diff --git a/llmc/eval/eval_custom_generate_just_infer.py b/llmc/eval/eval_custom_generate_just_infer.py
index 658de5e2..5a720103 100644
--- a/llmc/eval/eval_custom_generate_just_infer.py
+++ b/llmc/eval/eval_custom_generate_just_infer.py
@@ -1,14 +1,8 @@
-import glob
 import json
 import os
 
 import torch
-from human_eval.data import stream_jsonl, write_jsonl
-from human_eval.evaluation import evaluate_functional_correctness
 from loguru import logger
-from tqdm import tqdm
-
-from .eval_base import BaseEval
 
 
 class CustomGenerateJustInfer:
@@ -29,8 +23,45 @@ def eval(self, model, eval_pos=None):
             self.eval_cfg
         )
 
-        with open(os.path.join('custom_samples_ans.json'), 'w') as f:
+        self.eval_answer(custom_samples_ans)
+
+        with open(os.path.join(self.config.save.save_path), 'w') as f:
             json.dump(custom_samples_ans, f, indent=4)
 
         torch.cuda.empty_cache()
         return 'custom gen done.'
+
+    def eval_answer(self, data):
+        T1V = 0
+        T1V_T2V = 0
+
+        def create_pairs(lst):
+            return [(lst[i], lst[i + 1]) for i in range(0, len(lst), 2)]
+
+        def check_acc(gt, answer, turn):
+            if gt[turn].lower() in answer[turn].lower():
+                return True
+            return False
+
+        pair_data = create_pairs(data)
+
+        for idx, item in enumerate(pair_data):
+            assert item[0]['image'] == item[1]['image']
+
+            pair1 = item[0]
+            pair2 = item[1]
+
+            if check_acc(pair1['gt'], pair1['answer'], 0):
+                T1V += 1
+                if check_acc(pair2['gt'], pair2['answer'], 1):
+                    T1V_T2V += 1
+                assert pair1['question'][0] == pair2['question'][1]
+
+            if check_acc(pair2['gt'], pair2['answer'], 0):
+                T1V += 1
+                if check_acc(pair1['gt'], pair1['answer'], 1):
+                    T1V_T2V += 1
+                assert pair2['question'][0] == pair1['question'][1]
+
+        logger.info(f'CustomGenerateJustInfer T1V: {T1V}, T1V_T2V: {T1V_T2V}')
+        logger.info(f'CustomGenerateJustInfer Possibility: {T1V_T2V / T1V}')