I Stumbled on Anthropic's "Persona Selection Model" Paper — Here's My Take

Description and use

<p>I wasn't looking for this. I was reading through Anthropic's alignment blog for unrelated reasons and ran into a post called <a href="https://alignment.anthropic.com/2026/psm/" rel="noopener noreferrer">"The Persona Selection Model: Why AI Assistants might Behave like Humans"</a>, by Sam Marks, Jack Lindsey, and Christopher Olah. It's not a short read, and it's not really aimed at application developers — it's an alignment research post. But it reframes something I use every day (an LLM API, prompted to behave a certain way) in a way that changed how I think about what's actually happening

Problem

<p>I wasn't looking for this. I was reading through Anthropic's alignment blog for unrelated reasons and ran into a post called <a href="https://alignment.anthropic.com/2026/psm/" rel="noopener noreferrer">"The Persona Selection Model: Why AI Assistants might Behave like Humans"</a>, by Sam Marks, Jack Lindsey, and Christopher Olah. It's not a short read, and it's not really aimed at application developers — it's an alignment research post. But it reframes something I use every day (an LLM API, prompted to behave a certain way) in a way that changed how I think about what's actually happening

Outcome

<p>I wasn't looking for this. I was reading through Anthropic's alignment blog for unrelated reasons and ran into a post called <a href="https://alignment.anthropic.com/2026/psm/" rel="noopener noreferrer">"The Persona Selection Model: Why AI Assistants might Behave like Humans"</a>, by Sam Marks, Jack Lindsey, and Christopher Olah. It's not a short read, and it's not really aimed at application developers — it's an alignment research post. But it reframes something I use every day (an LLM API, prompted to behave a certain way) in a way that changed how I think about what's actually happening

Evidence

I Stumbled on Anthropic's "Persona Selection Model" Paper — Here's My Take

Source