GPT-3 is a neural network model created by OpenAI that generates text. It is trained on a large corpus of text and can generate text in response to a prompt.
Account creation
To use OpenAI through API, you must create a free account and generate keys. Fortunately, it is pretty straightforward.
1. Sign up here https://beta.openai.com/signup. You can use your Google or Microsoft account to sign up if you don't want to create using an email/password combination. You may need a valid mobile number to verify your account.
2. Now, visit your OpenAI key page https://beta.openai.com/account/api-keys or click the menu item "View API keys"

3. Create a new key by clicking the "Create new secret key" button. See the image for reference.

That's all. You can use this key in your applications.
Cost
Do note that you will be charged based on your monthly usage. The cost structure is, for 750 words (aka 1000 tokens), $0.02 if you use the most advanced model.
For example, if you use 2500 tokens per day for 20 days a month, you will be charged $1 per month.
Setting limits
OpenAI gives $18 free credits which you can consume within the first 3 months. This is a great way to test the service.
If you plan to use it regularly, you need to add your credit card information here https://beta.openai.com/account/billing/payment-methods
You can also set up a usage limit, if you have a paid setup, say, $10/month at
https://beta.openai.com/account/billing/limits

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Check out Elephas, which makes it easy to use GPT-3 features on your Mac. Write emails, documents, and blogs in seconds, and rewrite sentences to diffrent tones without leaving your application.
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