diff --git a/CHANGELOG.md b/CHANGELOG.md
index 146c4f3d..89dc3c7f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,12 @@
 # 更新日志
 ## v4.0.8
+* 功能优化：升级 mathjax 公式解析插件，修复公式因为图片访问限制而无法显示的问题
 * 功能优化：当数据库更新失败的时候记录错误日志
 * 功能优化：聊天输入框会随着输入内容的增多自动调整高度
 * Bug修复：修复移动端聊天页面模型切换不生效的Bug
 * 功能优化：给PC端扫码支付增加签名验证和有效期验证
 * Bug修复：修复支付码生成API权限控制的问题
+* Bug修复：模型算力设置为0时，不扣减用户算力，并且不记录算力消费日志
 
 ## v4.0.7
 
diff --git a/api/handler/chatimpl/chat_handler.go b/api/handler/chatimpl/chat_handler.go
index 894a347a..c181e12b 100644
--- a/api/handler/chatimpl/chat_handler.go
+++ b/api/handler/chatimpl/chat_handler.go
@@ -462,7 +462,7 @@ func (h *ChatHandler) doRequest(ctx context.Context, req types.ApiRequest, sessi
 	}
 	// use the last unused key
 	if apiKey.Id == 0 {
-		h.DB.Debug().Where("platform", session.Model.Platform).Where("type", "chat").Where("enabled", true).Order("last_used_at ASC").First(apiKey)
+		h.DB.Where("platform", session.Model.Platform).Where("type", "chat").Where("enabled", true).Order("last_used_at ASC").First(apiKey)
 	}
 	if apiKey.Id == 0 {
 		return nil, errors.New("no available key, please import key")
@@ -655,24 +655,26 @@ func (h *ChatHandler) saveChatHistory(
 		logger.Error("failed to save reply history message: ", res.Error)
 	}
 
-	// 更新用户算力
-	h.subUserPower(userVo, session, promptToken, replyTokens)
+	if session.Model.Power > 0 {
+		// 更新用户算力
+		h.subUserPower(userVo, session, promptToken, replyTokens)
 
-	// 保存当前会话
-	var chatItem model.ChatItem
-	res = h.DB.Where("chat_id = ?", session.ChatId).First(&chatItem)
-	if res.Error != nil {
-		chatItem.ChatId = session.ChatId
-		chatItem.UserId = session.UserId
-		chatItem.RoleId = role.Id
-		chatItem.ModelId = session.Model.Id
-		if utf8.RuneCountInString(prompt) > 30 {
-			chatItem.Title = string([]rune(prompt)[:30]) + "..."
-		} else {
-			chatItem.Title = prompt
+		// 保存当前会话
+		var chatItem model.ChatItem
+		res = h.DB.Where("chat_id = ?", session.ChatId).First(&chatItem)
+		if res.Error != nil {
+			chatItem.ChatId = session.ChatId
+			chatItem.UserId = session.UserId
+			chatItem.RoleId = role.Id
+			chatItem.ModelId = session.Model.Id
+			if utf8.RuneCountInString(prompt) > 30 {
+				chatItem.Title = string([]rune(prompt)[:30]) + "..."
+			} else {
+				chatItem.Title = prompt
+			}
+			chatItem.Model = req.Model
+			h.DB.Create(&chatItem)
 		}
-		chatItem.Model = req.Model
-		h.DB.Create(&chatItem)
 	}
 }
 
diff --git a/web/.env.development b/web/.env.development
index 9811fffe..62d3b372 100644
--- a/web/.env.development
+++ b/web/.env.development
@@ -6,4 +6,4 @@ VUE_APP_ADMIN_USER=admin
 VUE_APP_ADMIN_PASS=admin123
 VUE_APP_KEY_PREFIX=ChatPLUS_DEV_
 VUE_APP_TITLE="Geek-AI 创作系统"
-VUE_APP_VERSION=v4.0.7
+VUE_APP_VERSION=v4.0.8
diff --git a/web/.env.production b/web/.env.production
index 9404e7a0..3f594239 100644
--- a/web/.env.production
+++ b/web/.env.production
@@ -2,4 +2,4 @@ VUE_APP_API_HOST=
 VUE_APP_WS_HOST=
 VUE_APP_KEY_PREFIX=ChatPLUS_
 VUE_APP_TITLE="Geek-AI 创作系统"
-VUE_APP_VERSION=v4.0.7
+VUE_APP_VERSION=v4.0.8
diff --git a/web/package.json b/web/package.json
index a38dc236..e9969bba 100644
--- a/web/package.json
+++ b/web/package.json
@@ -20,8 +20,7 @@
     "json-bigint": "^1.0.0",
     "lodash": "^4.17.21",
     "markdown-it": "^13.0.1",
-    "markdown-it-latex2img": "^0.0.6",
-    "markdown-it-mathjax": "^2.0.0",
+    "markdown-it-mathjax3": "^4.3.2",
     "markmap-common": "^0.16.0",
     "markmap-lib": "^0.16.1",
     "markmap-toolbar": "^0.17.0",
diff --git a/web/src/views/ChatPlus.vue b/web/src/views/ChatPlus.vue
index 4b9b1602..887ddf77 100644
--- a/web/src/views/ChatPlus.vue
+++ b/web/src/views/ChatPlus.vue
@@ -503,8 +503,7 @@ const removeChat = function (chat) {
 
