Luzhan Studio
BCN · --:-- · v1.0
01 / IndexAvailable for new projectsLuzhan Studio — AI consulting · BarcelonaEst. 2026

I build
intelligent
products.

I'm Lu — and I help founders and product teams ship websites, apps, and agents that actually use AI well. No demos that fizzle in production. Just thoughtful, working software.

02 / Services

What I build.

A small studio doing a few things well. Every engagement is run by me, end-to-end — strategy, design, engineering, and the AI parts under the hood.

→ 01
Websites with AI baked in
Marketing sites and product pages where AI lives in the experience — search that understands intent, content that adapts, demos visitors can actually try.
Web→
→ 02
Mobile apps with AI features
iOS and Android apps where AI is the interface — voice, vision, conversation. Native feel, real performance, on-device when it matters.
Mobile→
→ 03
Custom agents & chatbots
Agents that take real actions — booking, drafting, deciding — wired to your tools and data. Not a wrapper around a prompt.
Agents→
→ 04
Process automation
Identify the boring, expensive parts of your operation and replace them with AI workflows that ship work overnight while you sleep.
Ops→
→ 05
LLM integration into existing products
You have a product. It needs intelligence. I integrate the right model, the right way, with eval pipelines so it keeps working as you scale.
Integration→
→ 06
RAG & semantic search
Retrieval systems that make documents, support tickets, and codebases queryable in natural language — with citations, not hallucinations.
RAG→
→ 07
Strategic AI advisory
Sometimes you don't need code. You need a clear-eyed read on what to build, what to skip, and where AI actually moves the needle.
Advisory→
03 / Live demo

Talk to my AI.

A small example, running live in your browser. Ask about my work, the projects I take on, or how I'd approach yours. Same primitives I'd use to build for you.

luzhan.chat — live
Ask me anything. I'll answer like Lu would.
Pick a prompt below or type your own
$
04 / Process

How we work.

Four phases. Honest scoping up front. Working software in week two. No mystery boxes.

phase 01
Discovery
Week 1 · Free
A 60-min call to map the problem, success metric, and whether AI is even the right answer. I'll tell you if it isn't.
phase 02
Strategy
Week 1–2
A short written brief: scope, model choices, risks, eval plan, timeline. You decide what to ship in v1.
phase 03
Build
Week 2–8
Tight loops, shipping every few days. You see real progress, not slide decks. I work as part of your team.
phase 04
Iterate
Ongoing
Models drift, users surprise. I stay on for evals, tuning, and the inevitable "could it also do this?"
05 / About

Hi, I'm Lu.

Founder, sole engineer, occasional designer. Based in Barcelona. Quietly obsessed with how machines reason.

LU
CEO · Luzhan Studio
Barcelona, ES

7 yrs · Engineering · ML
40+ AI products shipped
1:1 · Senior · hands-on

Most AI projects fail for the same reasons. I built Luzhan to solve them.

Unclear scope. The wrong model picked too early. No plan for what happens after the demo.

I work alone, by design. You hire me, you get me — not a project manager, not an offshore team. I write the code, design the prompts, set up the evals, and stay long enough to make sure it works in production, not just in screenshots.

I've shipped AI features for fintech, health, B2B SaaS, and consumer apps. The stack changes. The discipline doesn't.

Stack I reach for
Claude / GPT / GeminiTypeScriptNext.jsSwift / KotlinPythonPostgres + pgvectorLangGraphModal / Vercel
06 / FAQ

Common questions.

If yours isn't here, just ask the AI above — or send me an email.

01How much does an AI project cost?
+
It depends on scope, but most engagements land between €8K (a focused integration or prototype) and €60K (a full product build). I always quote a fixed price after the discovery call so you're not buying a blank check.
02Do you sign NDAs?
+
Yes, always. Mutual NDA before the discovery call if you'd like — I have a standard one ready, or I can sign yours.
03Will the AI hallucinate? How do you prevent it?
+
Hallucination is a system problem, not a prompt problem. I build with retrieval grounding, structured outputs, validation layers, and automated evals so you have measurable confidence — not vibes.
04I have an existing product. Can you just add AI to it?
+
Yes — this is half my work. I integrate alongside your team, respect your stack, and leave the codebase cleaner than I found it. Documentation included.
05What if I'm not sure AI is what I need?
+
Then you definitely should book the discovery call. It's free, and I'll be honest if a simpler tool solves your problem better. I'd rather lose a project than build the wrong thing.
06Where are you based and do you take remote work?
+
Barcelona, Spain. I work with clients globally — async by default, with weekly syncs in your timezone. Happy to fly out for kickoffs when it makes sense.

Tell me about
your project.

One email, one short call, and we'll know if it's a fit. No pitch decks, no follow-up sequences.

Send email
↳ hello@luzhanstudio.com