How LightFern Delivers Real-Time Personalized AI for Email

What if AI could write like the best version of you, directly within your inbox? Lightfern is building personalized, privacy-first AI for professional communication. Its autocomplete learns from context and writing style to provide suggestions with every keystroke, without requiring users to leave their existing email inbox. In this customer story, co-founder and research lead Matthew Lee explains why latency, privacy, and reliability are essential to the product. After moving to Nebius AI Cloud, Lightfern achieved sub-400 millisecond P99 latency and zero downtime, with a dedicated Nebius engineer helping the team move its internally trained models into production. See how a small team is building AI that can keep up with the speed of human thought. Links Lightfern: https://lightfern.com/ Nebius AI Cloud: https://nebius.com/ See how other teams build on Nebius: https://www.youtube.com/playlist?list=PLL30rV4wd9h4