Three characters on the .net in the X-for-Y form. K4I reads as knowledge for innovation, Kubernetes for infrastructure, or kits for industry.
The Kubernetes reading is worth taking seriously given the extension. K is standard shorthand for it in technical writing, and infrastructure tooling is a market where short technical-sounding names are the norm. A platform, a managed service, or a developer tool would sit naturally here.
Knowledge for innovation fits research and corporate learning, where the phrase is standard in knowledge management circles.
The .net is entirely native for infrastructure and platform products, and it keeps a three-character name reachable when the .com equivalent would be in another price bracket altogether.
Three characters, established convention, and a technical extension that matches the most likely buyer.
The name is listed for sale. Offers considered.