The AI coding engine for full stack and AI engineers

NLight works on your own machine, on your own code. Describe what you need and it writes, refactors and explains — across the stack, from your database to your UI.

Download NLight for Windows

Desktop installer for Windows 10 and 11 (64-bit).

Version 4.0.0
134 MB
Free to download

Download NLight

The download is a .zip. Extract it, then run the installer inside. Windows SmartScreen may warn about an unrecognised publisher — choose More info, then Run anyway.

NLight needs an access key. If you do not have one yet, write to [email protected] and we will set you up.

Three models, one app

Switch between them as your task changes.

NLight-flash

The everyday model. Fast, capable, and what you will use most of the time.

NLight-flashx

For harder problems that need longer, more careful reasoning.

Free modelFree

Connect your own free key and keep working at no cost. It does not use your monthly allowance.

The free model is shared worldwide, so it can be slower — or briefly unavailable — at busy times. When that happens, NLight-flash on your own allowance is unaffected.

Plans

Every plan includes the same full NLight feature set — the only difference is how much you can build each month. Usage is charged at a flat $0.75 per 1M tokens.

Plan	Monthly	Monthly allowance	Best for
Undergraduate	$15	20M tokens	Students learning to build
Developer	$75	100M tokens	Everyday professional work
Engineer	$150	200M tokens	Heavy daily use
AI Engineer	$300	400M tokens	Large codebases and long sessions

The Undergraduate plan requires Student ID verification. Need more than your allowance in a month? Top-ups are available from $2.

Before you start

Windows 10 or 11, 64-bit. macOS and Linux builds are in progress.
About 1 GB of free disk space for the app and its runtime components.
An NLight access key. Your key is tied to your plan and never leaves NLight's servers.
No AI provider account needed. You do not need keys from any model provider to use NLight-flash.