAutoTitle: (autoTitle: boolean) => void;
+  setDefaultChatConfig: (defaultChatConfig: ConfigInterface) => void;
+  setDefaultSystemMessage: (defaultSystemMessage: string) => void;
 }
 
 export const createConfigSlice: StoreSlice<ConfigSlice> = (set, get) => ({
   openConfig: false,
   theme: 'dark',
   autoTitle: false,
+  defaultChatConfig: _defaultChatConfig,
+  defaultSystemMessage: _defaultSystemMessage,
   setOpenConfig: (openConfig: boolean) => {
     set((prev: ConfigSlice) => ({
       ...prev,
@@ -32,4 +40,16 @@ export const createConfigSlice: StoreSlice<ConfigSlice> = (set, get) => ({
       autoTitle: autoTitle,
     }));
   },
+  setDefaultChatConfig: (defaultChatConfig: ConfigInterface) => {
+    set((prev: ConfigSlice) => ({
+      ...prev,
+      defaultChatConfig: defaultChatConfig,
+    }));
+  },
+  setDefaultSystemMessage: (defaultSystemMessage: string) => {
+    set((prev: ConfigSlice) => ({
+      ...prev,
+      defaultSystemMessage: defaultSystemMessage,
+    }));
+  },
 });

src/store/migrate.ts

@@ -7,7 +7,7 @@ import {
   LocalStorageInterfaceV5ToV6,
 } from '@type/chat';
 import {
-  defaultChatConfig,
+  _defaultChatConfig,
   defaultModel,
   defaultUserMaxToken,
 } from '@constants/chat';
@@ -17,7 +17,7 @@ import defaultPrompts from '@constants/prompt';
 export const migrateV0 = (persistedState: LocalStorageInterfaceV0ToV1) => {
   persistedState.chats.forEach((chat) => {
     chat.titleSet = false;
-    if (!chat.config) chat.config = { ...defaultChatConfig };
+    if (!chat.config) chat.config = { ..._defaultChatConfig };
   });
 };
 
@@ -33,8 +33,8 @@ export const migrateV2 = (persistedState: LocalStorageInterfaceV2ToV3) => {
   persistedState.chats.forEach((chat) => {
     chat.config = {
       ...chat.config,
-      top_p: defaultChatConfig.top_p,
+      top_p: _defaultChatConfig.top_p,
-      frequency_penalty: defaultChatConfig.frequency_penalty,
+      frequency_penalty: _defaultChatConfig.frequency_penalty,
     };
   });
   persistedState.autoTitle = false;

src/store/store.ts

@@ -53,6 +53,8 @@ const useStore = create<StoreState>()(
         theme: state.theme,
         autoTitle: state.autoTitle,
         prompts: state.prompts,
+        defaultChatConfig: state.defaultChatConfig,
+        defaultSystemMessage: state.defaultSystemMessage,
       }),
       version: 6,
       migrate: (persistedState, version) => {

src/utils/chat.ts

@@ -3,7 +3,7 @@ import jsPDF from 'jspdf';
 import { ChatInterface, ConfigInterface, MessageInterface } from '@type/chat';
 import { roles } from '@type/chat';
 import { Theme } from '@type/theme';
-import { defaultChatConfig } from '@constants/chat';
+import { _defaultChatConfig } from '@constants/chat';
 
 export const validateAndFixChats = (chats: any): chats is ChatInterface[] => {
   if (!Array.isArray(chats)) return false;
@@ -32,21 +32,21 @@ const validateMessage = (messages: MessageInterface[]) => {
 };
 
 const validateAndFixChatConfig = (config: ConfigInterface) => {
-  if (config === undefined) config = defaultChatConfig;
+  if (config === undefined) config = _defaultChatConfig;
   if (!(typeof config === 'object')) return false;
 
-  if (!config.temperature) config.temperature = defaultChatConfig.temperature;
+  if (!config.temperature) config.temperature = _defaultChatConfig.temperature;
   if (!(typeof config.temperature === 'number')) return false;
 
   if (!config.presence_penalty)
-    config.presence_penalty = defaultChatConfig.presence_penalty;
+    config.presence_penalty = _defaultChatConfig.presence_penalty;
   if (!(typeof config.presence_penalty === 'number')) return false;
 
-  if (!config.top_p) config.top_p = defaultChatConfig.top_p;
+  if (!config.top_p) config.top_p = _defaultChatConfig.top_p;
   if (!(typeof config.top_p === 'number')) return false;
 
   if (!config.frequency_penalty)
-    config.frequency_penalty = defaultChatConfig.frequency_penalty;
+    config.frequency_penalty = _defaultChatConfig.frequency_penalty;
   if (!(typeof config.frequency_penalty === 'number')) return false;
 
   return true;