ChatGPT[a] is an artificial-intelligence (AI) chatbot developed by OpenAI and launched in November 2022. It is built on top of OpenAI’s GPT-3.5 and GPT-4 families of large language models (LLMs) and has been fine-tuned (an approach to transfer learning) using both supervised and reinforcement learning techniques.
ChatGPT was launched as a prototype on November 30, 2022. It garnered attention for its detailed responses and articulate answers across many domains of knowledge.[3] Its uneven factual accuracy, however, has been identified as a significant drawback.[4] Following the release of ChatGPT, OpenAI’s valuation was estimated at US$29 billion in 2023.[5]
The original release of ChatGPT was based on GPT-3.5. A version based on GPT-4, the newest OpenAI model, was released on March 14, 2023, and is available for paid subscribers on a limited basis.
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What is Chat GPT4
How is GPT-4 different from other models?
- GPT-4 is a type of program called a Transformer-based model, which is trained to predict the next word or phrase in a document.
- After training, it goes through another process that helps it be more accurate in telling facts and sticking to what it’s supposed to do.
- Hence, GPT-4 is more creative and reliable and can handle more nuanced conversations than previous models.
- GPT-4 performs better in areas where GPT 3.5 was not as good, as per their technical report.
https://ai.plainenglish.io/i-got-gpt-4-access-is-it-worth-the-hype-fa6a10c1554f
Prompt Engineering

Hello, my name is Ralph. I am a Digital Stuntman. Ecosystem Manager. and Director of Studies at the University of Applied Sciences HWZ, Zurich. This is my Digital Playground especially for topics from my lectures in the Master of Advanced Studies in Digital Business.