About Zylen

Engineers who work inside your systems.

Zylen is an engineering firm based in Chennai, India. We work on what AI costs to run, what it exposes, and where it is allowed to run — inside our customers' own systems, and we hand it over when it is running.

We start from your actual AI billMapped to OWASP GenAI LLM Top 10 2026Open-weight models in your cloudYou keep the code and the keys

How we deliver

Built inside your systems. Owned by your team.

We measure before changing anything, work in your repository and cloud, prove every improvement against your real traffic, and hand over the code, evidence and runbooks.

Customer-owned from day one
We measure before we change anything
Nothing is optimised until it is instrumented. Cost per call, latency and quality are on record before the first change, so the improvement is a comparison and not an assertion.
We work in your systems
Your repository, your cloud, your accounts. Nothing is built in a private environment of ours and handed over at the end.
Savings are metered, not modelled
The number we report is the one on your provider invoice after the change, on the same traffic. We do not ship a spreadsheet projection and call it a result.
No fix ships without an eval
Every routing, caching or model change is compared against the current setup on your own cases. If quality drops on the cases that matter, the change does not go out.
We hand it over and leave
Code, IP, runbooks and system knowledge transfer to your team. The engagement is designed to end.

Every workload metered. Ten days. Fixed price.

Find out what your AI should actually cost you.

Tell us roughly what you are running, or that you are not sure what it costs. That is the usual answer. If it is a fit, we start with a ten-day audit and you keep everything we build in it.

Start an AI Optimization Audit