diff --git a/service/package.json b/service/package.json
index 4b74e5a..6311f31 100644
--- a/service/package.json
+++ b/service/package.json
@@ -24,6 +24,7 @@
     "common:cleanup": "rimraf node_modules && rimraf pnpm-lock.yaml"
   },
   "dependencies": {
+    "axios": "^1.3.4",
     "chatgpt": "^5.0.10",
     "dotenv": "^16.0.3",
     "esno": "^0.16.3",
diff --git a/service/pnpm-lock.yaml b/service/pnpm-lock.yaml
index e2e251f..8e4b85e 100644
--- a/service/pnpm-lock.yaml
+++ b/service/pnpm-lock.yaml
@@ -4,6 +4,7 @@ specifiers:
   '@antfu/eslint-config': ^0.35.3
   '@types/express': ^4.17.17
   '@types/node': ^18.14.6
+  axios: ^1.3.4
   chatgpt: ^5.0.10
   dotenv: ^16.0.3
   eslint: ^8.35.0
@@ -18,6 +19,7 @@ specifiers:
   typescript: ^4.9.5
 
 dependencies:
+  axios: 1.3.4
   chatgpt: 5.0.10
   dotenv: 16.0.3
   esno: 0.16.3
@@ -766,6 +768,10 @@ packages:
       es-shim-unscopables: 1.0.0
     dev: true
 
+  /asynckit/0.4.0:
+    resolution: {integrity: sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==}
+    dev: false
+
   /atomically/2.0.1:
     resolution: {integrity: sha512-sxBhVZUFBFhqSAsYMM3X2oaUi2NVDJ8U026FsIusM8gYXls9AYs/eXzgGrufs1Qjpkxi9zunds+75QUFz+m7UQ==}
     dependencies:
@@ -778,6 +784,16 @@ packages:
     engines: {node: '>= 0.4'}
     dev: true
 
+  /axios/1.3.4:
+    resolution: {integrity: sha512-toYm+Bsyl6VC5wSkfkbbNB6ROv7KY93PEBBL6xyDczaIHasAiv4wPqQ/c4RjoQzipxRD2W5g21cOqQulZ7rHwQ==}
+    dependencies:
+      follow-redirects: 1.15.2
+      form-data: 4.0.0
+      proxy-from-env: 1.1.0
+    transitivePeerDependencies:
+      - debug
+    dev: false
+
   /balanced-match/1.0.2:
     resolution: {integrity: sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==}
     dev: true
@@ -966,6 +982,13 @@ packages:
     resolution: {integrity: sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==}
     dev: true
 
+  /combined-stream/1.0.8:
+    resolution: {integrity: sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==}
+    engines: {node: '>= 0.8'}
+    dependencies:
+      delayed-stream: 1.0.0
+    dev: false
+
   /commander/4.1.1:
     resolution: {integrity: sha512-NOKm8xhkzAjzFx8B2v5OAHT+u5pRQc2UCa2Vq9jYL/31o2wi9mxBA7LIFs3sV5VSC49z6pEhfbMULvShKj26WA==}
     engines: {node: '>= 6'}
@@ -1082,6 +1105,11 @@ packages:
       object-keys: 1.1.1
     dev: true
 
+  /delayed-stream/1.0.0:
+    resolution: {integrity: sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==}
+    engines: {node: '>=0.4.0'}
+    dev: false
+
   /depd/2.0.0:
     resolution: {integrity: sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw==}
     engines: {node: '>= 0.8'}
@@ -1852,12 +1880,31 @@ packages:
     resolution: {integrity: sha512-5nqDSxl8nn5BSNxyR3n4I6eDmbolI6WT+QqR547RwxQapgjQBmtktdP+HTBb/a/zLsbzERTONyUB5pefh5TtjQ==}
     dev: true
 
