400 Input tokens exceed the configured limit

[jinyangxu]

2025-11-28 11:20:18,916 - src.graph.nodes - ERROR - Full traceback:
Traceback (most recent call last):
File "d:\code\test_code\deer-flow\src\graph\nodes.py", line 978, in execute_agent_step
result = await agent.ainvoke(
^^^^^^^^^^^^^^^^^^^^
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\langgraph\pregel_init.py", line 2892, in ainvoke
async for chunk in self.astream(
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\langgraph\pregel_init_.py", line 2759, in astream
async for _ in runner.atick(
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\langgraph\pregel\runner.py", line 283, in atick
await arun_with_retry(
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\langgraph\pregel\retry.py", line 128, in arun_with_retry
return await task.proc.ainvoke(task.input, config)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\langgraph\utils\runnable.py", line 672, in ainvoke
input = await asyncio.create_task(
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\langgraph\utils\runnable.py", line 431, in ainvoke
ret = await asyncio.create_task(coro, context=context)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\langgraph\prebuilt\chat_agent_executor.py", line 763, in acall_model
response = cast(AIMessage, await model_runnable.ainvoke(state, config))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\langchain_core\runnables\base.py", line 3088, in ainvoke
input_ = await coro_with_context(part(), context, create_task=True)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\langchain_core\runnables\base.py", line 5447, in ainvoke
return await self.bound.ainvoke(
^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\langchain_core\language_models\chat_models.py", line 417, in ainvoke
llm_result = await self.agenerate_prompt(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\langchain_core\language_models\chat_models.py", line 991, in agenerate_prompt
return await self.agenerate(
^^^^^^^^^^^^^^^^^^^^^
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\langchain_core\language_models\chat_models.py", line 949, in agenerate
raise exceptions[0]
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\langchain_core\language_models\chat_models.py", line 1117, in _agenerate_with_cache
result = await self._agenerate(
^^^^^^^^^^^^^^^^^^^^^^
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\langchain_openai\chat_models\base.py", line 1199, in _agenerate
response = await self.async_client.create(**payload)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\openai\resources\chat\completions\completions.py", line 2028, in create
return await self._post(
^^^^^^^^^^^^^^^^^
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\openai_base_client.py", line 1748, in post
return await self.request(cast_to, opts, stream=stream, stream_cls=stream_cls)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\code\test_code\deer-flow.venv\Lib\site-packages\openai_base_client.py", line 1555, in request
raise self._make_status_error_from_response(err.response) from None
openai.BadRequestError: Error code: 400 - {'message': '400 Input tokens exceed the configured limit of 272000 tokens. Your messages resulted in 339549 tokens. Please reduce the length of the messages.'}
During task with name 'agent' and id '888e5c19-0768-9651-fcab-6eeee8a9d756'