RAG System Development · Answers with sources

RAG system development for answers from your own documents

theBlue.ai builds RAG systems for companies: retrieval-augmented generation that connects a language model to your own documents and data, so your team asks in plain language and gets an answer that names the document and page it came from. The knowledge stays current without retraining the model, and the system runs on-premise, in the cloud or hybrid.

INSIDE YOUR NETWORK YOUR DOCUMENTS Policies Manuals Contracts Wiki pages Knowledge index chunked and embedded Is our data encrypted? ANSWER WITH SOURCES [1] Policy, p. 12 [2] Wiki: Hosting Ready to verify Answers from your documents, every one with its source

Proof

Retrieval that pays off, in three numbers

theBlue.ai has delivered more than 100 AI and automation projects since 2016. Retrieval over a company’s own documents sits at the core of many of them, from product documentation to security questionnaires.

75%
Less time to complete a security questionnaire at apoQlar
$90K
Estimated saving a year across roughly 15 questionnaires
100+
AI and automation projects delivered

Some of the organisations we have built for

How it works

One question, answered from your documents

Question

Where is customer data stored, and who can access it?

Passages found in your documents

Information security policy · p. 12

✓

Data protection concept · p. 4

✓

Wiki: Hosting architecture

✓

Onboarding checklist · p. 2

Answer

Customer data is stored in the company’s own cloud environment in the EU.13 Access is limited to named administrators and every access is logged.2

  • [1] Information security policy, p. 12
  • [2] Data protection concept, p. 4
  • [3] Wiki: Hosting architecture

Ready to verify

−75%Completion time, from about a month to under a week
6 → 2 weeksClient onboarding
$90KEstimated saving a year

Illustrative example. Figures from the apoQlar security questionnaire case study.

Built for production

What decides whether the answers can be trusted

Retrieval quality decides everything: if the system retrieves the wrong passages, even the best model gives a confident wrong answer. These six parts are where a convincing demo becomes a system you can rely on.

Clean, structured data

PDFs, wiki pages and manuals arrive in very different shapes. Extraction and cleaning are built for each format, because inconsistent documents weaken retrieval.

Chunks that keep their meaning

Documents are split into logical sections and embedded, so a question retrieves the passage that answers it with minimal delay.

Semantic and keyword search

Semantic search finds meaning even when the wording differs. Where precision matters, a hybrid with keyword search covers exact terms and codes.

A source on every answer

Each answer names the document and page it drew from, so your team can check it and use it directly in customer-facing work.

Context across a conversation

Follow-up questions keep their context while only the most relevant passages stay in the prompt, so accuracy and speed hold over several turns.

Beyond documents

RAG can also query databases or knowledge graphs, with the model writing the structured query, for questions whose answer sits in tables.

Control

Your knowledge stays where it belongs

Inside your environment

The index and the model run on-premise, in your cloud tenant or hybrid. For apoQlar all processing stays inside their own cloud environment.

Always current

Knowledge is supplied at the moment of the question. Update a document and the next answer reflects it, with no retraining.

A person verifies

Sources on every answer turn review into a quick check. At apoQlar a small team verifies what used to take eight to ten people.

Maintained by your experts

Subject experts update and extend the knowledge base themselves in editable lists, without waiting for a developer.

Testimonial

What the client says when the work is done

MedTech · Compliance

Security questionnaires answered by retrieval over your own documents

–75%Completion time, a month to under a week
$90KEstimated annual saving
Read the case study
Managing the completion of security questionnaires is no longer a logistical nightmare. The new system is easy to manage and ensures our responses are accurate and comprehensive.
Maciej Antoszczuk Tech Product Owner, apoQlar

How to start

Start with one knowledge base and one question

An MVP-first start works best: one clear business problem, a working prototype tested with real data and real users, and an architecture that can grow into production.

Free · answer within one business day

Describe your knowledge problem

Tell us which questions cost your team the most time to answer, and where the answers live. We come back within one business day with an initial assessment and a proposal for a 30-minute scoping call.

Describe your knowledge problem
Fixed price · from €3k

Start with the process analysis

Document sources mapped, data quality checked, and an architecture proposed with scope, timeline and cost. A standalone engagement with no commitment to proceed.

See how we work
  1. 1
    Process analysisFixed price from €3k, architecture and cost in writing
  2. 2
    Build and integrateMilestone-based, first working components in six to eight weeks
  3. 3
    Go live and handoverDocumentation, training and ongoing support available

FAQ

Questions about RAG system development

Retrieval-augmented generation connects a large language model to your own documents and data. Before the model answers, the system retrieves the passages that match the question and adds them to the prompt, so the answer is grounded in your knowledge and can name its sources. theBlue.ai builds RAG systems that run on-premise, in the cloud or hybrid.

In two phases. First, retrieval: documents are split into sections and turned into embeddings, and a question finds the semantically closest passages, often combined with keyword search. Second, generation: the language model writes the answer from those passages. RAG can also query databases or knowledge graphs by having the model write a structured query.

For knowledge that changes, RAG. It supplies the relevant context at the moment of the question, so an updated document is reflected in the next answer without retraining. Fine-tuning shapes how a model behaves, for example a fixed output style or specialised vocabulary, and has to be repeated when the underlying information changes. The two combine well; see Custom LLM Development.

It significantly reduces them, because the model answers from retrieved evidence instead of memory alone. It does not replace good engineering: if the system retrieves the wrong passages, the answer can still be wrong. That is why data preparation, retrieval quality and a source on every answer matter, so a person can check what the answer rests on.

The sources you already have, whether standard software or built in-house: PDF policies and manuals, wiki pages, contracts, product documentation, databases and knowledge graphs. For apoQlar the system reads security policies stored as PDFs and technical documentation from Confluence. Each format gets its own extraction and chunking.

RAG does not retrain the model on your documents; it retrieves them at the moment of the question. Where the index and the model run is your decision: on-premise with local models, where documents never leave your network, or in your own cloud tenant, as for apoQlar. Our own internal knowledge assistant runs on our GPUs for the same reason.

Usually yes, with the preparation built in. Documentation rarely arrives in one clean format, so extraction, cleaning and grouping are developed for each document type. The process analysis checks the data first and says where preparation pays off, because clean structure improves every later stage.

The process analysis has a fixed price from €3k and ends with an architecture proposal that states scope, timeline and cost for the build. The build is priced in milestones, and first working components typically arrive six to eight weeks in, tested with your real documents and users.

Tell us which process is costing you the most

Describe the process and we’ll come back within one business day with an initial assessment and a proposal for a 30-minute scoping call.

  • Phase 1 is a standalone engagement, with no commitment to proceed further.
  • Senior engineers from day one. No account managers, no handoffs.
  • We integrate, never replace. Your systems stay exactly as they are.

Not sure which process to start with? Describe where the time goes and we work that out together.

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We’ll come back within one business day.