LLM Features Your Users Actually Rely On

Copilots, RAG search, document AI and in-product chat, built by senior engineers directing AI coding agents. A production LLM MVP in 7 days, with evals, guardrails and a cost model from day one.

Duration: 7-day MVP, then weekly releases Team: 2-3 Senior LLM & Full-Stack Engineers

You might be experiencing...

Your RAG prototype answers well in the demo and confidently wrong in production
Token costs grow faster than usage because nobody designed caching or model routing
There is no eval suite, so every prompt change is a guess and every model upgrade is a risk
Arabic answers are weak, and nobody has tested the feature on real Gulf-dialect queries

We build the AI features that live inside your product: copilots, RAG search, document AI, chat in product and structured extraction. NomadX is an AI-native software studio inside an AI agents consultancy in Dubai, which means senior engineers direct AI coding agents like Claude Code, Codex and Cursor, working from a written spec with automated tests and CI/CD. The result is a production LLM app MVP in 7 days, and weekly releases after that.

What does an LLM app development company actually build?

An LLM app development company builds features where a language model reads, writes or reasons on behalf of your users, inside software you already own or are launching. The user stays in charge. The model answers, drafts, summarizes or extracts, and your app decides what to do with the result.

The five shapes we build most often:

  • Copilots. A side panel in your CRM, ERP or internal tool that drafts replies, summarizes a customer history or suggests the next step, grounded in the record the user is looking at.
  • RAG search and AI search. Ask questions over policies, contracts, product docs, tickets or a knowledge base, with citations back to the source paragraph and retrieval that respects who is allowed to see what.
  • Document AI. Invoices, trade licenses, Emirates ID scans, bank statements, tender documents. The model reads them and returns validated fields your system can trust.
  • Chat in product. Support or onboarding chat that knows your product, hands off to a human cleanly and logs every conversation.
  • Structured extraction. Turning emails, call notes or free text into typed JSON that feeds a workflow, with schema validation so a malformed answer never reaches your database.

LLM app vs AI agent: which one do you need?

You need an LLM app when the job is “answer, draft or extract, then let a person or your code decide”. You need an AI agent when the job is “plan several steps and take actions across systems without someone clicking each one”. They share models and tooling, but the risk profile, testing and guardrails differ.

If your use case is autonomous, like an agent that qualifies leads, books meetings and updates the CRM end to end, that is our AI agent development service. Plenty of teams start with an LLM feature, learn how users actually ask questions, and add agentic steps once the eval data says it is safe. We build both, so the architecture is ready for that step from the start.

How do we ship a production LLM MVP in 7 days?

We ship fast because the slow parts are written down early and the repetitive parts are done by agents in parallel. The spec, the eval set and the token budget exist on Day 1, so the build is checking against a target instead of exploring.

  • Day 1: Spec & architecture. User flows, data sources and permissions, model and retrieval choice, a first set of 30 to 50 real questions with expected answers, and a cost ceiling per request. This follows the spec-driven development approach we use everywhere.
  • Day 2-3: Clickable prototype. A preview URL wired to a sample of your real documents, so people react to actual answers, not wireframes.
  • Day 4-6: Build & test. Ingestion, chunking and retrieval, structured outputs, guardrails, auth, integrations. AI coding agents write boilerplate, adapters and tests while engineers own the retrieval design and the prompts. Evals run on every change.
  • Day 7: Production launch. CI/CD, tracing, cost dashboards, error tracking and handover. Then weekly iterations driven by eval scores and real traffic.

What is honestly not 7 days: a platform that searches across ten source systems with complex row-level permissions, or a feature in a regulated workflow that needs a compliance review. We still ship a first slice in a week and stage the rest in weekly increments, so you are learning from users the whole time.

How do we make LLM features reliable?

LLM application development fails in production for predictable reasons: retrieval returns the wrong chunk, the model invents an answer instead of saying “I don’t know”, or a prompt change silently breaks a case that used to work. We design for those failures directly.

  • Evals in CI. Golden questions, retrieval hit-rate checks, refusal tests and format checks run on every pull request. Our guide to evaluating AI systems covers the method.
  • Guardrails. Input checks for prompt injection and PII, output checks for policy and schema, and a defined fallback when the model is unsure. We compare the main options in our guardrails breakdown.
  • Citations by default. RAG answers link to the source, so users can verify and you can debug.
  • Tracing. Every request is traced with the retrieved context, the prompt version, the model and the cost, so a bad answer can be reproduced in minutes.

How do we keep generative AI costs predictable?

Cost control is designed on Day 1, not bolted on after the first big invoice. The levers are well understood, and most products need all of them.

  • Prompt caching for system prompts, tool definitions and long shared context. We explain how to structure prompts so they cache well in prompt caching explained.
  • Model routing through a gateway, so simple classification or extraction goes to a small, cheap model and only hard questions reach a frontier model. See model routing compared.
  • Leaner retrieval. Better chunking and reranking mean fewer tokens per answer and usually better answers too.
  • Per-tenant tracking so a SaaS product can see which customers drive cost and price accordingly.

