update llm tool

.env

@@ -0,0 +1,2 @@
+GROQ_API_KEY = "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"
+OPENAI_API_KEY = "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"

agent.py

@@ -79,9 +79,10 @@ sys_msg = SystemMessage(content=system_prompt)
 
 # ------------------- GRAPH CONSTRUCTION -------------------
 
+from langchain_openai import ChatOpenAI  # ✅ 新增导入
+
 def build_graph(provider: str = "groq"):
     """Build the LangGraph with tool-use."""
-    # Select LLM provider
     if provider == "google":
         llm = ChatGoogleGenerativeAI(model="gemini-2.0-flash", temperature=0)
     elif provider == "groq":
@@ -96,6 +97,11 @@ def build_graph(provider: str = "groq"):
                 temperature=0
             )
         )
+    elif provider == "openai":
+        openai_key = os.getenv("OPENAI_API_KEY")
+        if not openai_key:
+            raise ValueError("OPENAI_API_KEY is not set.")
+        llm = ChatOpenAI(model="gpt-3.5-turbo", temperature=0, api_key=openai_key)  # ✅ OpenAI GPT
     else:
         raise ValueError("Invalid provider")
 

requirements.txt

@@ -1,22 +1,81 @@
 aiofiles==24.1.0
+aiohappyeyeballs==2.6.1
 aiohttp==3.12.4
+aiosignal==1.3.2
+annotated-types==0.7.0
 anyio==4.9.0
-async-timeout==4.0.3
+appnope==0.1.4
+asgiref==3.8.1
+asttokens==3.0.0
+attrs==25.3.0
+audioop-lts==0.2.1
+backoff==1.11.1
+bcrypt==4.3.0
+build==1.2.2.post1
+cachetools==5.5.2
+certifi==2025.4.26
+charset-normalizer==3.4.2
 chromadb==1.0.11
+click==8.2.1
+coloredlogs==15.0.1
+comm==0.2.2
+dataclasses-json==0.6.7
+debugpy==1.8.14
+decorator==5.2.1
+Deprecated==1.2.18
+distro==1.9.0
+durationpy==0.10
+executing==2.2.0
 fastapi==0.115.9
 ffmpy==0.5.0
+filelock==3.18.0
 filetype==1.2.0
+flatbuffers==25.2.10
+frozenlist==1.6.0
+fsspec==2025.5.1
+google-ai-generativelanguage==0.6.18
+google-api-core==2.24.2
+google-auth==2.40.2
+googleapis-common-protos==1.70.0
 gradio==5.31.0
 gradio_client==1.10.1
+groovy==0.1.2
 groq==0.26.0
+grpcio==1.73.0rc1
+grpcio-status==1.73.0rc1
+h11==0.16.0
+hf-xet==1.1.2
+httpcore==1.0.9
+httptools==0.6.4
+httpx==0.28.1
+httpx-sse==0.4.0
 huggingface-hub==0.32.3
+humanfriendly==10.0
+idna==3.10
+importlib_metadata==8.6.1
+importlib_resources==6.5.2
+ipykernel==6.29.5
+ipython==9.2.0
+ipython_pygments_lexers==1.1.1
+jedi==0.19.2
+Jinja2==3.1.6
+jiter==0.10.0
+joblib==1.5.1
+jsonpatch==1.33
+jsonpointer==3.0.0
+jsonschema==4.24.0
+jsonschema-specifications==2025.4.1
+jupyter_client==8.6.3
+jupyter_core==5.8.1
+kubernetes==32.0.1
 langchain==0.3.25
+langchain-chroma==0.2.4
