An AI-native studio, run by engineers
We build software, AI agents and automation. We help businesses find where AI actually fits, then build and ship it with them.
- Founded
- 2020
- Based in
- Tunis, Tunisia
- Working with
- UK, UAE, EU
- Focus
- AI systems and the cost architecture behind them
Why we started
We started HorizonLux after seeing businesses struggle with outdated solutions and agencies that overpromise and underdeliver. Today the studio helps startups and established teams build AI-powered products that work in production and keep working as they grow.
That shows up in how we write, too. The twelve-post series on LLM cost exists because the same question kept arriving from clients and nobody was answering it with real numbers. Everything in it is sourced or measured, and the figures that are ours are labelled as ours.
Seif Sgayer
Founder, HorizonLux
Seif founded HorizonLux in 2020. The studio is based in Tunis and works with clients in the UK, the UAE and across the European Union. He writes the engineering guides published here and is the named author on every post in the LLM cost series.
- Large language model applications
- AI agent development
- LLM cost optimization
- Software architecture
How we build
Modern where it helps and boring where it should be: TypeScript and Next.js on the front, Node and Python behind it, Postgres for anything that matters, and the model layer chosen per task rather than by default.
Tell us what you are building.
A short call with the people who would do the work, not a sales team.
Book a Free 30-Minute Call
We map one workflow that eats your team’s week and show you what an engineer and a few AI agents could take off it. No slide deck, no sales pitch. Just a working session.
Don’t want a call? Email [email protected]
Book a free call- One workflow mapped with you, live
- A clear first step for your team
- Reply within one working day
We worked with Seif on the React Native app for our vehicle-appraisal platform. What stood out most was how much ownership he takes: he thinks a feature through, raises edge cases before they turn into bugs, and delivers something that actually works. And then there is one more thing why I wanted to work with Seif after our very first call: Exceptional clear and consistent communication. It is a pleasure to work with him and his team!
Michael EmaschowFounder, RepairCheck
Seif SgayerFounder ·View LinkedInFree Strategy Call
30 minutes · Google Meet · Free
No packages, no sales pitch. You leave with a clear first step.
- 30 min
- Google Meet
- Calendly
- No commitment
- The plan is yours to keep
- Built for teams at Tabeebi, RepairCheck and MasterPilot