diff --git a/VERSION b/VERSION
index da7571a..714d7cb 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.11.5.1
+2.11.5.2
diff --git a/src/providers/gemini/antigravity-core.js b/src/providers/gemini/antigravity-core.js
index c316a6a..2cd0fd6 100644
--- a/src/providers/gemini/antigravity-core.js
+++ b/src/providers/gemini/antigravity-core.js
@@ -783,7 +783,12 @@ export class AntigravityApiService {
     }
 
     async initializeAuth(forceRefresh = false) {
-        // 检查是否需要刷新 Token
+        const credPath = this.oauthCredsFilePath || path.join(os.homedir(), CREDENTIALS_DIR, CREDENTIALS_FILE);
+        
+        // 首先执行基础凭证加载
+        await this.loadCredentials();
+
+        // 检查是否需要刷新 Token（在加载凭证后重新评估）
         const needsRefresh = forceRefresh || this.isTokenExpiringSoon();
 
         if (this.authClient.credentials.access_token && !needsRefresh) {
@@ -791,11 +796,6 @@ export class AntigravityApiService {
             return;
         }
 
-        const credPath = this.oauthCredsFilePath || path.join(os.homedir(), CREDENTIALS_DIR, CREDENTIALS_FILE);
-        
-        // 首先执行基础凭证加载
-        await this.loadCredentials();
-
         // 只有在明确要求刷新，或者 AccessToken 确实缺失时，才执行刷新/认证
         // 注意：在 V2 架构下，此方法主要由 PoolManager 的后台队列调用
         if (needsRefresh || !this.authClient.credentials.access_token) {
@@ -1484,8 +1484,12 @@ export class AntigravityApiService {
                             
                             // 遍历模型数据，提取配额信息
                             for (const [modelId, modelData] of Object.entries(modelsData)) {
-                                const aliasName = modelName2Alias(modelId);
-                                if (aliasName == null || aliasName === '') continue; // 跳过不支持的模型
+                                // 参考 fetchAvailableModels 的逻辑修复 modelName2Alias 不存在的问题
+                                if (!modelId || (!ANTIGRAVITY_MODELS.includes(modelId) && !modelId.startsWith('claude-'))) {
+                                    continue;
+                                }
+
+                                const aliasName = modelId.startsWith('claude-') ? `gemini-${modelId}` : modelId;
                                 
                                 const modelInfo = {
                                     remaining: 0,
diff --git a/src/providers/gemini/gemini-core.js b/src/providers/gemini/gemini-core.js
index aa5690a..7a497ca 100644
--- a/src/providers/gemini/gemini-core.js
+++ b/src/providers/gemini/gemini-core.js
@@ -351,17 +351,17 @@ export class GeminiApiService {
     }
 
     async initializeAuth(forceRefresh = false) {
-        // 检查是否需要刷新 Token
-        const needsRefresh = forceRefresh
+        // 首先执行基础凭证加载
+        await this.loadCredentials();
+
+        // 检查是否需要刷新 Token（加载凭证后评估）
+        const needsRefresh = forceRefresh || this.isTokenExpiringSoon();
 
         if (this.authClient.credentials.access_token && !needsRefresh) {
             // Token 有效且不需要刷新
             return;
         }
 
-        // 首先执行基础凭证加载
-        await this.loadCredentials();
-
         // 只有在明确要求刷新，或者 AccessToken 确实缺失时，才执行刷新/认证
         // 注意：在 V2 架构下，此方法主要由 PoolManager 的后台队列调用
         if (needsRefresh || !this.authClient.credentials.access_token) {
@@ -811,6 +811,17 @@ export class GeminiApiService {
         }
     }
 
+    isTokenExpiringSoon() {
+        if (!this.authClient.credentials.expiry_date) {
+            return false;
+        }
+        const currentTime = Date.now();
+        const expiryTime = this.authClient.credentials.expiry_date;
+        const REFRESH_SKEW = 3000; // 50分钟
+        const refreshSkewMs = REFRESH_SKEW * 1000;
+        return expiryTime <= (currentTime + refreshSkewMs);
+    }
+
     /**
      * 保存凭证到文件
      * @param {string} filePath - 凭证文件路径