■ get_openai_callback 함수 : 단일 채팅 모델에서 스트리밍시 토큰 사용량 구하기
※ 비용을 측정할 수 없다.
※ OPENAI_API_KEY 환경 변수 값은 .env 파일에 정의한다.
▶ main.py
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from dotenv import load_dotenv from langchain_openai import OpenAI from langchain_community.callbacks import get_openai_callback load_dotenv() openAI = OpenAI(model_name = "gpt-3.5-turbo-instruct") with get_openai_callback() as generatorContextManager: for chunkString in openAI.stream("Tell me a joke"): print(chunkString, end = "", flush = True) print(chunkString) print("--------------------------------------------------") print() print(f"Total Tokens : {generatorContextManager.total_tokens}" ) print(f"Prompt Tokens : {generatorContextManager.prompt_tokens}" ) print(f"Completion Tokens : {generatorContextManager.completion_tokens}") print(f"Total Cost (USD) : ${generatorContextManager.total_cost}" ) """ Why don't scientists trust atoms? Because they make up everything. they make up everything. -------------------------------------------------- Total Tokens : 0 Prompt Tokens : 0 Completion Tokens : 0 Total Cost (USD) : $0.0 """ |
▶ requirements.txt
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aiohttp==3.9.5 aiosignal==1.3.1 annotated-types==0.7.0 anyio==4.4.0 async-timeout==4.0.3 attrs==23.2.0 certifi==2024.6.2 charset-normalizer==3.3.2 dataclasses-json==0.6.7 distro==1.9.0 exceptiongroup==1.2.1 frozenlist==1.4.1 greenlet==3.0.3 h11==0.14.0 httpcore==1.0.5 httpx==0.27.0 idna==3.7 jsonpatch==1.33 jsonpointer==3.0.0 langchain==0.2.5 langchain-community==0.2.5 langchain-core==0.2.9 langchain-openai==0.1.9 langchain-text-splitters==0.2.1 langsmith==0.1.82 marshmallow==3.21.3 multidict==6.0.5 mypy-extensions==1.0.0 numpy==1.26.4 openai==1.35.3 orjson==3.10.5 packaging==24.1 pydantic==2.7.4 pydantic_core==2.18.4 python-dotenv==1.0.1 PyYAML==6.0.1 regex==2024.5.15 requests==2.32.3 sniffio==1.3.1 SQLAlchemy==2.0.31 tenacity==8.4.2 tiktoken==0.7.0 tqdm==4.66.4 typing-inspect==0.9.0 typing_extensions==4.12.2 urllib3==2.2.2 yarl==1.9.4 |
※ pip install python-dotenv langchain-community langchain-openai 명령을 실행했다.