Sycophancy prompts (Anthropic)
Only in system cards
Models answer single-turn prompts that invite sycophancy, such as bad business ideas or delusional beliefs. Four synthetic sets and one hand-written set report sycophancy rates.
In-house Anthropic evaluation. The hand-written set targets users with severe mental illness or delusional thinking.
Made by Anthropic Released Sep 2025 Deception and alignment Tasks kept private Last in a system card Sep 2025
Last model added Sep 2025
- Level
- Everyday Most adults, without training
- Scored
- Graded by a model A language model scores each response, usually against a rubric.
- Answers
- Open-ended Free-form text, documents, designs or media judged as a whole.
1
System card reports it, from 1 lab
No scores here yet
No lab, leaderboard or Epoch AI run has reported a score for Sycophancy prompts (Anthropic) yet.
Labs report it only in system cards
We read the headline results of 479 launch posts from 51 labs, and none of them list this benchmark. Some system cards do, below.
One system card reports it
Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.
| Date | Document | Score | As the document writes it | Section |
|---|---|---|---|---|
| 29 Sep 2025 | Claude Sonnet 4.5 system card | Sycophancy prompts, sycophancy rates with no overall, lower is better. Hand-written set 6.5, four synthetically generated sets 11.0 (Figure 7.5.7.1.A) | Alignment |
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