diff --git a/client/src/components/Endpoints/OpenAI/Settings.jsx b/client/src/components/Endpoints/OpenAI/Settings.jsx
index a6df2e92a1..e011ab749e 100644
--- a/client/src/components/Endpoints/OpenAI/Settings.jsx
+++ b/client/src/components/Endpoints/OpenAI/Settings.jsx
@@ -20,7 +20,7 @@ import store from '~/store';
 
 function Settings(props) {
   const { readonly, model, chatGptLabel, promptPrefix, temperature, topP, freqP, presP, setOption } = props;
-  console.log(props);
+
   const endpointsConfig = useRecoilValue(store.endpointsConfig);
 
   const setModel = setOption('model');
@@ -295,7 +295,7 @@ function Settings(props) {
                   id="pres-penalty-int"
                   disabled={readonly}
                   value={presP}
-                  onChange={e => setPresP(e.target.value)}
+                  onChange={value => setPresP(value)}
                   max={2}
                   min={-2}
                   step={0.01}
diff --git a/client/src/utils/cleanupPreset.js b/client/src/utils/cleanupPreset.js
index bb63c6180c..726068ea35 100644
--- a/client/src/utils/cleanupPreset.js
+++ b/client/src/utils/cleanupPreset.js
@@ -5,45 +5,45 @@ const cleanupPreset = _preset => {
   if (endpoint === 'azureOpenAI' || endpoint === 'openAI') {
     preset = {
       endpoint,
-      presetId: _preset?.presetId || null,
-      model: _preset?.model || 'gpt-3.5-turbo',
-      chatGptLabel: _preset?.chatGptLabel || null,
-      promptPrefix: _preset?.promptPrefix || null,
-      temperature: _preset?.temperature || 1,
-      top_p: _preset?.top_p || 1,
-      presence_penalty: _preset?.presence_penalty || 0,
-      frequency_penalty: _preset?.frequency_penalty || 0,
-      title: _preset?.title || 'New Preset'
+      presetId: _preset?.presetId ?? null,
+      model: _preset?.model ?? 'gpt-3.5-turbo',
+      chatGptLabel: _preset?.chatGptLabel ?? null,
+      promptPrefix: _preset?.promptPrefix ?? null,
+      temperature: _preset?.temperature ?? 1,
+      top_p: _preset?.top_p ?? 1,
+      presence_penalty: _preset?.presence_penalty ?? 0,
+      frequency_penalty: _preset?.frequency_penalty ?? 0,
+      title: _preset?.title ?? 'New Preset'
     };
   } else if (endpoint === 'bingAI') {
     preset = {
       endpoint,
-      presetId: _preset?.presetId || null,
-      jailbreak: _preset?.jailbreak || false,
-      context: _preset?.context || null,
-      systemMessage: _preset?.systemMessage || null,
-      toneStyle: _preset?.toneStyle || 'fast',
-      title: _preset?.title || 'New Preset'
+      presetId: _preset?.presetId ?? null,
+      jailbreak: _preset?.jailbreak ?? false,
+      context: _preset?.context ?? null,
+      systemMessage: _preset?.systemMessage ?? null,
+      toneStyle: _preset?.toneStyle ?? 'fast',
+      title: _preset?.title ?? 'New Preset'
     };
   } else if (endpoint === 'chatGPTBrowser') {
     preset = {
       endpoint,
-      presetId: _preset?.presetId || null,
-      model: _preset?.model || 'Default (GPT-3.5)',
-      title: _preset?.title || 'New Preset'
+      presetId: _preset?.presetId ?? null,
+      model: _preset?.model ?? 'Default (GPT-3.5)',
+      title: _preset?.title ?? 'New Preset'
     };
   } else if (endpoint === null) {
     preset = {
       endpoint,
       presetId: _preset?.presetId || null,
-      title: _preset?.title || 'New Preset'
+      title: _preset?.title ?? 'New Preset'
     };
   } else {
     console.error(`Unknown endpoint ${endpoint}`);
     preset = {
       endpoint: null,
-      presetId: _preset?.presetId || null,
-      title: _preset?.title || 'New Preset'
+      presetId: _preset?.presetId ?? null,
+      title: _preset?.title ?? 'New Preset'
     };
   }
 
