Memo: Brown Just Quietly Proved That Your Prompt Is Lying to You. Project Deal Already Proved It in a Different Domain. Nobody Has Connected Them.
A Brown University study of 110 therapy sessions, presented at AAAI/ACM and broadly covered in March 2026, found that improved prompting did not resolve the core ethical violations of LLMs acting as mental health counselors. Two months later, Anthropic's Project Deal published the same finding in a