Fine-tuning vs. Retrieval

Audience Persona
EngineersPractitioners
Definition

Fine-tuning updates model weights; retrieval adds external info without retraining.

Why It Matters

Helps choose the right tool to adapt an AI system.

Real-World Examples

Fine-tune GPT on legal cases vs. plug in a legal database via retrieval

Common Misconceptions

Fine-tuning = always better; retrieval = always cheaper

Technical Glimpse

Retrieval-Augmented Generation (RAG) combines LLMs with vector search or DBs.

Try It Yourself

Use LangChain to build a RAG pipeline on your docs.

Cautions

Fine-tuning is expensive; retrieval requires great source quality.

Persona

  • Engineers
  • Practitioners

Why it Matters

Helps choose the right tool to adapt an AI system.

Common Misconceptions

Fine-tuning = always better; retrieval = always cheaper

Try It Yourself

Use LangChain to build a RAG pipeline on your docs.

Cautions

Fine-tuning is expensive; retrieval requires great source quality.

Definition

Fine-tuning updates model weights; retrieval adds external info without retraining.

Real-World Examples

Fine-tune GPT on legal cases vs. plug in a legal database via retrieval

Technical Glimpse

Retrieval-Augmented Generation (RAG) combines LLMs with vector search or DBs.