diff --git a/probe_model_shapes.sh b/probe_model_shapes.sh
new file mode 100755
index 00000000..2633a063
--- /dev/null
+++ b/probe_model_shapes.sh
@@ -0,0 +1,48 @@
+#!/bin/bash
+set -e
+
+echo "=== 模型权重实际shape ==="
+python3 -c "
+import torch, os, json
+# 读config.json
+cfg_path = '/model/config.json'
+if os.path.exists(cfg_path):
+    with open(cfg_path) as f:
+        cfg = json.load(f)
+    print('Model config:')
+    for k in ['hidden_size', 'intermediate_size', 'num_attention_heads', 
+              'num_key_value_heads', 'num_hidden_layers', 'num_experts',
+              'num_experts_per_tok', 'moe_intermediate_size', 'vocab_size',
+              'max_position_embeddings']:
+        print(f'  {k}: {cfg.get(k, \"N/A\")}')
+else:
+    print(f'{cfg_path} not found')
+    # 搜索
+    import glob
+    for p in glob.glob('/model/**/config.json', recursive=True):
+        print(f'  found: {p}')
+"
+
+echo ""
+echo "=== safetensor权重shape（第一个shard）==="
+python3 -c "
+from safetensors import safe_open
+import glob, os
+shards = sorted(glob.glob('/model/model*.safetensors'))
+if not shards:
+    shards = sorted(glob.glob('/model/*.safetensors'))
+if shards:
+    print(f'Found {len(shards)} shards, reading first: {shards[0]}')
+    with safe_open(shards[0], framework='pt') as f:
+        for key in sorted(f.keys()):
+            if 'experts' in key and ('w1' in key or 'w2' in key or 'w13' in key):
+                print(f'  {key}: {f.get_tensor(key).shape}')
+                break  # 只看一个就够了
+        # 也看gate
+        for key in sorted(f.keys()):
+            if 'gate' in key and 'weight' in key:
+                print(f'  {key}: {f.get_tensor(key).shape}')
+                break
+else:
+    print('No safetensor shards found')
+" 2>&1 || echo "safetensors not available"