+  /follow-redirects/1.15.2:
+    resolution: {integrity: sha512-VQLG33o04KaQ8uYi2tVNbdrWp1QWxNNea+nmIB4EVM28v0hmP17z7aG1+wAkNzVq4KeXTq3221ye5qTJP91JwA==}
+    engines: {node: '>=4.0'}
+    peerDependencies:
+      debug: '*'
+    peerDependenciesMeta:
+      debug:
+        optional: true
+    dev: false
+
   /for-each/0.3.3:
     resolution: {integrity: sha512-jqYfLp7mo9vIyQf8ykW2v7A+2N4QjeCeI5+Dz9XraiO1ign81wjiH7Fb9vSOWvQfNtmSa4H2RoQTrrXivdUZmw==}
     dependencies:
       is-callable: 1.2.7
     dev: true
 
+  /form-data/4.0.0:
+    resolution: {integrity: sha512-ETEklSGi5t0QMZuiXoA/Q6vcnxcLQP5vdugSpuAyi6SVGi2clPPp+xgEhuMaHC+zGgn31Kd235W35f7Hykkaww==}
+    engines: {node: '>= 6'}
+    dependencies:
+      asynckit: 0.4.0
+      combined-stream: 1.0.8
+      mime-types: 2.1.35
+    dev: false
+
   /formdata-polyfill/4.0.10:
     resolution: {integrity: sha512-buewHzMvYL29jdeQTVILecSaZKnt/RJWjoZCF5OW60Z67/GmSLBkOFM7qh1PI3zFNtJbaZL5eQu1vLfazOwj4g==}
     engines: {node: '>=12.20.0'}
@@ -2918,6 +2965,10 @@ packages:
       ipaddr.js: 1.9.1
     dev: false
 
+  /proxy-from-env/1.1.0:
+    resolution: {integrity: sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg==}
+    dev: false
+
   /punycode/2.3.0:
     resolution: {integrity: sha512-rRV+zQD8tVFys26lAGR9WUuS4iUAngJScM+ZRSKtvl5tKeZ2t5bvdNFdNHBW9FWR4guGHlgmsZ1G7BSm2wTbuA==}
     engines: {node: '>=6'}
diff --git a/service/src/chatgpt/index.ts b/service/src/chatgpt/index.ts
index 7b20d23..b76c780 100644
--- a/service/src/chatgpt/index.ts
+++ b/service/src/chatgpt/index.ts
@@ -5,6 +5,7 @@ import { ChatGPTAPI, ChatGPTUnofficialProxyAPI } from 'chatgpt'
 import { SocksProxyAgent } from 'socks-proxy-agent'
 import { HttpsProxyAgent } from 'https-proxy-agent'
 import fetch from 'node-fetch'
+import axios from 'axios'
 import { sendResponse } from '../utils'
 import { isNotEmptyString } from '../utils/is'
 import type { ApiModel, ChatContext, ChatGPTUnofficialProxyAPIOptions, ModelConfig } from '../types'
@@ -99,14 +100,35 @@ async function chatReplyProcess(
   }
 }
 
-async function chatConfig() {
-  const reverseProxy = process.env.API_REVERSE_PROXY ?? '-'
-  const socksProxy = (process.env.SOCKS_PROXY_HOST && process.env.SOCKS_PROXY_PORT) ? (`${process.env.SOCKS_PROXY_HOST}:${process.env.SOCKS_PROXY_PORT}`) : '-'
-  const httpsProxy = (process.env.HTTPS_PROXY || process.env.ALL_PROXY) ?? '-'
+async function fetchBalance() {
+  const OPENAI_API_KEY = process.env.OPENAI_API_KEY
+  if (!isNotEmptyString(OPENAI_API_KEY))
+    return Promise.resolve('-')
 
