Worked on enhancing the OpenAI Cookbook repository by upgrading the knowledge-base usage example to leverage the GPT-4o-mini model, replacing the previous gpt-3.5-turbo-0613 for improved performance and stability. The update included integrating new reference content based on a recent academic paper, ensuring the example remained current with ongoing research. Adjustments were made to the execution progress output to improve clarity and traceability, and documentation was refined to align with best practices. The work utilized Python, Jupyter Notebook, and YAML, demonstrating a focus on LLM integration, example maintenance, and clear technical communication within a research-driven codebase.