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Service

LLMs that cite their sources.

Retrieval-augmented generation is easy to demo and hard to trust. We build RAG systems with measured faithfulness, hybrid retrieval tuned on your corpus, and answer pipelines that say “I don't know” instead of inventing policy.

quantpi · service/telemetry
$ service.describe()
faithfulness target: ≥ 0.92 · groundedness measured per release
ip transfer: complete · lock-in: none
delivery: hyderabad · timezone overlap: US/EU
# every claim on this page is contractually testable
SYS/01The problem

Naive RAG fails quietly, and quietly is worse than loudly.

Chunk-and-pray pipelines hit 60–70% answer quality and plateau. The failures are silent: wrong-but-plausible answers your users stop reporting and start distrusting. Production RAG is a retrieval engineering problem first and a prompting problem second — and retrieval quality is measurable.

SYS/02What we build

Capabilities

Hybrid retrieval engineering

Dense embeddings (BGE-M3, OpenAI, Cohere) fused with BM25 and reranking. Chunking strategies tested per document type, not copied from a tutorial.

recall@10: tuned per corpus

Grounded generation

Citation-enforced prompting, answerability classification, and refusal calibration. The model answers from your documents or says it can't.

hallucination: eval-gated

RAG evaluation harness

Faithfulness, answer relevance, and context precision measured on a golden set drawn from real user queries — run in CI on every change.

metrics: RAGAS + custom

Agentic & multi-step workflows

LangGraph-orchestrated agents for tasks that need tools, multi-hop retrieval, or human-in-the-loop checkpoints — with full trace visibility.

orchestration: LangGraph

Document & data pipelines

OCR, layout parsing, table extraction, metadata enrichment, and incremental sync — the ingestion layer that determines your ceiling.

ingestion: incremental

Access-aware retrieval

Row-level security carried into the vector store. Users retrieve only what they're entitled to see — enforced at query time, audited per request.

ACL: query-time enforced
SYS/03How we work

The approach

A sequence, because the order is the point: each phase gates the next on evidence.

01 /

Corpus audit

We profile your documents — formats, structure, duplication, freshness — and build the golden eval set from real questions your users actually ask.

02 /

Retrieval baseline

Hybrid retrieval tuned and measured before any generation work. If retrieval can't find the answer, no prompt will save you.

03 /

Generation & guardrails

Grounded prompting, citation enforcement, refusal calibration, and inline PII/safety filters — each change gated by the eval suite.

04 /

Production & feedback loop

Deployment with per-query tracing, user feedback capture wired into the eval set, and drift monitoring on both corpus and queries.

SYS/04What you receive

Deliverables

  • Hybrid retrieval pipeline tuned on your corpus
  • Golden eval set + automated RAG metrics in CI
  • Citation-enforced generation layer
  • Ingestion pipeline with incremental sync
  • Access-control-aware vector store design
  • Per-query trace and feedback instrumentation
  • Cost model: tokens, embeddings, infrastructure
  • Runbooks and team training
Working stack
LangGraphLangChainBGE-M3OpenSearchQdrantpgvectorRAGASvLLMOllamaFastAPIPresidioMLflow
SYS/05Questions, answered straight

FAQ

What accuracy can we realistically expect from RAG?
On well-curated corpora with tuned hybrid retrieval, we typically reach 90%+ faithfulness on the golden set. The honest answer depends on your documents: clean, current content retrieves well; contradictory or stale content needs curation first — which we identify in the corpus audit.
Can RAG run fully on-premises?
Yes. We ship fully air-gapped stacks: open-weight models on vLLM or Ollama, BGE-M3 embeddings, Qdrant or pgvector, and OpenSearch — no data leaves your network. This is our standard pattern for healthcare and financial clients.
How do you stop the model from hallucinating?
Three layers: retrieval quality (most hallucinations are retrieval failures), citation-enforced generation with answerability checks, and eval gates in CI that block releases when faithfulness drops. Zero hallucination is not an honest promise; measured and bounded is.
RAG or fine-tuning — which do we need?
RAG for knowledge that changes; fine-tuning for style, format, or domain reasoning patterns. Many production systems use both. We benchmark both on your data during the proving phase rather than deciding by ideology.

Ship AI that earns its place in production.

Tell us what you're building. We'll tell you, candidly, how we'd build it — architecture, timeline, and cost.

Average first response: under 24 hours · straight engineering answers, no pitch theatre