diff --git a/apps/api/models.json b/apps/api/models.json
index ebc953181..a4251abd7 100644
--- a/apps/api/models.json
+++ b/apps/api/models.json
@@ -119,11 +119,11 @@
         "temperature": 0.0,
         "max_tokens": 1024
       },
-      "timeout_seconds": 60,
+      "timeout_seconds": 30,
       "cost": {
         "per_1k_tokens": 0,
         "currency": "USD",
-        "notes": "Free tier (2026-03-29)"
+        "notes": "Free tier (2026-03-29) - timeout 30s，失敗後轉 Gemini"
       },
       "auth": {
         "type": "header",
diff --git a/apps/api/src/services/nvidia_provider.py b/apps/api/src/services/nvidia_provider.py
index c820849b6..0de045605 100644
--- a/apps/api/src/services/nvidia_provider.py
+++ b/apps/api/src/services/nvidia_provider.py
@@ -117,8 +117,9 @@ NVIDIA_API_URL = "https://integrate.api.nvidia.com/v1/chat/completions"
 # 預設模型 (2026-03-31 ogt: 恢復為 nemotron-mini-4b-instruct)
 NVIDIA_DEFAULT_MODEL = "nvidia/nemotron-mini-4b-instruct"
 
-# 請求超時 (秒) - Nemotron 延遲 11-45s
-NVIDIA_TIMEOUT = 60.0
+# 請求超時 (秒) - 2026-04-01 ogt: 30s 讓 Nemo 有機會回應，失敗後轉 Gemini
+# 原 60s 太長；15s 太短 (Nemo 有時需 20-40s)；30s 是實用平衡點
+NVIDIA_TIMEOUT = 30.0
 
 # 重試次數
 MAX_RETRIES = 2
diff --git a/k8s/awoooi-prod/04-configmap.yaml b/k8s/awoooi-prod/04-configmap.yaml
index dc5631be1..1d7b9909e 100644
--- a/k8s/awoooi-prod/04-configmap.yaml
+++ b/k8s/awoooi-prod/04-configmap.yaml
@@ -35,9 +35,9 @@ data:
   CORS_ORIGINS: '["https://awoooi.wooo.work","http://localhost:3000","http://localhost:3001"]'
 
   # AI 配置 (JSON array 格式 for pydantic-settings)
-  # 2026-04-01 ogt: Gemini 優先 (快速，~100ms) → Ollama(本地備援) → NVIDIA(60s timeout，降為最後)
-  # NVIDIA 降序原因: free tier 固定 60s timeout，阻塞整條 fallback 鏈
-  AI_FALLBACK_ORDER: '["gemini","ollama","nvidia","claude"]'
+  # 2026-04-01 ogt: NVIDIA 第一 (免費) → Gemini(備援 ~100ms) → Ollama(本地) → Claude
+  # NVIDIA timeout 降為 15s，快速失敗後轉 Gemini，避免免費 tier 阻塞整條鏈
+  AI_FALLBACK_ORDER: '["nvidia","gemini","ollama","claude"]'
   AI_CACHE_TTL: "3600"
 
   # ============================================================================
@@ -45,7 +45,7 @@ data:
   # 2026-03-31 ogt: 統帥需求 - @tsenyangbot 對話 + Incident 雙軌
   # ============================================================================
   ENABLE_NEMOTRON_COLLABORATION: "true"
-  NEMOTRON_TIMEOUT_SECONDS: "45"
+  NEMOTRON_TIMEOUT_SECONDS: "30"
   NEMOTRON_ASYNC_UPDATE: "true"
 
   # ============================================================================