diff --git a/benchmarks/benchmark_serving.py b/benchmarks/benchmark_serving.py
index fb13301c4..b5dff2029 100644
--- a/benchmarks/benchmark_serving.py
+++ b/benchmarks/benchmark_serving.py
@@ -982,7 +982,7 @@ def main(args: argparse.Namespace):
         if args.result_dir:
             file_name = os.path.join(args.result_dir, file_name)
         with open(file_name, "w", encoding="utf-8") as outfile:
-            json.dump(result_json, outfile)
+            json.dump(result_json, outfile, ensure_ascii=False)
         save_to_pytorch_benchmark_format(args, result_json, file_name)
 
 
diff --git a/fastdeploy/model_executor/models/ernie4_5_vl/ernie4_5_vl_moe.py b/fastdeploy/model_executor/models/ernie4_5_vl/ernie4_5_vl_moe.py
index eed16986a..dc47107e6 100644
--- a/fastdeploy/model_executor/models/ernie4_5_vl/ernie4_5_vl_moe.py
+++ b/fastdeploy/model_executor/models/ernie4_5_vl/ernie4_5_vl_moe.py
@@ -277,7 +277,7 @@ class Ernie4_5_VLMoE(nn.Layer):
     def forward(self, hidden_states: paddle.Tensor, vl_moe_meta: VLMoEMeta):
         if self.num_shared_experts > 0:
             shared_experts_out = self.shared_experts(hidden_states)
-        hidden_states, vl_moe_meta.text_input, vl_moe_meta.image_input = text_image_gather_scatter(
+        hidden_states, text_input, image_input = text_image_gather_scatter(
             hidden_states,
             vl_moe_meta.text_input,
             vl_moe_meta.image_input,
@@ -286,8 +286,8 @@ class Ernie4_5_VLMoE(nn.Layer):
             vl_moe_meta.image_index,
             True,
         )
-        text_out = self.text_fused_moe(vl_moe_meta.text_input)
-        image_out = self.image_fused_moe(vl_moe_meta.image_input)
+        text_out = self.text_fused_moe(text_input)
+        image_out = self.image_fused_moe(image_input)
         hidden_states, _, _ = text_image_gather_scatter(
             hidden_states,
             text_out,
diff --git a/tests/e2e/test_EB_VL_Lite_sot_serving.py b/tests/e2e/test_EB_VL_Lite_sot_serving.py
new file mode 100644
index 000000000..b13eb956a
--- /dev/null
+++ b/tests/e2e/test_EB_VL_Lite_sot_serving.py
@@ -0,0 +1,450 @@
+# Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import json
+import os
+import shutil
+import signal
+import socket
+import subprocess
+import sys
+import time
+
+import openai
+import pytest
+
+# Read ports from environment variables; use default values if not set
+FD_API_PORT = int(os.getenv("FD_API_PORT", 8188))
+FD_ENGINE_QUEUE_PORT = int(os.getenv("FD_ENGINE_QUEUE_PORT", 8133))
+FD_METRICS_PORT = int(os.getenv("FD_METRICS_PORT", 8233))
+FD_CACHE_QUEUE_PORT = int(os.getenv("FD_CACHE_QUEUE_PORT", 8333))
+
+# List of ports to clean before and after tests
+PORTS_TO_CLEAN = [FD_API_PORT, FD_ENGINE_QUEUE_PORT, FD_METRICS_PORT, FD_CACHE_QUEUE_PORT]
+
+os.environ["FD_USE_MACHETE"] = "0"
+
+
+def is_port_open(host: str, port: int, timeout=1.0):
+    """
+    Check if a TCP port is open on the given host.
+    Returns True if connection succeeds, False otherwise.
+    """
+    try:
+        with socket.create_connection((host, port), timeout):
+            return True
+    except Exception:
+        return False
+
+
+def kill_process_on_port(port: int):
+    """
+    Kill processes that are listening on the given port.
+    Uses `lsof` to find process ids and sends SIGKILL.
+    """
+    try:
+        output = subprocess.check_output(f"lsof -i:{port} -t", shell=True).decode().strip()
+        current_pid = os.getpid()
+        parent_pid = os.getppid()
+        for pid in output.splitlines():
+            pid = int(pid)
+            if pid in (current_pid, parent_pid):
+                print(f"Skip killing current process (pid={pid}) on port {port}")
+                continue
+            os.kill(pid, signal.SIGKILL)
+            print(f"Killed process on port {port}, pid={pid}")
+    except subprocess.CalledProcessError:
+        pass
+
+
+def clean_ports():
+    """
+    Kill all processes occupying the ports listed in PORTS_TO_CLEAN.