Arabic LLMs and UAE data residency

For UAE products, Arabic quality is a requirement you test, not a checkbox. We build eval sets with real Arabic and code-switched Arabic-English queries, then compare frontier models with sovereign options like Jais and Falcon on your content. Our Falcon vs Jais vs K2 Think comparison explains where each fits.

When personal data is involved, PDPL and sector rules push hosting decisions early. We deploy in Azure UAE North or AWS me-central-1, or run open models in-country, and we build Arabic RTL interfaces properly rather than mirroring an English layout. Global clients get the same engineering without the residency constraints.

Which stacks do we build LLM apps on?

Any stack, because the model layer sits behind a gateway and a typed interface. In practice most new generative AI app development happens in Python with FastAPI for data-heavy pipelines, or TypeScript and Next.js for streaming chat UIs and copilots. We add LLM features to existing Go, Java and .NET systems just as often. Browse every option on the software development hub.

Hiring an in-house team vs working with a studio

Hiring a senior LLM engineer in Dubai takes months, and one person rarely covers retrieval, evals, frontend streaming and infrastructure. A studio gets the first version into production in a week, writes down every decision, and leaves your team with code, prompts and eval sets they own. Many clients do both: we ship and stabilize, their hires take over the roadmap.

If you need the whole product, not just the AI feature, start with AI-native MVP development. If the LLM feature needs a solid API underneath it, pair it with backend and API engineering.

Engagement Phases

Day 1

Spec & architecture

Written spec of the LLM feature, user flows, data sources and permissions, model and retrieval choices, a first eval set of real questions, and a token budget per request.

Day 2-3

Clickable prototype

A working prototype on a shareable preview URL, wired to a sample of your real documents or data, so stakeholders judge answer quality instead of mockups.

Day 4-6

Build & test

Ingestion pipeline, retrieval, structured outputs, guardrails, prompt caching and model routing, auth and integrations. Evals and automated tests run on every change.

Day 7

Production launch

CI/CD, tracing and cost dashboards, error tracking and handover. After launch we iterate weekly against the eval scores and real user feedback.

Deliverables

Production LLM feature (copilot, RAG search, document AI or in-product chat) inside your app
Ingestion and retrieval pipeline with access controls that respect your existing permissions
Eval suite with golden questions, run in CI on every prompt, model or retrieval change
Guardrails for prompt injection, PII and off-topic requests, plus structured output validation
Cost controls: prompt caching, model routing and per-tenant usage tracking
Tracing dashboards, runbook and a written spec your team can keep building from

Before & After

MetricBeforeAfter
Time to first production releaseA quarter of experiments and slide decks7 days to a live, monitored MVP
Answer qualityJudged by whoever tried it lastScored on a versioned eval set in CI
Cost per requestUnknown until the invoice arrivesBudgeted per feature, tracked per tenant
Arabic supportTranslated English promptsTested on real Arabic and code-switched queries

Tools We Use

Claude / GPT / Gemini Jais / Falcon Postgres + pgvector Qdrant / Weaviate LiteLLM / Portkey Langfuse Promptfoo Vercel AI SDK Pydantic / Zod Claude Code / Codex

Frequently Asked Questions

What is the difference between an LLM app and an AI agent?

An LLM app adds AI features inside your product: a copilot, RAG search, document extraction or chat. The user stays in control and the model answers or drafts. An AI agent plans and takes multi-step actions on its own across your systems. If you need autonomous workflows, see our AI agent development service; many products start with an LLM feature and add agents later.

Can you really ship an LLM app MVP in 7 days?

Yes, for a focused feature: one use case, one or two data sources, one user role. Day 1 is spec and architecture, Day 2-3 a clickable prototype on real data, Day 4-6 build and test, Day 7 production launch. LLM application development for regulated data or many integrations is staged in weekly increments after that first release.

Do you build RAG systems for UAE companies?

Yes. RAG development in the UAE is the most common request we get: search over policies, contracts, product docs or tickets, with citations and permission-aware retrieval. Where data residency matters we host in Azure UAE North or AWS me-central-1, or deploy open models in-country.

How do you keep LLM costs under control?

We set a token budget per request on Day 1, then use prompt caching for stable context, model routing so cheap models handle easy requests, retrieval that sends fewer and better chunks, and per-tenant usage tracking. Cost is a dashboard, not a surprise.

Do you support Arabic and sovereign UAE models like Jais and Falcon?

Yes. We test Arabic quality on real queries, including Arabic-English code-switching, and compare frontier models with Jais and Falcon on your own eval set. Sovereign models make sense when data must stay in-country or when the eval shows they win on your Arabic content.

How do you test an LLM feature before it goes live?

Every feature ships with an eval suite: golden questions with expected answers, retrieval checks, refusal and injection tests, and structured output validation. It runs in CI on every change, so a prompt tweak or model upgrade cannot quietly make answers worse.

Which languages and stacks do you build LLM apps in?

Any stack your product already uses. Most generative AI app development we do lands in Python (FastAPI) or TypeScript (Next.js), but we add LLM features to Go, Java, .NET and mobile apps too. The model layer sits behind a gateway, so swapping providers later is a config change.

Who owns the code and the prompts?

You do. Code, prompts, eval sets and infrastructure live in your repositories and cloud accounts from Day 1, with a written spec and runbook, so your team or ours can keep building.

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