Build

RAG development

Your AI answers generic questions. Your customers ask specific ones.

15+

RAG systems built

92%

Retrieval accuracy

12

Weeks to launch

Trusted by teams at

VodafoneNikeGeneral ElectricMicrosoftT-MobileBank of America

The Problem

What problem does this service solve?

Your AI features hallucinate because they lean on training data instead of your real documents. You need answers grounded in your knowledge base with citations a user can verify.

One hallucinated answer in a regulated industry can cost more than the entire project. Even in low-stakes settings, users who catch your AI making things up stop trusting it for good.

What you get

  • AI answers grounded in your real data with verifiable citations
  • 90%+ retrieval accuracy on representative query patterns
  • A knowledge base that stays current as your docs and data change

Overview

What is RAG development?

The difference between an AI that invents answers and one your team trusts is retrieval. We build the plumbing that connects your AI to your real knowledge - documents, databases, institutional memory - so every answer comes with a receipt.

RAG is the difference between an AI that invents answers and one that pulls them from your data with citations. Production RAG is harder than it looks - chunking, embedding model choice, retrieval ranking, and answer synthesis all have to work together.

We build RAG systems end to end - document ingestion, intelligent chunking, embedding generation, vector storage, retrieval with reranking, and answer generation with source attribution. Every piece gets tuned to your real data types and accuracy targets.

You get an AI that answers accurately from your knowledge base, cites its sources, and admits when it doesn't know - instead of generating confident nonsense.

Experience Signal

Deployed RAG systems processing millions of documents across healthcare, legal, fintech, and enterprise SaaS with 90%+ retrieval accuracy. 12 weeks is our default, not our stretch goal.

What we build

RAG development services we deliver

Document processing pipelines

Ingestion and parsing for PDFs, Word docs, HTML, Markdown, Notion, Confluence, and structured databases with format-specific chunking strategies.

Vector search infrastructure

Production vector stores (Pinecone, Weaviate, pgvector) with embedding indexes, metadata filters, and hybrid search for the queries pure vector search misses.

Retrieval with reranking

Multi-stage retrieval with cross-encoder reranking that turns top-50 recall into top-5 precision - the single biggest accuracy lever in production RAG.

Answer generation with citations

Grounded response generation with inline source attribution, confidence scoring, and a clean fallback when retrieval comes up empty.

Knowledge base construction

Scratch-built knowledge bases from scattered docs, wikis, and databases - with auto re-indexing as content changes.

Hybrid RAG with structured data

RAG systems that combine document retrieval with live SQL queries for product catalogs, customer records, and analytics data.

Accuracy evaluation harnesses

Eval suites with representative queries and ground truth, plus live drift monitoring so quality regressions get caught the day they happen.

RAG performance tuning

Chunking strategy experiments, embedding model benchmarks, reranker tuning, and latency optimization against real production traffic.

Fit

Is this service right for you?

Good fit

  • SaaS companies building AI features that reference customer-specific or product-specific data
  • Orgs with large document collections that users can't search effectively
  • Legal, healthcare, and financial teams that need cited, auditable AI responses
  • Teams building knowledge assistants, search systems, or Q&A features over internal data

Not the right fit

  • Use cases where general-knowledge AI responses are fine
  • Teams without a meaningful document collection to ground answers in
  • Projects where simple keyword search already hits accuracy and usability targets

Process

How does RAG development delivery work?

1
Phase 1· Week 1-2

Data assessment and retrieval strategy

We audit your data sources, document types, and query patterns. We pick the chunking strategy, embedding model, and retrieval architecture that fits your accuracy targets.

Deliverables

  • Data source audit with document type classification
  • Chunking and embedding strategy with model benchmarks
  • Retrieval accuracy targets and evaluation methodology
2
Phase 2· Week 2-4

Pipeline architecture and ingestion

We build the document processing pipeline, stand up the vector store, and validate retrieval quality on representative queries before touching the generation layer.

Deliverables

  • Document processing pipeline with intelligent chunking
  • Vector store with embedding index and metadata filters
  • Retrieval quality validation on a real query set
3
Phase 3· Week 4-9

Generation layer and accuracy tuning

We build the answer generation system with source attribution, add a reranker for precision, and tune the full pipeline against accuracy benchmarks every week.

Deliverables

  • Answer generation with source citations
  • Reranking layer for retrieval precision
  • Accuracy benchmarks on a representative query set
4
Phase 4· Week 9-12

Production deployment and monitoring

We deploy to production, wire up accuracy monitoring, and set up the continuous update pipeline so the knowledge base never goes stale.

