ChatGPT API – Setup Guide and Parameters Explained

Using the new ChatGPT API to make an essay writer. Explanation of parameters.

Works for models like gpt-3, gpt-3.5, gpt-4.
Use “gpt-4” instead if you have access to it.

Commands to install openai and tiktoken:
pip install openai
pip install tiktoken

If “pip” is not found, you have to install it. If it is already installed, try “pip3” instead.

Sample Code:
https://github.com/JosephChing/gpt-3.5-turbo-0301-demos

Link to api-key configuration:
https://platform.openai.com/account/api-keys

API documentation:
https://platform.openai.com/docs/guides/chat

tiktoken sample code for counting tokens:
https://github.com/openai/openai-cookbook/blob/main/examples/How_to_count_tokens_with_tiktoken.ipynb

Timestamps:

0:00 – Setup and Packages
0:12 – Billing and api-key
1:10 – Required Parameters
3:25 – User Input
3:34 – Counting Tokens
4:53 – Test Run
6:28 – Message List
6:55 – Formatting and Essay Prompt
7:48 – Stop parameter
8:16 – Presence Penalty
8:47 – Presence Penalty Demo
9:35 – Frequency Penalty
8:47 – Frequency Penalty Demo
11:16 – Temperature
11:54 – Temparture Demo
12:08 – Stream