ChatGPT Experts are AI integration specialists who leverage OpenAI's large language models to automate text-based business processes. Responsibilities include:

• Engineering precise prompts to generate highly specific outputs.
• Building "Custom GPTs" trained on proprietary company data.
• Integrating the ChatGPT API into customer service bots or CRMs.

Experts use AI interfaces and integration wrappers. Key entities include:

• OpenAI API (GPT-3.5/GPT-4 architecture).
• Prompt Engineering frameworks (Few-shot, Chain-of-Thought).
• LangChain for connecting LLMs to external data sources.
• Python for scripting API calls.

While a ChatGPT Expert focuses on the application and tuning of an existing, pre-trained commercial model, an AI Developer focuses on the mathematical construction and training of a brand new model from scratch.