Deliverables

  • Production deployment with accuracy monitoring
  • Knowledge base update pipeline for new documents
  • Operational runbook for accuracy maintenance

Outcomes

  • AI answers grounded in your real data with verifiable citations
  • 90%+ retrieval accuracy on representative query patterns
  • A knowledge base that stays current as your docs and data change
  • A clean eval harness your team can reuse on the next RAG feature

Deliverables

  • Document processing pipeline with format handling and intelligent chunking
  • Vector search infrastructure with embedding index
  • Retrieval pipeline with reranking and relevance scoring
  • Answer generation layer with source attribution
  • Accuracy monitoring dashboard and evaluation suite

Success Metrics

  • Retrieval accuracy - relevant documents in top-k results
  • Answer accuracy against a ground truth eval set
  • Response latency from query to cited answer
  • Knowledge base coverage and freshness
  • Citation correctness - do the sources actually support the answer

Engagement models

12-week end-to-end delivery of one production RAG system from data assessment through deployment and accuracy validation.

Best forTeams building their first RAG feature or replacing a low-accuracy search system.

AI models we work with

GPT-5

OpenAI

Answer synthesis over retrieved passages with strong instruction following and citation formatting.

Claude Opus 4.6

Anthropic

Long-context answer generation when retrieved passages are big, messy, or span many documents.

Claude Sonnet 4.6

Anthropic

High-volume production RAG where cost per answer has to stay predictable.

text-embedding-3-large

OpenAI

The default embedding model for general-purpose retrieval over mixed document types.

Cohere Rerank 3

Cohere

Cross-encoder reranking that turns wide recall into precise top-5 results - the single biggest accuracy lift in production RAG.

Llama 3.3

Meta

Self-hosted RAG for healthcare, legal, and finance where documents can't leave your perimeter.

Use Cases

Common use cases for RAG development

Legal research assistant

A legal firm holds 500,000+ documents across case law, contracts, and regulatory filings. Associates burn 3-4 hours per research query cross-referencing by hand.

How we build it

We build a RAG system that indexes every document type, handles legal citation formats, retrieves passages with jurisdictional context, and generates research summaries with precise source references.

Outcome

Research query time drops from 3-4 hours to 15 minutes. Associates review AI summaries with source links instead of searching from scratch.

Product knowledge base for SaaS

A SaaS company's docs, API references, and release notes are scattered across multiple systems. Customers and support agents can't find accurate answers quickly.

How we build it

We build a RAG-powered search and Q&A system that indexes all product content, handles version-specific questions, and returns answers with links to the exact doc section.

Outcome

Support ticket deflection climbs 35%. Self-service resolution improves because answers cite the right product version.

Clinical decision support

A healthcare platform needs to surface relevant clinical guidelines, drug interactions, and treatment protocols based on patient context - without hallucinating medical information.

How we build it

We build a RAG system with medical document processing, clinical terminology handling, and strict accuracy controls - confidence scoring and mandatory source citation on every response.

Outcome

Clinicians access relevant guidelines in seconds. Zero hallucinated medical recommendations thanks to strict grounding controls.

What clients say

Real feedback from real teams

I spent years at Amazon fighting static surveys. RaftLabs built a working prototype in four days that already outperformed every survey tool I'd used. Twelve weeks later we had a full SaaS that product teams actually want to use.

Founder

Ex-Amazon PM - Perceptional

We went from text surveys that nobody finished to AI phone interviews that people actually enjoy. The voice agents handle the whole conversation, and the analytics tell us what we need to know without reading a single transcript.

Cherian Koshy

Behavioral Strategist - USA Today Bestselling Author

Proof

Recent rag development work

BuildRAG-powered survey chatbot for Perceptional
4x

Deeper insights

12 weeks

Concept to launch

Working prototype in four days. Full SaaS in twelve weeks.

Read case study
BuildVoice AI with grounded answers for Cherian Koshy
12 weeks

To production

Global

Call reach

Text surveys nobody finished became phone interviews people enjoy.

Read case study

Industries

RAG development for your industry

Frequently asked questions about RAG development

Retrieval-augmented generation combines search with AI generation. Instead of relying on what a model learned in training, RAG retrieves relevant info from your actual data and uses it to generate accurate, cited answers. It's the most practical way to make AI answer from your knowledge base.

Related Services

Next Step

Tired of your AI making things up?

We build RAG systems that answer from your actual data with source citations - so your users get answers they can verify, not confident hallucinations.