Chapter 4
Understanding GPT Models in ChatGPT
IN THIS CHAPTER
Comparing three models in ChatGPT
Understanding the difference the upgrades make
Creating plans to leverage the models
Grasping the importance of extended prompts
ChatGPT’s models have evolved quickly. The research model using GPT-3 was released in November 2022 for public training and testing. By January 2023, Open AI was quietly rolling out an upgrade, GPT-3.5, a more stable version and the precursor for GPT-4, which was released in March 2023. In this chapter, you learn about these models and how each affects ChatGPT’s performance.
Summarizing Model Progress
As of this writing, ChatGPT defaults to GPT-3.5, but ChatGPT Plus users can choose from any of the models listed in the pull-down menu at the top center of the user interface, as shown in Figure 4-1.
Essentially, GPT-3.5 is an early and partial manifestation of GPT-4 before it was fully trained. OpenAI used Chat 3.5 to further develop several specialized systems, including ChatGPT.
FIGURE 4-1: Model options and other selections for ChatGPT Plus users.
The incremental ...
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