Private AI for Business

Decision / RAG versus fine-tuning

RAG changes what the model reads. Fine-tuning changes how it writes.

RAG grounds answers in your current documents and citations. Fine-tuning adjusts the model's style, format, or behavior on a fixed training set. Most business workflows start with RAG and add fine-tuning only when output behavior needs to change.

Current knowledgeSource citationsFormat and toneMaintenance cost
A neutral example of the same workflow pattern, run on supplied synthetic material.

Pattern demonstration / same workflow, synthetic material

Fixed-scope setupClient-owned accountsDraft-and-review firstFull handover

How to choose

The question is what needs to change.

If the problem is stale or missing knowledge, retrieval fixes it without retraining. If the problem is that answers are not in the right structure, fine-tuning may help.

01 / KNOWLEDGE

Use RAG for changing sources

Documents, contracts, policies, and records update without retraining the model.

02 / BEHAVIOUR

Consider tuning for fixed style

Fine-tuning can shape tone, structure, and response format when examples are stable.

03 / COST

Compare maintenance

RAG is easier to refresh; fine-tuning adds training, versioning, and evaluation work.

The model decision boundary

Neither method removes human review.

EVIDENCE

RAG cites what it knows

Answers can point to the source when retrieval is the foundation.

TRAINING

Fine-tuning is not memory

Tuned models still need sources and evaluation for current facts.

REVIEW

Outputs stay reviewed

High-stakes outputs keep a named reviewer and approval step.

A first model decision

Start with the failure you are fixing.

Describe the failure

Is the answer missing knowledge, poorly structured, or inconsistent?

Try retrieval first

Ground the model in the current documents and evaluate the result.

Test format changes

Use prompts and structured outputs before committing to fine-tuning.

Decide with evidence

Compare the evaluation results, maintenance cost, and review burden.

Choose the method that fixes the observed failure, not the method that sounds more advanced.

Why trust Pristine3D?

We build and operate production software.

Pristine3D Ltd builds and operates live digital products, and we run private AI workflows internally as part of our own operations. We scope around your real workflow: the documents you own, the questions your team asks, and the access boundary you approve. Based in Lagos, Nigeria, we work remotely with clients worldwide.

METHOD

We start with the actual workflow

One input, one output, one test set, and one person who owns the result. We scope a real workflow instead of a transformation programme.

OWNERSHIP

The boundary stays visible

Cloud, model, storage, and messaging accounts stay in your name. The chosen data path, access rules, test record, documentation, and training are part of the agreed scope.

Pricing / fixed scope

Know the starting numbers before you ask.

The final quote follows the workflow. Infrastructure and model bills stay on your accounts.

Annual support

Starting from
$3,000 / ₦1.5m
per year

Standard care for one delivered workflow. Optional. Larger deployments and active monitoring are separately scoped.

See support

Architecture review from $500. Standard annual support is $3,000 / ₦1.5m per year for one delivered workflow. New workflows, integrations, active monitoring, and infrastructure are separately scoped; infrastructure, model, storage, and messaging bills stay on client accounts. Full pricing and what changes the quote

Straight answers

Common questions.

Do most businesses need fine-tuning?

No. Most first workflows improve with better retrieval, prompts, and evaluation. Fine-tuning is reserved for cases where behavior itself must change.

Can we use both?

Yes. RAG can feed current knowledge to a tuned model when the combination is justified.

Who evaluates the choice?

We test both routes against your real questions and show the difference before you pay for more.

Own your knowledge base

The model is not the product. The knowledge base is.

Documents, the retrieval index, access rules, and the workflows built around them are the asset, and they compound. We deploy so the knowledge base stays yours: on your accounts, in the environment you choose, under access rules your team defines. The model behind the answers is a connector, so the knowledge base moves with you, not with a vendor.

THE ASSET

Your corpus, your index

The document store, metadata, and retrieval setup live on accounts you own. No vendor holds the corpus.

THE LOCK-IN

Models are swappable parts

Change the model provider, move regions, or go local without rebuilding the knowledge base or the workflow.

THE ALPHA

The knowledge base is the alpha

Every improvement to the corpus improves the answers, and the improvement stays with you, not with a vendor.

Keep exploring

Related setups.

Start with the failure

What is wrong with the current output?

Tell us the task, the documents, and the output problems. We will recommend RAG, tuning, or neither based on tests.

Prefer email? Message us at hey@pristine3d.com.