 langchain-community==0.3.24
 langchain-core==0.3.63
-langchain-chroma==0.2.4
 langchain-google-genai==2.1.5
 langchain-groq==0.3.2
 langchain-huggingface==0.2.0
+langchain-openai==0.3.18
 langchain-tavily==0.2.0
 langchain-text-splitters==0.3.8
 langgraph==0.4.7
@@ -24,14 +83,111 @@ langgraph-checkpoint==2.0.26
 langgraph-prebuilt==0.2.2
 langgraph-sdk==0.1.70
 langsmith==0.3.43
-networkx==3.4.2
+markdown-it-py==3.0.0
+MarkupSafe==3.0.2
+marshmallow==3.26.1
+matplotlib-inline==0.1.7
+mdurl==0.1.2
+mmh3==5.1.0
+mpmath==1.3.0
+multidict==6.4.4
+mypy==1.16.0
+mypy_extensions==1.1.0
+nest-asyncio==1.6.0
+networkx==3.5
 numpy==2.2.6
+oauthlib==3.2.2
+onnxruntime==1.22.0
+openai==1.82.1
+opentelemetry-api==1.33.1
+opentelemetry-exporter-otlp-proto-grpc==1.11.1
+opentelemetry-instrumentation==0.54b1
+opentelemetry-instrumentation-asgi==0.54b1
+opentelemetry-instrumentation-fastapi==0.54b1
+opentelemetry-proto==1.11.1
+opentelemetry-sdk==1.33.1
+opentelemetry-semantic-conventions==0.54b1
+opentelemetry-util-http==0.54b1
+orjson==3.10.18
+ormsgpack==1.10.0
+overrides==7.7.0
+packaging==24.2
 pandas==2.2.3
+parso==0.8.4
+pathspec==0.12.1
+pexpect==4.9.0
+pillow==11.2.1
+platformdirs==4.3.8
+posthog==4.2.0
+prompt_toolkit==3.0.51
+propcache==0.3.1
+proto-plus==1.26.1
+protobuf==6.31.1
+psutil==7.0.0
+ptyprocess==0.7.0
+pure_eval==0.2.3
+pyasn1==0.6.1
+pyasn1_modules==0.4.2
 pydantic==2.11.5
+pydantic-settings==2.9.1
+pydantic_core==2.33.2
+pydub==0.25.1
+Pygments==2.19.1
+PyPika==0.48.9
+pyproject_hooks==1.2.0
+python-dateutil==2.9.0.post0
 python-dotenv==1.1.0
 python-multipart==0.0.20
+pytz==2025.2
+PyYAML==6.0.2
+pyzmq==26.4.0
+referencing==0.36.2
+regex==2024.11.6
 requests==2.32.3
+requests-oauthlib==2.0.0
+requests-toolbelt==1.0.0
+rich==14.0.0
+rpds-py==0.25.1
+rsa==4.9.1
+ruff==0.11.12
+safehttpx==0.1.6
+safetensors==0.5.3
 scikit-learn==1.6.1
+scipy==1.15.3
+semantic-version==2.10.0
 sentence-transformers==4.1.0
+setuptools==80.9.0
+shellingham==1.5.4
+six==1.17.0
+sniffio==1.3.1
+SQLAlchemy==2.0.41
+stack-data==0.6.3
+starlette==0.45.3
+sympy==1.14.0
+tenacity==9.1.2
+threadpoolctl==3.6.0
+tiktoken==0.9.0
+tokenizers==0.21.1
+tomlkit==0.13.2
+torch==2.7.0
+tornado==6.5.1
 tqdm==4.67.1
+traitlets==5.14.3
+transformers==4.52.4
+typer==0.16.0
+typing-inspect==0.9.0
+typing-inspection==0.4.1
+typing_extensions==4.13.2
+tzdata==2025.2
+urllib3==2.4.0
 uvicorn==0.34.2
+uvloop==0.21.0
+watchfiles==1.0.5
+wcwidth==0.2.13
+websocket-client==1.8.0
+websockets==15.0.1
+wrapt==1.17.2
+xxhash==3.5.0
+yarl==1.20.0
+zipp==3.22.0
+zstandard==0.23.0