diff --git a/setup.sh b/setup.sh
index 957b9d7..b444b90 100755
--- a/setup.sh
+++ b/setup.sh
@@ -41,27 +41,41 @@ if [ "$OS" = "Linux" ]; then
     RAM_GB=$(free -g | awk '/^Mem:/{print $2}')
 fi
 
-# NVIDIA GPU 감지
+# NVIDIA GPU 감지 + VRAM 확인
+VRAM_GB=0
 if command -v nvidia-smi &>/dev/null; then
     if nvidia-smi &>/dev/null; then
         HAS_NVIDIA_GPU=true
+        VRAM_MB=$(nvidia-smi --query-gpu=memory.total --format=csv,noheader,nounits 2>/dev/null | head -1)
+        VRAM_GB=$((VRAM_MB / 1024))
     fi
 fi
 
 echo "  OS:             $OS ($ARCH)"
 echo "  Apple Silicon:  $HAS_APPLE_SILICON"
 echo "  NVIDIA GPU:     $HAS_NVIDIA_GPU"
+if [ "$HAS_NVIDIA_GPU" = true ]; then
+    echo "  VRAM:           ${VRAM_GB}GB"
+fi
 echo "  RAM:            ${RAM_GB}GB"
 echo ""
 
 #--------------------------------------------------------------------
 # 방식 결정
+# - NVIDIA GPU + VRAM 20GB 이상 → vLLM
+# - NVIDIA GPU + VRAM 부족      → Ollama (GPU로는 모델 못 올림)
+# - Apple Silicon + RAM 32GB↑   → MLX
+# - Apple Silicon + RAM 부족    → Ollama
+# - 그 외                       → Ollama
 #--------------------------------------------------------------------
 SELECTED=""
 
-if [ "$HAS_NVIDIA_GPU" = true ]; then
+if [ "$HAS_NVIDIA_GPU" = true ] && [ "$VRAM_GB" -ge 20 ]; then
     SELECTED="vllm"
-    echo "  → NVIDIA GPU 감지 → vLLM 선택"
+    echo "  → NVIDIA GPU (VRAM ${VRAM_GB}GB) → vLLM 선택"
+elif [ "$HAS_NVIDIA_GPU" = true ] && [ "$VRAM_GB" -lt 20 ]; then
+    SELECTED="ollama"
+    echo "  → NVIDIA GPU 감지되었으나 VRAM ${VRAM_GB}GB (20GB 미만) → Ollama 선택"
 elif [ "$HAS_APPLE_SILICON" = true ] && [ "$RAM_GB" -ge 32 ]; then
     SELECTED="mlx"
     echo "  → Apple Silicon + RAM ${RAM_GB}GB → MLX (vllm-mlx) 선택"
@@ -73,40 +87,6 @@ else
     echo "  → 범용 환경 → Ollama 선택"
 fi
 
-echo ""
-
-#--------------------------------------------------------------------
-# 사용자 확인
-#--------------------------------------------------------------------
-read -p "  $SELECTED 방식으로 진행할까요? [Y/n] (직접 선택: o=ollama, m=mlx, v=vllm): " CONFIRM
-CONFIRM=${CONFIRM:-Y}
-
-case "$CONFIRM" in
-    [Yy]|"")
-        # 자동 선택 유지
-        ;;
-    [Oo])
-        SELECTED="ollama"
-        echo "  → Ollama로 변경"
-        ;;
-    [Mm])
-        SELECTED="mlx"
-        echo "  → MLX로 변경"
-        ;;
-    [Vv])
-        SELECTED="vllm"
-        echo "  → vLLM으로 변경"
-        ;;
-    [Nn])
-        echo "  취소됨."
-        exit 0
-        ;;
-    *)
-        echo "  알 수 없는 입력. 취소됨."
-        exit 1
-        ;;
-esac
-
 echo ""
 echo "============================================"
 echo " $SELECTED 방식으로 셋업을 시작합니다"