原始版本调用api方式：

import openaiopenai.api_key = "{上面复制的key}"completion = openai.ChatCompletion.create(model="gpt-3.5-turbo",messages=[{"role": "system", "content": "You are a helpful assistant."},{"role": "user", "content": "Who won the world series in 2020?"},{"role": "assistant", "content": "The Los Angeles Dodgers won the World Series in 2020."},{"role": "user", "content": "Where was it played?"}]
)print(completion.choices[0].message)

使用api_base:

import openaiopenai.api_key = "sk-NYsoG3VBKDiTuvdtC969F95aFc4f45379aD3854a93602327"
openai.api_base="https://key.wenwen-ai.com/v1"completion = openai.ChatCompletion.create(model="gpt-3.5-turbo",messages=[{"role": "system", "content": "You are a helpful assistant."},{"role": "user", "content": "Hello!"}]
)print(completion.choices[0].message)

但是现在api的调用改版了，需要使用新的调用方式，也很简单。

You tried to access openai.ChatCompletion, but this is no longer supported in openai>=1.0.0 - see the README at https://github.com/openai/openai-python for the API.You can run `openai migrate` to automatically upgrade your codebase to use the 1.0.0 interface.Alternatively, you can pin your installation to the old version, e.g. `pip install openai==0.28`A detailed migration guide is available here: https://github.com/openai/openai-python/discussions/742

新版调用chatgpt-api的方式：

由于我的api已经使用完了，所以可以某宝上买一个api_key，直接使用；

新版本就是把ChatCompletion变成了chat.completions

from openai import OpenAI
api_key = ''
client = OpenAI(api_key=api_key)response = client.chat.completions.create(model="gpt-3.5-turbo",messages=[{"role": "system", "content": "You are a helpful assistant."},{"role": "user", "content": "Who won the world series in 2020?"},{"role": "assistant", "content": "The Los Angeles Dodgers won the World Series in 2020."},{"role": "user", "content": "Where was it played?"}]
)
print(response.choices[0].message.content)

或者：加上base_url:

from openai import OpenAIclient = OpenAI(api_key="xxx",base_url = 'xxx'
)def get_completion(prompt, model="gpt-3.5-turbo-1106"):messages = [{"role": "user", "content": prompt}]response = client.chat.completions.create(model=model,messages=messages,temperature=0.7,)return response.choices[0].message.contentprompt = "你好，ChatGPT！"
print(get_completion(prompt))

免费的api项目地址：
https://github.com/popjane/free_chatgpt_api