+    """
+    for port in PORTS_TO_CLEAN:
+        kill_process_on_port(port)
+    time.sleep(2)
+
+
+@pytest.fixture(scope="session", autouse=True)
+def setup_and_run_server():
+    """
+    Pytest fixture that runs once per test session:
+    - Cleans ports before tests
+    - Starts the API server as a subprocess
+    - Waits for server port to open (up to 30 seconds)
+    - Tears down server after all tests finish
+    """
+    print("Pre-test port cleanup...")
+    clean_ports()
+    print("log dir clean ")
+    if os.path.exists("log") and os.path.isdir("log"):
+        shutil.rmtree("log")
+
+    base_path = os.getenv("MODEL_PATH")
+    if base_path:
+        model_path = os.path.join(base_path, "ernie-4_5-vl-28b-a3b-bf16-paddle")
+    else:
+        model_path = "./ernie-4_5-vl-28b-a3b-bf16-paddle"
+
+    log_path = "server.log"
+    limit_mm_str = json.dumps({"image": 100, "video": 100})
+
+    cmd = [
+        sys.executable,
+        "-m",
+        "fastdeploy.entrypoints.openai.api_server",
+        "--model",
+        model_path,
+        "--port",
+        str(FD_API_PORT),
+        "--tensor-parallel-size",
+        "2",
+        "--engine-worker-queue-port",
+        str(FD_ENGINE_QUEUE_PORT),
+        "--metrics-port",
+        str(FD_METRICS_PORT),
+        "--cache-queue-port",
+        str(FD_CACHE_QUEUE_PORT),
+        "--enable-mm",
+        "--max-model-len",
+        "8192",
+        "--max-num-batched-tokens",
+        "172",
+        "--max-num-seqs",
+        "64",
+        "--limit-mm-per-prompt",
+        limit_mm_str,
+        "--enable-chunked-prefill",
+        "--kv-cache-ratio",
+        "0.71",
+        "--quantization",
+        "wint4",
+        "--reasoning-parser",
+        "ernie-45-vl",
+        "--graph-optimization-config",
+        '{"graph_opt_level": 1, "use_cudagraph": true, "full_cuda_graph": false}',
+    ]
+
+    # Start subprocess in new process group
+    with open(log_path, "w") as logfile:
+        process = subprocess.Popen(
+            cmd,
+            stdout=logfile,
+            stderr=subprocess.STDOUT,
+            start_new_session=True,  # Enables killing full group via os.killpg
+        )
+
+    # Wait up to 10 minutes for API server to be ready
+    for _ in range(10 * 60):
+        if is_port_open("127.0.0.1", FD_API_PORT):
+            print(f"API server is up on port {FD_API_PORT}")
+            break
+        time.sleep(1)
+    else:
+        print("[TIMEOUT] API server failed to start in 5 minutes. Cleaning up...")
+        try:
+            os.killpg(process.pid, signal.SIGTERM)
+        except Exception as e:
+            print(f"Failed to kill process group: {e}")
+        raise RuntimeError(f"API server did not start on port {FD_API_PORT}")
+
+    yield  # Run tests
+
+    print("\n===== Post-test server cleanup... =====")
+    try:
+        os.killpg(process.pid, signal.SIGTERM)
+        print(f"API server (pid={process.pid}) terminated")
+        clean_ports()
+    except Exception as e:
+        print(f"Failed to terminate API server: {e}")
+
+
+# ==========================
+# OpenAI Client additional chat/completions test
+# ==========================
+@pytest.fixture
+def openai_client():
+    ip = "0.0.0.0"
+    service_http_port = str(FD_API_PORT)
+    client = openai.Client(
+        base_url=f"http://{ip}:{service_http_port}/v1",
+        api_key="EMPTY_API_KEY",
+    )
+    return client
+
+
+def test_non_streaming_chat_with_return_token_ids(openai_client, capsys):
+    """
+    Test return_token_ids option in non-streaming chat functionality with the local service
+    """
+    # 设定 return_token_ids
+    response = openai_client.chat.completions.create(
+        model="default",
+        messages=[
+            {"role": "system", "content": "You are a helpful AI assistant."},  # system不是必需，可选
+            {
+                "role": "user",
+                "content": [
+                    {
+                        "type": "image_url",
+                        "image_url": {
+                            "url": "https://paddlenlp.bj.bcebos.com/datasets/paddlemix/demo_images/example2.jpg",
+                            "detail": "high",
+                        },
+                    },
+                    {"type": "text", "text": "请描述图片内容"},
+                ],
+            },
+        ],
+        temperature=1,
+        max_tokens=53,
+        extra_body={"return_token_ids": True},
+        stream=False,
+    )
+    assert hasattr(response, "choices")
+    assert len(response.choices) > 0
+    assert hasattr(response.choices[0], "message")
+    assert hasattr(response.choices[0].message, "prompt_token_ids")
