[ 02 / GenAI ]

GenAI and RAG system development

Generative AI that answers from your facts, cites where they came from, and says nothing when it has no evidence.

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92%
Answer accuracy in RAG evals
11
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[ Overview ]

GenAI & RAG Systems

GenAI grounded in real business data. We build retrieval-augmented systems over your documents, policies and databases, so models answer from facts, cite their sources, and rank answers you can trust to production.

[ What it includes ]

Why retrieval, and not fine-tuning first

A general model knows the internet as of its training cut-off. It does not know your pricing policy, last quarter's board pack or the clause in your own contract template — and asked about them, it will produce something plausible. Retrieval-augmented generation fixes that by fetching the relevant passages from your own corpus first and requiring the model to answer from them.

The practical payoff is traceability. Because the answer is assembled from retrieved passages, every claim can carry a citation back to the source document, which is what makes the output usable in regulated and audited settings.

Building the retrieval layer

We load and chunk your documents, policies and database records, embed them, and index them for semantic search — commonly on Postgres with pgvector, so the vector store is the database your team already backs up, monitors and secures rather than a new system to operate.

Retrieval quality is where most RAG projects are won or lost, so it gets the attention: chunking strategy, hybrid keyword-plus-vector search, re-ranking, and metadata filters that keep a user's results inside what their role is allowed to see.

Evaluated before it ships

Before a RAG system goes anywhere near users, it is scored against a question set drawn from the real corpus with answers your subject experts agree on. That harness stays in place afterwards, so a change to chunking, a model swap or a prompt edit is measured rather than hoped about.

Abstention is treated as a correct answer. A system that says it cannot find the answer is far more valuable to an enterprise than one that fills the gap with something convincing.

[ Questions we get asked ]

GenAI & RAG Systems, answered.

What is retrieval-augmented generation (RAG)?

RAG retrieves the passages most relevant to a question from your own documents or databases, then has the model answer using only those passages. Because the answer is grounded in retrieved text, it can cite its sources and can decline when nothing relevant is found.

Do we need to fine-tune a model to use our own data?

Usually not, and rarely first. Retrieval gets your current data into the answer without retraining, updates the moment a document changes, and shows its sources. Fine-tuning is worth considering for tone and task format, not for facts.

Which vector database do you use?

Most often Postgres with pgvector, so retrieval lives in a database your team already runs, backs up and secures. Where a workload genuinely needs a dedicated vector store, we will say so rather than add one by default.

How do you stop a GenAI system from hallucinating?

By grounding answers in retrieved passages, requiring citations, and instructing the system to abstain when retrieval returns nothing relevant. An evaluation harness then measures how often it answers correctly, wrongly, or not at all before rollout and after every change.

[ Also from us ]

Other AI services.

01 / Agents

Custom AI Agents

Agents that do the work, not just describe it — wired into the systems your team already uses.

03 / Copilots

AI Copilots

An assistant inside the tool people already have open, grounded in what your company actually knows.

04 / Automation

Enterprise Automation

Whole processes automated end to end, with the exceptions routed to people instead of hidden from them.

05 / Risk AI

Risk & Fraud Intelligence

Fraud flagged as it happens and credit scored at the point of decision — with reasons an auditor will accept.

06 / Deployment

Model Deployment & MLOps

The unglamorous half of AI — versioning, serving, monitoring and rollback — owned by us so your team doesn't carry it.