+  try {
+    const headers = {
+      'Content-Type': 'application/json',
+      'Authorization': `Bearer ${OPENAI_API_KEY}`,
+    }
+    const response = await axios.get('https://api.openai.com/dashboard/billing/credit_grants', { headers })
+    const balance = response.data.total_available ?? 0
+    return Promise.resolve(balance.toFixed(3))
+  }
+  catch {
+    return Promise.resolve('-')
+  }
+}
+
+async function chatConfig() {
+  const balance = await fetchBalance()
+  const reverseProxy = process.env.API_REVERSE_PROXY ?? '-'
+  const httpsProxy = (process.env.HTTPS_PROXY || process.env.ALL_PROXY) ?? '-'
+  const socksProxy = (process.env.SOCKS_PROXY_HOST && process.env.SOCKS_PROXY_PORT)
+    ? (`${process.env.SOCKS_PROXY_HOST}:${process.env.SOCKS_PROXY_PORT}`)
+    : '-'
   return sendResponse<ModelConfig>({
     type: 'Success',
-    data: { apiModel, reverseProxy, timeoutMs, socksProxy, httpsProxy },
+    data: { apiModel, reverseProxy, timeoutMs, socksProxy, httpsProxy, balance },
   })
 }
 
@@ -133,6 +155,10 @@ function setupProxy(options: ChatGPTAPIOptions | ChatGPTUnofficialProxyAPIOption
   }
 }
 
+function currentModel(): ApiModel {
+  return apiModel
+}
+
 export type { ChatContext, ChatMessage }
 
-export { chatReplyProcess, chatConfig }
+export { chatReplyProcess, chatConfig, currentModel }
diff --git a/service/src/types.ts b/service/src/types.ts
index 995894c..12c8b04 100644
--- a/service/src/types.ts
+++ b/service/src/types.ts
@@ -20,6 +20,7 @@ export interface ModelConfig {
   timeoutMs?: number
   socksProxy?: string
   httpsProxy?: string
+  balance?: string
 }
 
 export type ApiModel = 'ChatGPTAPI' | 'ChatGPTUnofficialProxyAPI' | undefined
diff --git a/src/components/common/Setting/About.vue b/src/components/common/Setting/About.vue
index e6d503a..4314415 100644
--- a/src/components/common/Setting/About.vue
+++ b/src/components/common/Setting/About.vue
@@ -10,6 +10,7 @@ interface ConfigState {
   apiModel?: string
   socksProxy?: string
   httpsProxy?: string
+  balance?: string
 }
 
 const loading = ref(false)
@@ -55,6 +56,7 @@ onMounted(() => {
         </p>
       </div>
       <p>{{ $t("setting.api") }}：{{ config?.apiModel ?? '-' }}</p>
+      <p>{{ $t("setting.balance") }}：{{ config?.balance ?? '-' }}</p>
       <p>{{ $t("setting.reverseProxy") }}：{{ config?.reverseProxy ?? '-' }}</p>
       <p>{{ $t("setting.timeout") }}：{{ config?.timeoutMs ?? '-' }}</p>
       <p>{{ $t("setting.socks") }}：{{ config?.socksProxy ?? '-' }}</p>
diff --git a/src/locales/en-US.ts b/src/locales/en-US.ts
index b1b88ba..0e9e3d3 100644
--- a/src/locales/en-US.ts
+++ b/src/locales/en-US.ts
@@ -63,6 +63,7 @@ export default {
     timeout: 'Timeout',
     socks: 'Socks',
     httpsProxy: 'HTTPS Proxy',
+    balance: 'API Balance',
   },
   store: {
     local: 'Local',
diff --git a/src/locales/zh-CN.ts b/src/locales/zh-CN.ts
index 813b637..e47b850 100644
--- a/src/locales/zh-CN.ts
+++ b/src/locales/zh-CN.ts
@@ -63,6 +63,7 @@ export default {
     timeout: '超时',
     socks: 'Socks',
     httpsProxy: 'HTTPS Proxy',
+    balance: 'API余额',
   },
   store: {
     local: '本地',
diff --git a/src/locales/zh-TW.ts b/src/locales/zh-TW.ts
index 3ed65df..2b8ffda 100644
--- a/src/locales/zh-TW.ts
+++ b/src/locales/zh-TW.ts
@@ -63,6 +63,7 @@ export default {
     timeout: '逾時',
     socks: 'Socks',
     httpsProxy: 'HTTPS Proxy',
+    balance: 'API余額',
   },
   store: {
     local: '本機',