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"
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3. Create a new key by clicking the "Create new secret key" button. See the image for reference.
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That's all. You can use this key in your applications.
Remember, the key created has access to both GPT-4 and ChatGPT models. You don't need separate API keys.
Cost
Please note that you will be charged based on your monthly usage. The cost structure is as follows: 750 words (aka 1000 tokens). Below is a table representing the cost per 1000 tokens:
Model Cost
GPT-4 (8k Context) $0.03
GPT-4 (32k Context) $0.06
GPT-3 (Davinci) $0.02
GPT-3.5 Turbo $0.002 (10x cheaper than GPT-3)
Whisper (Audio). $0.006 / minute
For example, if you use 2500 tokens per day of GPT-3 Davinci for 20 days a month, you will be charged $1 per month, i.e. 0.02 * 2.5 * 20.
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
Otherwise, you will run into usage limit errors.
You can also set up a usage limit if you have a paid set up, 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 / GPT-4 features on your Mac. Write emails, documents, and blogs in seconds, and rewrite sentences to different tones without leaving your application. Now, it supports loading your own documents.
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