Fine-tuning vs RAG
Trace a worked example
From goal to measurement to ship-or-abort for fine-tuning vs RAG on the legal research assistant.
1Learn the idea
Read
Trace
See it
Fine-tune
Teach voice / format into weights
RAG
Fetch fresh docs at ask time
Fine-tune = bake in style · RAG = look things up when answering
Goal: improve the legal research assistant using fine-tuning vs RAG without breaking protected slices.
Mechanism reminder for fine-tuning vs RAG: RAG retrieves and inserts passages; fine-tuning runs gradient updates on task examples.
Baseline and shock: If regulations change weekly, a 2-week fine-tune cadence cannot beat an index refreshed hourly on citation freshness.
Tradeoff in play for fine-tuning vs RAG: Tuning can lock tone and is slow/expensive to refresh for facts. RAG cites sources and fails when retrieval misses. Doing both raises complexity.
Ship decision: RAG for authorities with hourly index; small style tune optional; never rely on weights for amendment text.
Rollback triggers for fine-tuning vs RAG must cite citation support, freshness lag, style rubric, factual error rate, $/query. If you cannot name a tolerated regression on the legal research assistant, do not promote the change.
Read
Make it operational
Keep the fine-tuning vs RAG decision record beside the legal research assistant code paths that implement it. Future you will not remember why a default exists unless the evidence is linked from the config for fine-tuning vs RAG.
Also pin one numeric memory from this fine-tuning vs RAG chapter: If regulations change weekly, a 2-week fine-tune cadence cannot beat an index refreshed hourly on citation freshness. That number is not decoration; it is a template for how claims about fine-tuning vs RAG on the legal research assistant should look in design docs. Scoped specifically to fine-tuning vs RAG / legal research assistant / worked-trace.
Read
Common mix-ups
People confuse fine-tuning vs RAG with neighboring buzzwords when debugging the legal research assistant. Before changing prompts, ask whether the broken stage was evidence gathering, the fine-tuning vs RAG judgment itself, validation, or the product action. Fixing the wrong stage creates folklore (“we tried fine-tuning vs RAG and it failed”) that blocks the next team on the legal research assistant. Scoped specifically to fine-tuning vs RAG / legal research assistant / worked-trace.
Read
Rehearsal (fine-tuning-vs-rag/worked-trace)
Write a five-line artifact for this page: goal, inputs, check, owner, stop rule. Invent one fluent failure that the check would catch. Keep details specific to fine tuning vs rag rather than generic AI advice.
Read
Rehearsal (fine-tuning-vs-rag/worked-trace)
Write a five-line artifact for this page: goal, inputs, check, owner, stop rule. Invent one fluent failure that the check would catch. Keep details specific to fine tuning vs rag rather than generic AI advice.
Read
Rehearsal (fine-tuning-vs-rag/worked-trace)
Write a five-line artifact for this page: goal, inputs, check, owner, stop rule. Invent one fluent failure that the check would catch. Keep details specific to fine tuning vs rag rather than generic AI advice.
Read
Chapter close 1
For fine tuning vs rag, add acceptance test 1: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 2
For fine tuning vs rag, add acceptance test 2: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 3
For fine tuning vs rag, add acceptance test 3: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 4
For fine tuning vs rag, add acceptance test 4: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 5
For fine tuning vs rag, add acceptance test 5: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 6
For fine tuning vs rag, add acceptance test 6: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 7
For fine tuning vs rag, add acceptance test 7: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 8
For fine tuning vs rag, add acceptance test 8: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 9
For fine tuning vs rag, add acceptance test 9: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 10
For fine tuning vs rag, add acceptance test 10: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 11
For fine tuning vs rag, add acceptance test 11: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 12
For fine tuning vs rag, add acceptance test 12: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 13
For fine tuning vs rag, add acceptance test 13: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 14
For fine tuning vs rag, add acceptance test 14: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 15
For fine tuning vs rag, add acceptance test 15: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 16
For fine tuning vs rag, add acceptance test 16: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 17
For fine tuning vs rag, add acceptance test 17: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 18
For fine tuning vs rag, add acceptance test 18: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 19
For fine tuning vs rag, add acceptance test 19: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 20
For fine tuning vs rag, add acceptance test 20: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 21
For fine tuning vs rag, add acceptance test 21: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 22
For fine tuning vs rag, add acceptance test 22: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 23
For fine tuning vs rag, add acceptance test 23: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 24
For fine tuning vs rag, add acceptance test 24: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 25
For fine tuning vs rag, add acceptance test 25: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 26
For fine tuning vs rag, add acceptance test 26: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 27
For fine tuning vs rag, add acceptance test 27: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 28
For fine tuning vs rag, add acceptance test 28: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 29
For fine tuning vs rag, add acceptance test 29: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 30
For fine tuning vs rag, add acceptance test 30: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 31
For fine tuning vs rag, add acceptance test 31: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Read
Chapter close 32
For fine tuning vs rag, add acceptance test 32: evidence source, threshold, and signer. Keep it unique to this chapter's scenario.
Go deeper
Before you start
Why this matters
List the constraints (latency, cost, privacy, review capacity) that any fine-tuning vs RAG change must respect for the legal research assistant.
In the wild
See how this idea shows up as a product and a company — then come back to the lesson. Skills transfer across vendors.
Related lessons
Check your understanding
Page assessment
Answer from memory. Completion is saved from this evidence, not from opening the next page.
All responses are required.