Services / RAG Implementation

RAG Implementation That Actually Works in Production

Most RAG demos retrieve the wrong documents. Production RAG needs hybrid search, proper chunking, multi-tenant isolation, and evaluation harnesses — and often integrates into agent orchestration workflows. CodeWheel builds RAG systems that answer questions accurately and scale with your data.

Read RAG Architecture Guide

Typical delivery

4-8 weeks from kickoff to production deployment, depending on document volume and integrations.

RAG Architecture

Production RAG, Not Demo RAG

The difference between a RAG demo and production RAG is retrieval accuracy, proper chunking, and systems that don't break when your data grows.

Semantic Chunking & Ingestion
Document extraction with pymupdf/unstructured.io, smart chunking strategies, metadata enrichment, and delta processing for incremental updates.
Hybrid Search & Retrieval
pgvector for semantic search combined with BM25 keyword matching. Cohere/BGE reranking, metadata filters, and precision/recall tuning.
Multi-tenant Isolation
Row-level security on vector tables, tenant-scoped embeddings, and query isolation. Enterprise-ready from day one.
Evaluation & Observability
Golden question test suites, retrieval accuracy metrics, citation tracking, latency dashboards, and drift detection.

What gets built

End-to-End RAG Pipeline

Document Ingestion Pipeline

Automated extraction from PDFs, Word docs, web pages, and APIs. Semantic chunking with overlap, heading detection, and table handling.

Embedding & Vector Storage

OpenAI text-embedding-3-large or open-source alternatives. pgvector schemas with HNSW indexes, versioning for re-embeds, and backup strategies.

Retrieval Layer

Hybrid scoring combining vector similarity + keyword relevance. Configurable weights, metadata filters, and reranking with Cohere or cross-encoders.

LLM Orchestration

Context window management, prompt templates, streaming responses, citation extraction, and fallback handling for rate limits.

Testing & Evaluation

Golden question datasets, automated retrieval accuracy checks, A/B testing infrastructure, and regression detection.

Use Cases

Where RAG Delivers Value

Customer Support AI

Answer questions from knowledge bases, tickets, and documentation. Reduce support volume with accurate, cited responses.

Internal Knowledge Search

Search across Confluence, Notion, Google Drive, and Slack. Find answers without knowing where to look.

Legal & Compliance

Search contracts, policies, and regulatory documents. Extract clauses, compare versions, summarize changes.

Product Documentation

AI-powered docs that answer user questions. Reduce friction, improve onboarding, track what users struggle with.

Technology

The RAG Stack

Next.js / Python FastAPI Supabase or Neon with pgvector OpenAI / Anthropic / open-source LLMs LangChain / LlamaIndex Cohere Rerank / BGE cross-encoders PostHog for analytics Inngest / Temporal for job queues Vercel / Railway / AWS deployment

FAQ

RAG Implementation Questions

What makes a RAG system production-ready?

Production RAG needs accurate retrieval (not just semantic similarity), proper chunking for your content type, multi-tenant isolation if serving multiple customers, evaluation harnesses to catch regressions, and observability to debug issues. Most demos skip all of this.

How long does RAG implementation take?

Typical builds run 4-8 weeks. Weeks 1-2 cover ingestion and chunking strategy. Weeks 3-4 focus on retrieval tuning and evaluation. Weeks 5-6 add LLM orchestration and production hardening. Larger document sets or complex integrations extend the timeline.

Do you work with existing vector databases?

Yes. We work with pgvector (Supabase, Neon), Pinecone, Weaviate, Qdrant, and Chroma. If you have an existing setup, we can audit and improve it rather than rebuild from scratch.

How do you handle multi-tenant RAG?

Row-level security on vector tables ensures tenants only see their own documents. Embeddings are scoped by tenant ID, and queries are automatically filtered. This is table stakes for B2B SaaS.

What about RAG evaluation and testing?

Every RAG system ships with golden question datasets, automated retrieval accuracy checks, and regression detection. You can measure precision, recall, and answer quality before and after changes.

How does RAG integrate with AI agents?

RAG provides the knowledge layer that agents use to ground their reasoning. In production, agent workflows call retrieval tools to fetch relevant context before making decisions or generating responses. We design RAG pipelines as first-class agent tools with proper schema validation, tenant filtering, and audit logging.

Ready to Build Production RAG?

Let's discuss your documents, use case, and timeline. We'll share what a realistic RAG architecture looks like for your situation.

Read the RAG guide first

Already have a RAG system? Get it security tested before your next funding round.