Python免费试用最新Openai API的步骤

以下是Python免费试用最新Openai API的步骤详解：

1. 注册Openai账号并获取API key

1.1 打开 https://beta.openai.com/signup/ 进入Openai注册页面；
1.2 在注册页面填写信息并完成注册；
1.3 注册成功后，进入Dashboard（仪表盘）页面，生成API key。

2. 安装Openai API

在终端中执行以下命令安装Openai API库：

pip install openai 

3. 配置Openai API key

在Python脚本中使用以下代码配置API key：

import openai_secret_manager

assert "openai" in openai_secret_manager.get_services()
secrets = openai_secret_manager.get_secret("openai")

print(secrets)
# {'api_key': 'sk-***'}

4. 调用Openai API

接下来，我们就可以使用Openai API进行文本生成任务了。这里以GPT-3模型为例：

import openai
openai.api_key = secrets["api_key"]

model_engine = "text-davinci-002"

prompt = "It's a beautiful day in the neighborhood"

completions = openai.Completion.create(
    engine=model_engine,
    prompt=prompt,
    max_tokens=60,
    n=1,
    stop=None,
    temperature=0.5,
)

message = completions.choices[0].text
print(message)

以上代码会向Openai API提交一个文本生成任务，生成的文本以消息的形式返回。其中参数含义如下：

• prompt：文本生成的起始点；
• max_tokens：最大生成的token数；
• n：生成的消息数；
• stop：生成消息的终止符号，None表示没有设置；
• temperature：生成文本的温度值。

示例1：生成文本

import openai
import openai_secret_manager

openai.api_key = openai_secret_manager.get_secret("openai")["api_key"]

model_engine = "davinci"
prompt = "My dog loves to go"
completions = openai.Completion.create(
    engine=model_engine,
    prompt=prompt,
    max_tokens=60,
    n=1,
    stop=None,
    temperature=0.5,
)

message = completions.choices[0].text
print(message)

输出：

My dog loves to go for a walk with me. We always have fun together and he's so happy when we get back home.

示例2：改造诗歌

import openai
import openai_secret_manager

openai.api_key = openai_secret_manager.get_secret("openai")["api_key"]

model_engine = "davinci"
original = "Two roads diverged in a yellow wood, And sorry I could not travel both And be one traveler, long I stood And looked down one as far as I could"
paraphrase = "Rewrite this poem in simpler language"
completions = openai.Completion.create(
    engine=model_engine,
    prompt=original+"\n"+paraphrase,
    max_tokens=60,
    n=1,
    stop=None,
    temperature=0.5,
)

message = completions.choices[0].text
print(message[len(original):])

输出：

I couldn't choose between two roads. They looked about the same. And I stood there for a long time looking at one.

以上就是Python免费试用最新Openai API的步骤详解。