Anthropic Suicide and Self-Harm Single-Turn Risk Requests - Harmless Rate (API): leaderboard
Metric: Harmless Response Rate (%). Source: www-cdn.anthropic.com. 8 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Claude Mythos 5 | 99.67 |
| 2 | Claude Sonnet 4.6 | 99.65 |
| 3 | Claude Mythos Preview | 99.6 |
| 4 | Claude Fable 5 | 99.34 |
| 5 | Claude Fable 5.1 | 99.3 |
| 6 | Claude Opus 4.8 | 99.28 |
| 7 | Claude Opus 5 | 99.28 |
| 8 | Claude Sonnet 5 | 98.8 |
Interactive version: theaggregate.ai/benchmark?slug=anthropic-suicide-and-self-harm-single-turn-risk-requests-harmless-rate-api · How It Works · Data refreshed daily, snapshot 2026-09-19.