---
title: "John Alexander Kamau (@itsxander-aj3) | Hashnode"
description: "John Alexander Kamau (@itsxander-aj3) writes on Hashnode. Read their latest articles and follow their work."
url: "https://hashnode.com/@itsxander-aj3"
---

@itsxander-aj3

# John Alexander Kamau

@itsxander-aj3 · Nairobi, Kenya · Joined October 2026

### [We ran HealthBench on our health AI's safety layer. It scored lower than the bare model.](https://tabibu.hashnode.dev/we-ran-healthbench-on-our-health-ai-s-safety-layer-it-scored-lower-than-the-bare-model?utm_source=hashnode&utm_medium=feed)

A 150-conversation HealthBench subset, a safety layer that costs points, one real dose leak we found while measuring, and what moved the score.

6 min read · [tabibu.hashnode.dev](https://tabibu.hashnode.dev/we-ran-healthbench-on-our-health-ai-s-safety-layer-it-scored-lower-than-the-bare-model?utm_source=hashnode&utm_medium=feed)

[Oct 6](https://hashnode.com/posts/we-ran-healthbench-on-our-health-ai-s-safety-layer-it-scored-lower-than-the-bare-model/6ac492c60bda01f274b983e0)