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Sayfitech
AI solutions

RAG implementations

Retrieval pipelines, chunking, embeddings, reranking, citations, tuned for accuracy.

Engagement
Fixed-scope engineering, often on a system you already have
Typical timeline
3–4 weeks
Starts with
Fifty real questions and the answers your own experts consider correct.
01The situation

You already built this. It demonstrates beautifully and then answers a question about the wrong product line, using a document that was superseded last year. Nine times in ten the model is not at fault, the retrieval step handed it the wrong pages and it did its best with them.

Why it matters

Answers grounded in your own data, with sources attached.

AI that does work, not demos.

What we build

Concrete artefacts, handed over and documented.

  1. 01

    An evaluation set of real questions paired with the passages that should have been found, which is the only way to tell improvement from luck

  2. 02

    Chunking tested rather than assumed: whether tables, headings and clause numbering survive is measurable, and it usually decides the outcome

  3. 03

    Hybrid search combining meaning with exact keyword matching, because part numbers and policy codes fail on meaning alone

  4. 04

    A reranking step that reorders candidates before the model sees them, normally the single largest gain available

  5. 05

    Retrieval quality on a dashboard, so a regression is caught internally rather than by a customer

What changes

01

Answers stay tied to the correct and current source document

02

Quality changes are proven against a fixed set instead of debated

03

Cost per answer falls, because good retrieval needs far fewer tokens than a very large context window

How it runs

Week 1

01Build the evaluation set

Fifty real questions, the passages that answer them, and agreement from your experts that those are the right passages.

Weeks 2–3

02Retrieval experiments

Chunking, embedding and search strategies compared on the same set, with the losing options recorded so nobody retries them.

Week 4

03Rerank and hand over

The reranking layer, the dashboard, and a written account of what moved the numbers and by how much.

06Typical stack

Chosen per project. Named here so you can see the shape of it.

  • pgvector
  • Pinecone
  • OpenAI
  • Cohere Rerank
  • Braintrust

Questions we get asked

Next step

Tell us the outcome, not the tooling.

Send us the situation you are in. We will tell you which discipline it belongs to, what we would do first and what it costs, including when the answer is to wait.

Start a projectOr email us directlyinfo@sayfi.ai