 }
 
-const latexPlugin = require('markdown-it-latex2img')
-const mathjaxPlugin = require('markdown-it-mathjax')
+const mathjaxPlugin = require('markdown-it-mathjax3')
 const md = require('markdown-it')({
   breaks: true,
   html: true,
@@ -529,7 +528,6 @@ const md = require('markdown-it')({
     return `<pre class="code-container"><code class="language-${lang} hljs">${preCode}</code>${copyBtn}</pre>`
   }
 });
-md.use(latexPlugin)
 md.use(mathjaxPlugin)
 
 // 创建 socket 连接
diff --git a/web/src/views/admin/ChatList.vue b/web/src/views/admin/ChatList.vue
index 10292745..4da48ca6 100644
--- a/web/src/views/admin/ChatList.vue
+++ b/web/src/views/admin/ChatList.vue
@@ -163,11 +163,8 @@
               :model="item.model"
               :content="item.content"/>
           <chat-reply v-else-if="item.type==='reply'"
-                      :icon="item.icon"
-                      :org-content="item.orgContent"
-                      :created-at="dateFormat(item['created_at'])"
-                      :tokens="item['tokens']"
-                      :content="item.content"/>
+                      :read-only="true"
+                      :data="item"/>
         </div>
       </div><!-- end chat box -->
     </el-dialog>
@@ -291,8 +288,7 @@ const removeMessage = function (row) {
   })
 }
 
-const latexPlugin = require('markdown-it-latex2img')
-const mathjaxPlugin = require('markdown-it-mathjax')
+const mathjaxPlugin = require('markdown-it-mathjax3')
 const md = require('markdown-it')({
   breaks: true,
   html: true,
@@ -312,7 +308,6 @@ const md = require('markdown-it')({
     return `<pre class="code-container"><code class="language-${lang} hljs">${preCode}</code></pre>`
   }
 });
-md.use(latexPlugin)
 md.use(mathjaxPlugin)
 
 const showContentDialog = ref(false)
diff --git a/web/src/views/mobile/ChatList.vue b/web/src/views/mobile/ChatList.vue
index f31d0c27..ed4d186a 100644
--- a/web/src/views/mobile/ChatList.vue
+++ b/web/src/views/mobile/ChatList.vue
@@ -225,18 +225,6 @@ const newChat = (item) => {
   }
   showPicker.value = false
   const options = item.selectedOptions
-  // setChatConfig({
-  //   role: {
-  //     id: options[0].value,
-  //     name: options[0].text,
-  //     icon: options[0].icon,
-  //     helloMsg: options[0].helloMsg
-  //   },
-  //   model: options[1].value,
-  //   modelValue: getModelValue(options[1].value),
-  //   title: '新建会话',
-  //   chatId: 0
-  // })
   router.push({
     name: "mobile-chat-session",
     params: {role_id: options[0].value, model_id: options[1].value, title: '新建会话', chat_id: 0}
@@ -244,25 +232,6 @@ const newChat = (item) => {
 }
 
 const changeChat = (chat) => {
-  // let role = {}
-  // for (let i = 0; i < roles.value.length; i++) {
-  //   if (roles.value[i].value === chat.role_id) {
-  //     role = roles.value[i]
-  //     break
-  //   }
-  // }
-  // setChatConfig({
-  //   role: {
-  //     id: chat.role_id,
-  //     name: role.text,
-  //     icon: role.icon
-  //   },
-  //   model: chat.model_id,
-  //   modelValue: getModelValue(chat.model_id),
-  //   title: chat.title,
-  //   chatId: chat.chat_id,
-  //   helloMsg: chat.hello_msg,
-  // })
   router.push(`/mobile/chat/session?chat_id=${chat.chat_id}`)
 }
 
diff --git a/web/src/views/mobile/ChatSession.vue b/web/src/views/mobile/ChatSession.vue
index a8c0fde8..e1de43d8 100644
--- a/web/src/views/mobile/ChatSession.vue
+++ b/web/src/views/mobile/ChatSession.vue
@@ -249,8 +249,7 @@ const loading = ref(false)
 const finished = ref(false)
 const error = ref(false)
 
-const latexPlugin = require('markdown-it-latex2img')
-const mathjaxPlugin = require('markdown-it-mathjax')
+const mathjaxPlugin = require('markdown-it-mathjax3')
 const md = require('markdown-it')({
   breaks: true,
   html: true,
@@ -275,7 +274,6 @@ const md = require('markdown-it')({
     return `<pre class="code-container"><code class="language-${lang} hljs">${preCode}</code>${copyBtn}</pre>`
   }
 });
-md.use(latexPlugin)
 md.use(mathjaxPlugin)