diff --git a/.env b/.env
index 51a1bd1..4c48eb6 100644
--- a/.env
+++ b/.env
@@ -13,8 +13,8 @@ MODEL_PRIMARY=deepseek-chat
 
 OPENAI_API_KEY=sk-proj-FEb2ChHZK5Llm0tBkmNIT3BlbkFJbu0b0zQpTW8762yD6HDv
 OPENAI_BASE_URL=http://113.192.49.54:9080/v1
-OPENAI_MODEL=gpt-5.4
-# OPENAI_CHAT_MODEL=gpt-4o-mini
+OPENAI_MODEL=gpt-4o-mini
+# OPENAI_CHAT_MODEL=
 
 # 模型配置
 # 主生成模型
diff --git a/__pycache__/api_server.cpython-312.pyc b/__pycache__/api_server.cpython-312.pyc
index 0b55948..b190960 100644
Binary files a/__pycache__/api_server.cpython-312.pyc and b/__pycache__/api_server.cpython-312.pyc differ
diff --git a/api_server.py b/api_server.py
index ffecb31..bb1311b 100644
--- a/api_server.py
+++ b/api_server.py
@@ -275,6 +275,36 @@ def _conversation_nl_dict(reply: str) -> Dict[str, Any]:
     }
 
 
+def _effective_llm_route_from_request(request: NLChatRequest) -> Dict[str, Any]:
+    """
+    计算“本次请求实际使用的 LLM 路由信息”（用于前端联调回显）。
+    注意：此处仅回显路由结果，不包含密钥等敏感信息。
+    """
+    model = _normalize_model_label(request.model)
+    sc = _infer_service_code(request.service_code, model)
+
+    sc2 = sc
+    if sc2 == "deepseek" and not _has_deepseek_key():
+        if _has_openai_key():
+            sc2 = "openai"
+    if sc2 == "openai" and not _has_openai_key():
+        if _has_deepseek_key():
+            sc2 = "deepseek"
+
+    # 与 _maybe_override_orch_llm 保持一致：网关不兼容时丢弃 model 覆盖，让下游走默认模型
+    effective_model = model
+    if effective_model is not None:
+        if (sc2 or "").strip().lower() == "openai" and "deepseek" in effective_model.strip().lower():
+            effective_model = None
+        elif (sc2 or "").strip().lower() == "deepseek" and effective_model.strip().lower().startswith("gpt"):
+            effective_model = None
+
+    return {
+        "service_code": sc2,
+        "model": effective_model,
+    }
+
+
 def _normalize_lang_code(code: Optional[str]) -> str:
     raw = (code or "auto").strip()
     if not raw:
@@ -670,6 +700,7 @@ async def _chat_stream_events(request: NLChatRequest) -> AsyncIterator[bytes]:
         async for pkt in _sse_stream_text_chunks("chat", reply):
             yield pkt
         data_dict = _conversation_nl_dict(reply)
+        data_dict["llm"] = _effective_llm_route_from_request(request)
         yield _sse_data({"code": 200, "msg": "success", "data": data_dict})
         await _append_session_if_needed(request, text, data_dict)
         return
@@ -760,6 +791,7 @@ async def _chat_stream_events(request: NLChatRequest) -> AsyncIterator[bytes]:
         pass
 
     data_dict = _nl_dict_from_generation(result)
+    data_dict["llm"] = _effective_llm_route_from_request(request)
     msg = "success" if result.valid else "partial"
     yield _sse_data({"code": 200, "msg": msg, "data": data_dict})
     await _append_session_if_needed(request, text, data_dict)
@@ -846,6 +878,7 @@ async def nl_chat(request: NLChatRequest):
                 reply = _localized_conversation_reply(lang)
             logger.info("[API/chat] 对话意图: conversation（跳过 Text2SQL）")
             data_dict = _conversation_nl_dict(reply)
+            data_dict["llm"] = _effective_llm_route_from_request(request)
             await _append_session_if_needed(request, text, data_dict)
             return {"code": 200, "msg": "success", "data": data_dict}
 
