Take the same pretrained checkpoint and turn it into an assistant. What changes when you ask it about its own feelings, thoughts, flaws, and inner experience? We tested this using 67 matched base/post-trained model pairs from 11 organizations, as part …

What is the “personality” of an LLM? What actually differentiates models psychometrically? Since LLMs entered public use, researchers have been giving them psychometric questionnaires, with mixed results. Their answers often do not seem to reflect the …