Opulence.
AI Consulting & Automation

Custom LLM & RAG Solutions

Assistants, copilots and knowledge tools grounded in your own documents and data.

A general model knows the world. It does not know your contracts, your product manuals or your support history. Retrieval-augmented generation connects the two, so an assistant answers from your sources and shows where the answer came from. We build these systems for customer support, internal knowledge, sales enablement and document-heavy operations.

Quality depends on the retrieval pipeline and the evaluation set more than on the model. That is where we spend the effort.

How we're different
  • Permissions are enforced at retrieval, so a user never sees content they couldn't open directly.
  • Every answer cites its source, which builds trust and makes errors easy to spot.
  • The evaluation set is built with your experts and runs automatically, so quality is measured, not assumed.
Who this is for
  • A bank, insurer or telecoms operator whose support teams search thousands of policy documents by hand.
  • An engineering or manufacturing group with decades of manuals, drawings and maintenance records.
  • A legal or professional services function inside a group that needs answers with sources, not summaries.
Signals you need this now
  • Staff ask colleagues because the intranet search returns nothing useful.
  • A vendor chatbot was trialled and answered confidently and wrongly.
  • Documents carry access restrictions that a general assistant would ignore.
  • Answer quality has never been measured against a set of real questions.
Scope of work

What is included.

  1. 01

    Use case and data scoping

    Which questions the assistant must answer, from which sources, for whom.

  2. 02

    Ingestion pipeline

    Document parsing, chunking, metadata and permissions-aware indexing.

  3. 03

    Retrieval and generation

    Hybrid search, reranking, prompt design and citation of sources.

  4. 04

    Evaluation

    A test set of real questions with graded answers, run on every change.

  5. 05

    Interface and integration

    Chat, in-app assistant, Slack or Teams bot, or an API for your product.

  6. 06

    Deployment

    Hosted in your cloud with monitoring, cost controls and access management.

Method

Four steps, no surprises.

  1. 01

    Scope

    Questions, sources, users and success measures agreed.

  2. 02

    Ingest

    Pipeline built and indexed with permissions and metadata.

  3. 03

    Tune

    Retrieval and prompts iterated against the evaluation set.

  4. 04

    Deploy

    Launch in the chosen interface with monitoring and feedback capture.

How the engagement runs

From first meeting to steady state.

  1. 01Weeks 1 to 2

    Scope

    Questions, sources, users, permissions and success measures agreed.

  2. 02Weeks 3 to 8

    Ingest and tune

    Pipeline built and indexed with permissions and metadata, then retrieval and prompts iterated against the evaluation set.

  3. 03Weeks 9 to 12

    Deploy

    Launch in the chosen interface with monitoring, cost controls and feedback capture.

What we measure
  • Answer accuracy on the evaluation set built with your experts.
  • Share of answers with a correct citation.
  • Time to answer for the users in scope, before and after.
  • Permission violations detected in testing and in production.
Who is on the engagement
  • AI engineering lead
  • Retrieval engineer
  • Data engineer
  • Product designer
  • Domain expert liaison
Deliverables
  • Retrieval pipeline and index.
  • Evaluation set with results.
  • Deployed assistant in the agreed interface.
  • Monitoring and cost dashboard.
  • Documentation and hand-over.
Engagement terms

Assistant builds are fixed scope after a scoping phase of one to two weeks. A first production release typically takes six to twelve weeks. Ongoing improvement, content updates and monitoring run on a monthly retainer.

FAQ

Custom LLM & RAG Solutions, in plain terms.

The one that meets your quality, cost and data residency needs. We benchmark options on your evaluation set rather than assuming.

Grounding, citations and guardrails reduce it substantially. The evaluation set measures how often it happens so you know the real rate.

Yes. Structured data and live system queries can be added as tools, which moves toward an agent. See the automation service.

In your cloud environment or a vector database you control, with enterprise model agreements that exclude training on your data.

Next step

Ready to talk about custom llm & rag solutions?