You'll find customer support is a common target. Fine-tuning helps with consistent tone, escalation procedures, and response format. RAG handles product knowledge and policy details. Most successful bots combine both.
Here's how companies use fine-tuning successfully:
- Replit: Code completion for their platform
- StitchFix: Product descriptions with human oversight
- Wayfair: Customer support with consistent brand voice
Notice the pattern: they all combine fine-tuning with other techniques. None rely on fine-tuning alone.