diff --git a/intel_extension_for_transformers/transformers/modeling/modeling_causal.py b/intel_extension_for_transformers/transformers/modeling/modeling_causal.py
index e090d092ad2..92686191a28 100644
--- a/intel_extension_for_transformers/transformers/modeling/modeling_causal.py
+++ b/intel_extension_for_transformers/transformers/modeling/modeling_causal.py
@@ -176,11 +176,23 @@ def from_pretrained(cls, pretrained_model_name_or_path, *model_args, **kwargs):
             if calib_func is None:
                 from datasets import load_dataset
                 from torch.utils.data import DataLoader
-                calib_dataset = load_dataset("NeelNanda/pile-10k", split="train")
+                calib_dataset = quantization_config.calib_dataset
+                calib_iters = quantization_config.calib_iters
+                calib_dataset = load_dataset(calib_dataset, split="train")
                 calib_dataset = calib_dataset.shuffle(seed=42)
 
                 def tokenize_function(examples):
-                    return quantization_config.tokenizer(examples["text"])
+                    if 'prompt' in examples:
+                        example = quantization_config.tokenizer(examples["prompt"])
+                    elif 'text' in examples:
+                        example = quantization_config.tokenizer(examples["text"])
+                    elif 'code' in examples:
+                        example = quantization_config.tokenizer(examples["code"])
+                    else:
+                        logger.error("Please check dataset prompt identifier," +
+                                     " NeelNanda/pile-10k is default used calibration dataset.")
+                        exit(0)
+                    return example
 
                 tokenized_dataset = calib_dataset.map(tokenize_function, batched=True)
                 tokenized_dataset.set_format(type="torch", columns=["input_ids"])
@@ -213,7 +225,7 @@ def default_calib_func(model):
                     past_key_values = generate_dummy_past_key_values(input_bs, model)
                     attention_mask = torch.ones(input_bs, input_len + 1)
                     attention_mask[:,0] = 0
-                    if i >= 100:
+                    if i >= calib_iters:
                         break
                     model(
                         input_ids=input_ids,
diff --git a/intel_extension_for_transformers/transformers/utils/quantization_config.py b/intel_extension_for_transformers/transformers/utils/quantization_config.py
index 512322825dc..1c590609055 100644
--- a/intel_extension_for_transformers/transformers/utils/quantization_config.py
+++ b/intel_extension_for_transformers/transformers/utils/quantization_config.py
@@ -16,28 +16,31 @@
 # limitations under the License.
 """Configs for intel extension for transformers."""
 
-from dataclasses import dataclass
-from typing import Optional, Any
+from dataclasses import dataclass, field
+from typing import Any, Optional
+
 from transformers import BitsAndBytesConfig
 
 
 @dataclass
 class WeightOnlyQuantizationConfig:
-    algorithm: str = 'RTN'
+    algorithm: str = "RTN"
     bits: int = 8
     group_size: int = -1
-    scheme: str = 'sym'
+    scheme: str = "sym"
     enable_full_range: bool = True
 
+
 @dataclass
 class AMPConfig:
-    dtype: str = 'bfloat16'    
+    dtype: str = "bfloat16"
 
 @dataclass
 class SmoothQuantConfig:
     tokenizer: Any = None
     calib_func: Any = None
+    calib_dataset: str = "NeelNanda/pile-10k"
+    calib_iters: int = 100
     alpha: float = 0.5
-    op_type_dict: dict = None  
-    excluded_precisions: dict = None
-
+    op_type_dict: dict = None
+    excluded_precisions: list = field(default_factory=list)
diff --git a/tests/test_quantization.py b/tests/test_quantization.py
index 08aa2e504bc..49031214936 100644
--- a/tests/test_quantization.py
+++ b/tests/test_quantization.py
@@ -286,6 +286,52 @@ def test_bf16_onnx(self):
                 self.assertEqual(tensor.data_type, TensorProto.BFLOAT16)
                 break
 
+    def test_quantization_for_llm(self):
+        model_name_or_path = "facebook/opt-125m"
+        tokenizer = AutoTokenizer.from_pretrained(model_name_or_path)
+        from intel_extension_for_transformers.transformers import (
+            AMPConfig,
+            WeightOnlyQuantizationConfig,
+            SmoothQuantConfig,
+            BitsAndBytesConfig
+
+        ) 
+        from intel_extension_for_transformers.transformers import AutoModelForCausalLM
+        fp32_model = AutoModelForCausalLM.from_pretrained(model_name_or_path)
+        dummy_input = fp32_model.dummy_inputs["input_ids"]
+
+        # smooth-quant
+        sq_config = SmoothQuantConfig(
+                                    tokenizer=tokenizer,  # either two of one, tokenizer or calib_func
+                                    calib_iters=5
+                                )
+        q_model = AutoModelForCausalLM.from_pretrained(model_name_or_path,
+                                                    quantization_config=sq_config
+                                                )
+        self.assertTrue(isinstance(q_model, torch.jit.ScriptModule))
+        # weight-only
+        woq_config = WeightOnlyQuantizationConfig()
+        woq_model = AutoModelForCausalLM.from_pretrained(model_name_or_path,
+                                                    quantization_config=woq_config
+                                                )
+        output = woq_model(dummy_input)
+        self.assertTrue(float(output[0][0][0][0]), -7.139640808105469)
+        # amp
+        amp_config = AMPConfig() 
+        amp_model = AutoModelForCausalLM.from_pretrained(model_name_or_path,
+                                                    quantization_config=amp_config
+                                                )
+        output = amp_model(dummy_input)
+        self.assertTrue(float(output[0][0][0][0]), -7.347761154174805)
+        
+    
+        # bitsandbytes
+        bab_config = BitsAndBytesConfig()
+        bab_model = AutoModelForCausalLM.from_pretrained(model_name_or_path,
+                                                    quantization_config=bab_config
+                                                )
+        output = bab_model(dummy_input)
+        self.assertTrue(float(output[0][0][0][0]), -7.347761154174805)
 
 if __name__ == "__main__":
     unittest.main()