← AI agents & chatbotsRetrieval-augmented generation

RAG development that ships — and stays honest.

Retrieval-augmented generation built for production: grounded answers, enforced citations, and an eval harness that catches regressions before your users do.

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Most RAG demos look great and fall apart in production. The retrieval goes fuzzy, the model invents policy, and nobody notices until a customer screenshots a wrong answer. We build the version that survives contact with real users — and we measure it on every change so it stays that way.

What we build

The full retrieval stack, not just a clever prompt.

Document ingestion and chunking pipelines

Tuned to your content and query patterns, not a default 512-token split.

Vector store setup and retrieval tuning

Pinecone, pgvector, or AWS Bedrock, chosen for your scale and budget.

Reranking and citation enforcement

Every answer traces back to a source, or it doesn't ship.

Hallucination guards and escalation

When the system isn't sure, it says so and hands off cleanly.

An evaluation harness

A golden dataset that grades resolution, safety, tone, and grounding on every change.

How we ship RAG without regret

The same playbook on every retrieval system we build.

1

Eval harness before the bot

We build a golden dataset before a single production prompt. Every chunking change, model swap, and reranker tweak runs through it. Regressions block the merge.

2

Soak before scale

The system reads real queries and drafts answers only your team can see — for two weeks. You grade the drafts. The disagreements drive the last round of tuning.

3

Ship on a canary

Five percent of traffic, then fifty, then full — watching grounding and citation accuracy the whole way.

It's the same discipline we wrote up in RAG without regret — the public version of the checklist we run internally.

Where RAG fits

Built to be queried.

  • Support assistants that answer from your real docs, not the open internet.
  • Internal knowledge bots that let staff query policies, runbooks, and contracts in plain language.
  • Product search and Q&A grounded in your catalogue or knowledge base.
The stack we reach for

Model-agnostic, by design.

OpenAI, Anthropic, and Google Gemini for generation. LangChain and LlamaIndex for orchestration. Pinecone, pgvector, or AWS Bedrock for retrieval. Postgres and Next.js underneath. We pick per problem and build in fallbacks — we're not tied to one vendor.

FAQ

Frequently asked questions.

How long does a RAG build take?
A focused knowledge bot is typically 3-4 weeks; a multi-source enterprise system is 5-8. You see a working version early and give feedback before we finalise.
How much of our data do you need?
Enough to be representative, not exhaustive. We can start with a slice of your documents, tune retrieval against it, and expand once the quality is proven.
How do you stop it hallucinating?
Citation enforcement and grounding checks: answers that can’t cite a source are blocked or escalated, and the eval harness measures grounding on every change.
Which vector database should we use?
Usually pgvector if you're already on Postgres, Pinecone if you need managed scale. We'll recommend the right one on the first call.

Ready to build something that actually works?

One conversation. A precise roadmap, a realistic estimate, and a clear pass/no-pass on whether AI is the right fix.

Get a free consultation hello@theprocoders.com