Ask HN: When do you choose RAG over Fine-Tuning?

A Hacker News user, Harish_0089, asks the community when to choose retrieval-augmented generation (RAG) over fine-tuning for large language models, sparking a discussion on the trade-offs between the two approaches. The post, submitted 8 minutes ago, seeks practical guidance from developers and AI practitioners on selecting the appropriate method based on use case, data availability, and cost.