Hi, I'm Henry! 👋

I'm a Technical Program Manager at Constellation, where I coordinate frontier AI safety research across organizations and manage the Anthropic Fellows Program, supervising 15+ concurrent projects including interpretability, control, model organisms, model welfare, and robustness.

My work focuses on accelerating breakthrough research by connecting talented researchers with the resources, mentorship, and collaborative opportunities they need to tackle critical problems for AI Safety.

Previously, I led MATS London's 30-person AI safety research program, where our teams produced multiple significant research outputs including an ICML Best Paper on debating with LLMs.

Before focusing on AI safety, I co-founded the Global Challenges Project, and studied Classics (Philosophy) at Oxford. My hope is to ensure AI systems are beneficial to all current and future sentiences.

@August 22, 2025: I’m hiring for Research Program Managers at Constellation! Apply

Get in touch

Email / Google Scholar / Twitter / Linkedin

Recent research I’ve supervised:

I’ve contributed to work on llm safeguards & robustness, Finding Persona Vectors for Monitoring and controlling character traits in language models, a complex benchmark for AI sabotage attempts, and methods for improving / measuring LLM self-knowledge through introspection.

See more on my Google scholar.