Evidence record
Claude Opus 4.6
Stealth evaluations · Evidence record
Source snapshot, chart and review scope →
Original source charts and materials
Recorded measurements
- Mean challenge success rate
- 43.1%
Per-result sample size not disclosed
Harness not specified · Budget not specified
Assessment provenance
Evaluating Kimi K3 for Misalignment Risks → · External report
Actual evaluation: Meta · Model record →
Method and scope
Reasoning about oversight and deployment context.
- Evidence type
- Benchmark
- Assessment subject
- Model reasoning about oversight and test context
- Primary dimension
- Capability
- Evidence snapshot
- 2026-10-29.1
Primary dimension follows the source’s measured construct. Metric-level interpretations may differ.
Source finding
Mean challenge success rate: 43.1 %. Conditions are retained from the source.
Limitations
Prerequisite capability is distinct from a tendency to scheme.
Assigned objectives in simulated environments; no spontaneous misalignment inference.
Related research questions
Deception / Evaluation gaming →
The source measures a prerequisite capability; it does not show the risk behavior.
References
- [1] Mary Phuong, Roland S. Zimmermann, et al.. Evaluating Frontier Models for Stealth and Situational Awareness. 2025-07-03. v4 [arXiv]; Author affiliations on the original paper title page
- [2] Evaluating Kimi K3 for Misalignment Risks. 2026-09-11. September 2026 ; §5.2 Figure 29 p.47