@@ -866,6 +899,7 @@ async def nl_chat(request: NLChatRequest):
             pass
 
         data_dict = _nl_dict_from_generation(result)
+        data_dict["llm"] = _effective_llm_route_from_request(request)
         response_data = NLChatSuccessData.model_validate(data_dict)
         msg = "success" if result.valid else "partial"
         if result.valid:
diff --git a/logs/text2sql_api.log b/logs/text2sql_api.log
index 7874c56..087ce80 100644
--- a/logs/text2sql_api.log
+++ b/logs/text2sql_api.log
@@ -105,3 +105,71 @@ ORDER BY m.ValueDate;
 2026-04-16 13:48:13 INFO    [agents.orchestrator] orchestrator.py:754 _validate_sql() | [validate] 程序+探针+LLM 汇总: valid=True err_count=0 warn_count=0 db_execution_status=0 sql_chars=494
 2026-04-16 13:48:13 INFO    [agents.orchestrator] orchestrator.py:921 generate() | [OK] SQL生成与验证通过（1次尝试）
 2026-04-16 13:48:13 INFO    [__main__] api_server.py:776 _chat_stream_events() | [API/stream] Text2SQL 完成: valid=True attempts=1 tables_used=['TSBTransferInstruction', 'VSBTransferInstruction', 'VSBHKRpt0431', 'VSBHKRpt0430', 'TSBAccountInstrumentMovement'] sql_chars=494 sql_head="-- 查询所有客户账户间股票转移记录\n-- 使用 TSBAccountInstrumentMovement，MovementType='T' 表示账户间转移\nSELECT \n    m.MovementID,\n    m.AccountID AS FromAccountID,\n    m.TransferToAccountID,\n    m.InstrumentID,\n    i.Name AS InstrumentSymbol,\n    m.MovementType,\n    m.Quantity AS TransferQuantity,\n    m.ValueDate AS TransferDate\nFROM TSBAccountInstrumentMovement m\nLEFT JOIN MCInstrument i ON m.InstrumentID = i.InstrumentID\nWHERE m.MovementType = 'T'\n  AND m.ValueDate = CAST(GETDATE() AS DATE)\nORDER BY m.ValueDate;"
+2026-04-16 14:40:07 INFO    [uvicorn.access] httptools_impl.py:483 send() | 192.168.3.210:53090 - "POST /g3sb/api/nl/chat/stream HTTP/1.1" 200
+2026-04-16 14:50:35 INFO    [__main__] api_server.py:668 _chat_stream_events() | [API/stream] 开始: user_id='ACCOUNT' visitor_biz_id=None session_id='a68b69c0-d945-4553-869f-3538d42900f9' service_code='openai' model=None lang_code='zh' msg_chars=3 preview='123' dialog_context_chars=0 last_turn_was_data_query=False
+2026-04-16 14:50:38 INFO    [llm.openai_client] openai_client.py:55 __init__() | [OK] OpenAIClient初始化: model=gpt-5.4, base_url=http://113.192.49.54:9080/v1
+2026-04-16 14:50:38 INFO    [uvicorn.error] server.py:272 shutdown() | Shutting down
+2026-04-16 14:50:38 ERROR   [asyncio] base_events.py:1820 default_exception_handler() | Exception in callback BaseProactorEventLoop._start_serving.<locals>.loop(<_OverlappedF...210', 55004))>) at D:\conda\Lib\asyncio\proactor_events.py:843
+handle: <Handle BaseProactorEventLoop._start_serving.<locals>.loop(<_OverlappedF...210', 55004))>) at D:\conda\Lib\asyncio\proactor_events.py:843>
+Traceback (most recent call last):
+  File "D:\conda\Lib\asyncio\events.py", line 88, in _run
+    self._context.run(self._callback, *self._args)
+  File "D:\conda\Lib\asyncio\proactor_events.py", line 858, in loop
+    self._make_socket_transport(
+  File "D:\conda\Lib\asyncio\proactor_events.py", line 647, in _make_socket_transport
+    return _ProactorSocketTransport(self, sock, protocol, waiter,
+           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "D:\conda\Lib\asyncio\proactor_events.py", line 613, in __init__
+    super().__init__(loop, sock, protocol, waiter, extra, server)
+  File "D:\conda\Lib\asyncio\proactor_events.py", line 189, in __init__
+    super().__init__(loop, sock, protocol, waiter, extra, server)
+  File "D:\conda\Lib\asyncio\proactor_events.py", line 335, in __init__
+    super().__init__(*args, **kw)
+  File "D:\conda\Lib\asyncio\proactor_events.py", line 66, in __init__
+    self._server._attach()
+  File "D:\conda\Lib\asyncio\base_events.py", line 296, in _attach
+    assert self._sockets is not None
+           ^^^^^^^^^^^^^^^^^^^^^^^^^
+AssertionError
+2026-04-16 14:50:38 INFO    [uvicorn.error] server.py:102 _serve() | Finished server process [37328]
+2026-04-16 14:50:38 ERROR   [uvicorn.error] on.py:134 send() | Traceback (most recent call last):
+  File "D:\conda\Lib\asyncio\runners.py", line 194, in run
+    return runner.run(main)
+           ^^^^^^^^^^^^^^^^
+  File "D:\conda\Lib\asyncio\runners.py", line 118, in run
+    return self._loop.run_until_complete(task)
+           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "D:\conda\Lib\asyncio\base_events.py", line 674, in run_until_complete
+    self.run_forever()
+  File "D:\conda\Lib\asyncio\windows_events.py", line 322, in run_forever
+    super().run_forever()
+  File "D:\conda\Lib\asyncio\base_events.py", line 641, in run_forever
+    self._run_once()
+  File "D:\conda\Lib\asyncio\base_events.py", line 1986, in _run_once
+    handle._run()
+  File "D:\conda\Lib\asyncio\events.py", line 88, in _run
+    self._context.run(self._callback, *self._args)
+  File "C:\Users\24019\AppData\Roaming\Python\Python312\site-packages\uvicorn\server.py", line 78, in serve
+    with self.capture_signals():
+         ^^^^^^^^^^^^^^^^^^^^^^
+  File "D:\conda\Lib\contextlib.py", line 144, in __exit__
+    next(self.gen)
+  File "C:\Users\24019\AppData\Roaming\Python\Python312\site-packages\uvicorn\server.py", line 339, in capture_signals
+    signal.raise_signal(captured_signal)
+  File "D:\conda\Lib\asyncio\runners.py", line 157, in _on_sigint
+    raise KeyboardInterrupt()
+KeyboardInterrupt
+
+During handling of the above exception, another exception occurred:
+
+Traceback (most recent call last):
+  File "C:\Users\24019\AppData\Roaming\Python\Python312\site-packages\starlette\routing.py", line 645, in lifespan
+    await receive()
+  File "C:\Users\24019\AppData\Roaming\Python\Python312\site-packages\uvicorn\lifespan\on.py", line 137, in receive
+    return await self.receive_queue.get()
+           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  File "D:\conda\Lib\asyncio\queues.py", line 158, in get
+    await getter
+asyncio.exceptions.CancelledError
+
+2026-04-16 14:50:43 INFO    [utils.dialog_classifier] dialog_classifier.py:211 _classify_dialog_llm() | [dialog] intent=conversation (LLM) reply_chars=51 reply_preview='请具体说明你想查询什么数据，例如时间范围、品种、账户或指标。仅输入“123”我还无法判断你的查询需求。'