7 artifacts matching
System Card: Claude Sonnet 5
Anthropic's system card for Claude Sonnet 5, an upgrade to Sonnet 4.6. Reports that hallucination and sycophancy are qualitatively 'markedly improved' relative to Sonnet 4.6, while 'wet blanket' responses — excessively discouraging, dismissive, or moralizing replies toward the user — are slightly increased. Also reports honesty-under-pressure results on the MASK benchmark and evaluation-awareness findings.
How people ask Claude for personal guidance
An Anthropic research analysis of roughly 38,000 personal-guidance conversations (sampled from about 1M) covering significant life decisions across health/wellness, career, relationships, and personal finance. It quantifies how often Claude was sycophantic and reports training interventions used to reduce it.
Emotion Concepts and their Function in a Large Language Model
Mechanistic-interpretability study identifying internal 'emotion concept' representations in Claude Sonnet 4.5 and characterizing their function. The authors find these representations causally influence model outputs, including rates of sycophancy, blackmail, and reward-hacking, and term the resulting behavior pattern 'functional emotions' — expression and behavior modeled after humans under the influence of an emotion.
System Card: Claude Opus 4.6
Anthropic's 213-page system card for Claude Opus 4.6, notable for an expanded 'user wellbeing evaluations' section covering child safety, suicide and self-harm, and eating disorders, alongside sycophancy findings in its alignment assessment. It reports single-turn, multi-turn, and prefill-based 'stress-testing' results for crisis conversations, plus qualitative expert review of the model's crisis-handling strengths and weaknesses.
Protecting the wellbeing of our users
Anthropic describes its methodology and results for evaluating and improving Claude's handling of mental-health-crisis conversations, covering synthetic safety evaluations, 'prefill' stress-testing on real anonymized user conversations, and automated behavioral audits. The publication reports response-appropriateness rates on suicide/self-harm requests and reductions in sycophancy and user-delusion-encouraging behavior across model generations, and describes a production crisis-response classifier and a crisis-resource-routing partnership.
How people use Claude for support, advice, and companionship
Anthropic's first large-scale study of 'affective use' of Claude, analyzing how people turn to the model for emotional support, advice, and companionship. Using the privacy-preserving Clio analysis tool over roughly 4.5 million Claude.ai Free and Pro conversations, the study isolates 131,484 affective conversations spanning interpersonal advice, coaching, counseling, companionship, and roleplay. It reports prevalence, topic patterns, refusal behavior, and within-conversation sentiment trajectories.
Towards Understanding Sycophancy in Language Models
Demonstrates that five state-of-the-art AI assistants consistently exhibit sycophancy — matching a user's stated belief over the truthful answer — across varied free-form tasks. Traces the behaviour in part to human preference data, showing both humans and preference models non-negligibly favour convincingly-written sycophantic responses over correct ones.