diff --git a/client/src/utils/getDefaultConversation.js b/client/src/utils/getDefaultConversation.js
index 6774eeaa3a..cb6f4a04ee 100644
--- a/client/src/utils/getDefaultConversation.js
+++ b/client/src/utils/getDefaultConversation.js
@@ -3,23 +3,23 @@ const buildDefaultConversation = ({ conversation, endpoint, lastConversationSetu
     conversation = {
       ...conversation,
       endpoint,
-      model: lastConversationSetup?.model || 'gpt-3.5-turbo',
-      chatGptLabel: lastConversationSetup?.chatGptLabel || null,
-      promptPrefix: lastConversationSetup?.promptPrefix || null,
-      temperature: lastConversationSetup?.temperature || 1,
-      top_p: lastConversationSetup?.top_p || 1,
-      presence_penalty: lastConversationSetup?.presence_penalty || 0,
-      frequency_penalty: lastConversationSetup?.frequency_penalty || 0
+      model: lastConversationSetup?.model ?? 'gpt-3.5-turbo',
+      chatGptLabel: lastConversationSetup?.chatGptLabel ?? null,
+      promptPrefix: lastConversationSetup?.promptPrefix ?? null,
+      temperature: lastConversationSetup?.temperature ?? 1,
+      top_p: lastConversationSetup?.top_p ?? 1,
+      presence_penalty: lastConversationSetup?.presence_penalty ?? 0,
+      frequency_penalty: lastConversationSetup?.frequency_penalty ?? 0
     };
   } else if (endpoint === 'bingAI') {
     conversation = {
       ...conversation,
       endpoint,
-      jailbreak: lastConversationSetup?.jailbreak || false,
-      context: lastConversationSetup?.context || null,
-      systemMessage: lastConversationSetup?.systemMessage || null,
-      toneStyle: lastConversationSetup?.toneStyle || 'fast',
-      jailbreakConversationId: lastConversationSetup?.jailbreakConversationId || null,
+      jailbreak: lastConversationSetup?.jailbreak ?? false,
+      context: lastConversationSetup?.context ?? null,
+      systemMessage: lastConversationSetup?.systemMessage ?? null,
+      toneStyle: lastConversationSetup?.toneStyle ?? 'fast',
+      jailbreakConversationId: lastConversationSetup?.jailbreakConversationId ?? null,
       conversationSignature: null,
       clientId: null,
       invocationId: 1
@@ -28,7 +28,7 @@ const buildDefaultConversation = ({ conversation, endpoint, lastConversationSetu
     conversation = {
       ...conversation,
       endpoint,
-      model: lastConversationSetup?.model || 'Default (GPT-3.5)'
+      model: lastConversationSetup?.model ?? 'Default (GPT-3.5)'
     };
   } else if (endpoint === null) {
     conversation = {
diff --git a/client/src/utils/handleSubmit.js b/client/src/utils/handleSubmit.js
index b598dddf92..f7ac799a74 100644
--- a/client/src/utils/handleSubmit.js
+++ b/client/src/utils/handleSubmit.js
@@ -27,32 +27,32 @@ const useMessageHandler = () => {
     if (endpoint === 'azureOpenAI' || endpoint === 'openAI') {
       endpointOption = {
         endpoint,
-        model: currentConversation?.model || 'gpt-3.5-turbo',
-        chatGptLabel: currentConversation?.chatGptLabel || null,
-        promptPrefix: currentConversation?.promptPrefix || null,
-        temperature: currentConversation?.temperature || 1,
-        top_p: currentConversation?.top_p || 1,
-        presence_penalty: currentConversation?.presence_penalty || 0,
-        frequency_penalty: currentConversation?.frequency_penalty || 0
+        model: currentConversation?.model ?? 'gpt-3.5-turbo',
+        chatGptLabel: currentConversation?.chatGptLabel ?? null,
+        promptPrefix: currentConversation?.promptPrefix ?? null,
+        temperature: currentConversation?.temperature ?? 1,
+        top_p: currentConversation?.top_p ?? 1,
+        presence_penalty: currentConversation?.presence_penalty ?? 0,
+        frequency_penalty: currentConversation?.frequency_penalty ?? 0
       };
-      responseSender = endpointOption.chatGptLabel || 'ChatGPT';
+      responseSender = endpointOption.chatGptLabel ?? 'ChatGPT';
     } else if (endpoint === 'bingAI') {
       endpointOption = {
         endpoint,
-        jailbreak: currentConversation?.jailbreak || false,
-        systemMessage: currentConversation?.systemMessage || null,
-        context: currentConversation?.context || null,
-        toneStyle: currentConversation?.toneStyle || 'fast',
-        jailbreakConversationId: currentConversation?.jailbreakConversationId || null,
-        conversationSignature: currentConversation?.conversationSignature || null,
-        clientId: currentConversation?.clientId || null,
-        invocationId: currentConversation?.invocationId || 1
+        jailbreak: currentConversation?.jailbreak ?? false,
+        systemMessage: currentConversation?.systemMessage ?? null,
+        context: currentConversation?.context ?? null,
+        toneStyle: currentConversation?.toneStyle ?? 'fast',
+        jailbreakConversationId: currentConversation?.jailbreakConversationId ?? null,
+        conversationSignature: currentConversation?.conversationSignature ?? null,
+        clientId: currentConversation?.clientId ?? null,
+        invocationId: currentConversation?.invocationId ?? 1
       };
       responseSender = endpointOption.jailbreak ? 'Sydney' : 'BingAI';
     } else if (endpoint === 'chatGPTBrowser') {
       endpointOption = {
         endpoint,
-        model: currentConversation?.model || 'Default (GPT-3.5)'
+        model: currentConversation?.model ?? 'Default (GPT-3.5)'
       };
       responseSender = 'ChatGPT';
     } else if (endpoint === null) {