+    assert isinstance(response.choices[0].message.prompt_token_ids, list)
+    assert hasattr(response.choices[0].message, "completion_token_ids")
+    assert isinstance(response.choices[0].message.completion_token_ids, list)
+
+    # 不设定 return_token_ids
+    response = openai_client.chat.completions.create(
+        model="default",
+        messages=[
+            {"role": "system", "content": "You are a helpful AI assistant."},  # system不是必需，可选
+            {
+                "role": "user",
+                "content": [
+                    {
+                        "type": "image_url",
+                        "image_url": {
+                            "url": "https://paddlenlp.bj.bcebos.com/datasets/paddlemix/demo_images/example2.jpg",
+                            "detail": "high",
+                        },
+                    },
+                    {"type": "text", "text": "请描述图片内容"},
+                ],
+            },
+        ],
+        temperature=1,
+        max_tokens=53,
+        extra_body={"return_token_ids": False},
+        stream=False,
+    )
+    assert hasattr(response, "choices")
+    assert len(response.choices) > 0
+    assert hasattr(response.choices[0], "message")
+    assert hasattr(response.choices[0].message, "prompt_token_ids")
+    assert response.choices[0].message.prompt_token_ids is None
+    assert hasattr(response.choices[0].message, "completion_token_ids")
+    assert response.choices[0].message.completion_token_ids is None
+
+
+def test_streaming_chat_with_return_token_ids(openai_client, capsys):
+    """
+    Test return_token_ids option in streaming chat functionality with the local service
+    """
+    # enable return_token_ids
+    response = openai_client.chat.completions.create(
+        model="default",
+        messages=[
+            {"role": "system", "content": "You are a helpful AI assistant."},  # system不是必需，可选
+            {
+                "role": "user",
+                "content": [
+                    {
+                        "type": "image_url",
+                        "image_url": {
+                            "url": "https://paddlenlp.bj.bcebos.com/datasets/paddlemix/demo_images/example2.jpg",
+                            "detail": "high",
+                        },
+                    },
+                    {"type": "text", "text": "请描述图片内容"},
+                ],
+            },
+        ],
+        temperature=1,
+        max_tokens=53,
+        extra_body={"return_token_ids": True},
+        stream=True,
+    )
+    is_first_chunk = True
+    for chunk in response:
+        assert hasattr(chunk, "choices")
+        assert len(chunk.choices) > 0
+        assert hasattr(chunk.choices[0], "delta")
+        assert hasattr(chunk.choices[0].delta, "prompt_token_ids")
+        assert hasattr(chunk.choices[0].delta, "completion_token_ids")
+        if is_first_chunk:
+            is_first_chunk = False
+            assert isinstance(chunk.choices[0].delta.prompt_token_ids, list)
+            assert chunk.choices[0].delta.completion_token_ids is None
+        else:
+            assert chunk.choices[0].delta.prompt_token_ids is None
+            assert isinstance(chunk.choices[0].delta.completion_token_ids, list)
+
+    # disable return_token_ids
+    response = openai_client.chat.completions.create(
+        model="default",
+        messages=[
+            {"role": "system", "content": "You are a helpful AI assistant."},  # system不是必需，可选
+            {
+                "role": "user",
+                "content": [
+                    {
+                        "type": "image_url",
+                        "image_url": {
+                            "url": "https://paddlenlp.bj.bcebos.com/datasets/paddlemix/demo_images/example2.jpg",
+                            "detail": "high",
+                        },
+                    },
+                    {"type": "text", "text": "请描述图片内容"},
+                ],
+            },
+        ],
+        temperature=1,
+        max_tokens=53,
+        extra_body={"return_token_ids": False},
+        stream=True,
+    )
+    for chunk in response:
+        assert hasattr(chunk, "choices")
+        assert len(chunk.choices) > 0
+        assert hasattr(chunk.choices[0], "delta")
+        assert hasattr(chunk.choices[0].delta, "prompt_token_ids")
+        assert chunk.choices[0].delta.prompt_token_ids is None
+        assert hasattr(chunk.choices[0].delta, "completion_token_ids")
+        assert chunk.choices[0].delta.completion_token_ids is None
+
+
+def test_chat_with_thinking(openai_client, capsys):
+    """
+    Test enable_thinking & reasoning_max_tokens option in non-streaming chat functionality with the local service
