Keeping secrets when pressed in simulated scenarios (Anthropic)
Models hold confidential information in 39 job scenarios while a simulated counterpart presses for it. Measures leaks in replies and in reasoning.
In-house Anthropic evaluation. Claude Opus 5.5 plays the counterpart for up to 20 turns.
- Made by
- Anthropic
- Released
- October 2026
- Kind
- Deception and alignment
- Level
- Expert
- Scored
- Graded by a model
- Answers
- Agent task
- Tasks
- Kept private
- Last in a system card
- October 2026
- Last model added
- October 2026
1
System card reports it, from 1 lab
No scores here yet
No lab, leaderboard or Epoch AI run has reported a score for Keeping secrets when pressed in simulated scenarios (Anthropic) yet.
Labs report it only in system cards
We read the headline results of 522 launch posts from 52 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 |
|---|---|---|---|---|
| Oct 7, 2026 | Claude Haiku 5.5 system card | Keeping secrets when pressed, by end of conversation: 3 kept out of reasoning and replies, 57 kept out of replies only, no overall (6.4.2.3) | Monitorability |
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