Fine-tuning is taking a base LLM and continuing its training on examples specific to your domain (your past customer chats, your tone of voice, your product catalogue). For most hashtag.org portals, RAG is enough and you do not need to fine-tune. Fine-tuning is reserved for cases where tone or jargon need to be baked into the model itself.
AI agents
Fine-tuning
Extra training so a model speaks in your brand's voice or knows your specific data.