+    """
+    # enable thinking, non-streaming
+    response = openai_client.chat.completions.create(
+        model="default",
+        messages=[{"role": "user", "content": "Explain gravity in a way that a five-year-old child can understand."}],
+        temperature=1,
+        stream=False,
+        max_tokens=10,
+        extra_body={"chat_template_kwargs": {"enable_thinking": True}},
+    )
+    assert response.choices[0].message.reasoning_content is not None
+
+    # disable thinking, non-streaming
+    response = openai_client.chat.completions.create(
+        model="default",
+        messages=[{"role": "user", "content": "Explain gravity in a way that a five-year-old child can understand."}],
+        temperature=1,
+        stream=False,
+        max_tokens=10,
+        extra_body={"chat_template_kwargs": {"enable_thinking": False}},
+    )
+    assert response.choices[0].message.reasoning_content is None
+    assert "</think>" not in response.choices[0].message.content
+
+    # test logic
+    reasoning_max_tokens = None
+    response = openai_client.chat.completions.create(
+        model="default",
+        messages=[{"role": "user", "content": "Explain gravity in a way that a five-year-old child can understand."}],
+        temperature=1,
+        stream=False,
+        max_tokens=20,
+        extra_body={
+            "chat_template_kwargs": {"enable_thinking": True},
+            "reasoning_max_tokens": reasoning_max_tokens,
+        },
+    )
+    assert response.choices[0].message.reasoning_content is not None
+
+    # enable thinking, streaming
+    reasoning_max_tokens = 3
+    response = openai_client.chat.completions.create(
+        model="default",
+        messages=[{"role": "user", "content": "Explain gravity in a way that a five-year-old child can understand."}],
+        temperature=1,
+        extra_body={
+            "chat_template_kwargs": {"enable_thinking": True},
+            "reasoning_max_tokens": reasoning_max_tokens,
+            "return_token_ids": True,
+        },
+        stream=True,
+        max_tokens=10,
+    )
+    completion_tokens = 1
+    reasoning_tokens = 0
+    total_tokens = 0
+    for chunk_id, chunk in enumerate(response):
+        if chunk_id == 0:  # the first chunk is an extra chunk
+            continue
+        delta_message = chunk.choices[0].delta
+        if delta_message.content != "" and delta_message.reasoning_content == "":
+            completion_tokens += len(delta_message.completion_token_ids)
+        elif delta_message.reasoning_content != "" and delta_message.content == "":
+            reasoning_tokens += len(delta_message.completion_token_ids)
+        total_tokens += len(delta_message.completion_token_ids)
+    assert completion_tokens + reasoning_tokens == total_tokens
+    assert reasoning_tokens <= reasoning_max_tokens
+
+
+def test_thinking_logic_flag(openai_client, capsys):
+    """
+    Test the interaction between token calculation logic and conditional thinking.
+    This test covers:
+    1. Default max_tokens calculation when not provided.
+    2. Capping of max_tokens when it exceeds model limits.
+    3. Default reasoning_max_tokens calculation when not provided.
+    4. Activation of thinking based on the final state of reasoning_max_tokens.
+    """
+
+    response_case_1 = openai_client.chat.completions.create(
+        model="default",
+        messages=[{"role": "user", "content": "Explain gravity briefly."}],
+        temperature=1,
+        stream=False,
+        extra_body={
+            "chat_template_kwargs": {"enable_thinking": True},
+        },
+    )
+    assert response_case_1.choices[0].message.reasoning_content is not None
+
+    response_case_2 = openai_client.chat.completions.create(
+        model="default",
+        messages=[{"role": "user", "content": "Explain gravity in a way that a five-year-old child can understand."}],
+        temperature=1,
+        stream=False,
+        max_tokens=20,
+        extra_body={
+            "chat_template_kwargs": {"enable_thinking": True},
+            "reasoning_max_tokens": 5,
+        },
+    )
+    assert response_case_2.choices[0].message.reasoning_content is not None
+
+    response_case_3 = openai_client.chat.completions.create(
+        model="default",
+        messages=[{"role": "user", "content": "Explain gravity in a way that a five-year-old child can understand."}],
+        temperature=1,
+        stream=False,
+        max_tokens=20,
+        extra_body={
+            "chat_template_kwargs": {"enable_thinking": False},
+        },
+    )
+    assert response_case_3.choices[0].message.reasoning_content is None