Definition
ChatGPT (released 2022) is a conversational interface powered by Large Language Models (LLMs) developed by OpenAI. Based on the Transformer Architecture, it achieved a breakthrough in human-like reasoning and creative generation, marking the arrival of the “Generative AI” era.
Why It Matters
ChatGPT represents a paradigm shift in how humans interact with information and software, moving from rigid commands to flexible, generative reasoning in a conversational format.
Core Concepts
- Transformer Engine: It utilizes the self-attention mechanism to process information in parallel, capturing deep contextual relationships across vast sequences of text (Transformer Architecture).
- RLHF (Reinforcement Learning from Human Feedback): The critical technique used to “align” the model, training it to be helpful, harmless, and honest through millions of cycles of human ranking.
- Hallucination Challenge: The tendency of the model to generate plausible-sounding but factually incorrect information due to its probabilistic nature (Hallucination (AI)).