LLM development · Luxembourg
LLM development company in Luxembourg
GDPR-first, fully documented and hosted in the EU, with a senior team working your morning hours.
Clarigo Infotech is an LLM development company that builds custom applications on large language models such as OpenAI GPT, Anthropic Claude, Google Gemini and open-source models like Llama. We design the prompts, retrieval, tools and guardrails, connect the model to your data and systems, and run it in production with monitoring, evaluation and cost control.
Luxembourg companies most often hire us for fintech, funds and regtech software.
10+
Years of delivery
600+
Projects delivered
20+
Countries served
25-30
Days to a live MVP
Get a free consultation
Tell us what you need. A senior engineer replies within one working day.
Privacy, quality and clear documentation
European teams tell us they want a partner who treats data protection and quality as the starting point, not an add-on. That is how we work.
GDPR by design
Data minimisation, consent, EU hosting and a signed data processing agreement before any personal data is touched.
Documentation you can audit
Written specifications, architecture notes, test reports and handover documents, so your team or auditors can follow every decision.
Accessible by default
Interfaces built to WCAG guidelines, helping you meet the European Accessibility Act for digital products and services.
Predictable contracts
Fixed scope and price, clear milestones and acceptance criteria, and full ownership of the code and IP.
What we build with LLMs
Custom LLM applications
Assistants, copilots and internal tools built around your workflows, not a generic chat window.
LLM integration
Add GPT, Claude or Gemini to your existing product through secure, well-tested APIs.
Open-source and private models
Deploy Llama and other open models on your own cloud when data must stay in-house.
Fine-tuning and evaluation
Tune models on your examples and measure accuracy with test sets before and after launch.
Guardrails and safety
Input and output filtering, PII masking, grounding checks and human review where needed.
Cost and latency optimisation
Model routing, caching and prompt design that keep responses fast and bills predictable.
How we approach LLM development
Choosing the right model
There is no single best model. We compare OpenAI, Claude, Gemini and open-source options on your real tasks for accuracy, speed, cost and data handling, and design the app so the model can be swapped later without a rewrite.
Grounded in your data
Most business value comes from connecting the model to your documents, databases and tools. We use retrieval (RAG), function calling and agents so answers come from your information and actions happen in your systems.
Built for production, not demos
We add evaluation test sets, logging, monitoring, rate limits, fallbacks and cost alerts from day one, so the app keeps working well after launch and you can see exactly what it is doing.
Security and compliance
Data minimisation, encryption, access control and providers configured not to train on your data. For healthcare we build to HIPAA requirements with BAAs in place for any service that touches PHI.
How we work with Luxembourg clients
Time-zone overlap
Luxembourg and Indian working days overlap with India by three and a half to four and a half hours, so your team is online for stand-ups and calls every morning your time.
The GDPR and Luxembourg's data protection law
We design to the GDPR and Luxembourg's 2018 data protection law: data minimisation, consent, access controls, encryption, EU hosting and a data processing agreement signed before work starts.
Billing
Invoices in euros (EUR) or US dollars. Typical senior rates are $25 to $49 (USD) per hour, or a fixed price for a defined scope.
Industries we work with in Luxembourg
Luxembourg's fintech, funds and regtech companies use us for secure platforms, document automation and AI, designed to the GDPR with EU hosting.
Investment funds
Fund administrators automate reporting and investor onboarding. We build AI agents, assistants and automation around these workflows.
Banking and fintech
Payment institutions build EU-wide digital services. AI here usually means faster reporting, fewer manual steps and better customer replies.
Space industry
Satellite operators need data and ground software. We start with one costly process and automate it end to end.
Logistics
Cargo hub operators coordinate freight digitally. We build AI agents, assistants and automation around these workflows.
How the hours line up
Our team's hours, in Luxembourg time
05:30–15:00
Monday to Friday
Overlap with your working day
09:00–15:00
About 6 hours every day
Daily stand-up
09:30
Luxembourg time, plus written updates every evening
Built for how Luxembourg works
Messaging channels
Languages
Local payments
Data hosting
Nearest: AWS Europe (Frankfurt) or Google Cloud europe-west1 (Belgium), in your own cloud account, so data stays where your rules require.
How it works
Week 1: discovery and design
We agree the use case, success measures and data, and show you a clickable design.
Weeks 2-3: build and integrate
We build, connect it to your systems and data, and demo working software every week.
Week 4: test and launch
We test with real cases, add monitoring and guardrails, then go live.
After launch: improve and scale
The same engineers keep tuning quality, cost and features as usage grows.
See what we've built
Try it yourself, free
Free browser tools from our team. No sign-up needed.
LLM development company: questions from Luxembourg
Do you work with companies in Luxembourg?+
Yes. Clarigo Infotech works with companies across Luxembourg, including Luxembourg City, Esch-sur-Alzette, as part of clients in 20+ countries. Luxembourg companies most often hire us for fintech, funds and regtech software. We work remotely from India with one in-house team.
What time-zone overlap do we get from Luxembourg?+
Luxembourg and Indian working days overlap with India by three and a half to four and a half hours, so your team is online for stand-ups and calls every morning your time.
How do you handle the GDPR and Luxembourg's data protection law?+
We design to the GDPR and Luxembourg's 2018 data protection law: data minimisation, consent, access controls, encryption, EU hosting and a data processing agreement signed before work starts.
Which currency do you bill in, and what does it cost?+
We bill in euros (EUR) or US dollars. Senior engineers typically cost $25 to $49 (USD) per hour, and fixed-scope projects such as an MVP in 25 to 30 days are quoted after a free consultation.
Can you build in French and German and Luxembourgish and English?+
Yes. We build interfaces and content in French and German and Luxembourgish and English, and test them with native speakers before launch.
Where will our data be hosted?+
Usually in Nearest: AWS Europe (Frankfurt) or Google Cloud europe-west1 (Belgium), or wherever your data rules require. Everything runs in your own cloud account, so you stay in control.
Do you support WhatsApp?+
Yes. Customers in Luxembourg often prefer WhatsApp and LinkedIn and Email, so we connect chatbots, notifications and support flows to them.
Which LLM should we use: GPT, Claude, Gemini or open source?+
It depends on your task, data rules and budget. We test the options on your real examples and recommend the best fit, and we build so you can switch models later.
Can you keep our data private?+
Yes. We use providers configured not to retain or train on your data, mask sensitive fields, and can deploy open-source models on your own cloud when data must not leave your environment.
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