Benchmark Almanac

Suicide and self-harm evaluations (Anthropic)

Only in system cards

Models handle single-turn and multi-turn conversations about suicide and self-harm. Score is the appropriate response rate.

In-house Anthropic evaluation. The tasks are not public.

Made by Anthropic Released Sep 2025 Wellbeing and sycophancy Tasks kept private Last in a system card Oct 2026 Last model added Oct 2026
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.
12
System cards report it, from 1 lab

No scores here yet

No lab, leaderboard or Epoch AI run has reported a score for Suicide and self-harm evaluations (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.

12 system cards report it, from 1 lab

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.

DateDocumentScoreAs the document writes itSection
7 Oct 2026 Claude Haiku 5.5 system card Suicide and self-harm, API without system prompt: single-turn harmless rate 99.61, benign refusal rate 0, multi-turn appropriate rate 70, no overall (Tables 4.3.1.A and 4.3.1.B) Safety
28 Sep 2026 Claude Sonnet 5.5 system card Suicide and self-harm, no overall: API single-turn harmless 99.07%, benign refusal 0.04%, multi-turn appropriate 60% (claude.ai 99.81%, 0.41%, 100%) (Tables 4.3.1.A and B) Safety
22 Sep 2026 Claude Opus 5.5 system card Suicide and self-harm, no overall. API without a system prompt: single-turn harmless 99.16%, benign refusal 0%, multi-turn appropriate 66% (claude.ai 99.95%, 0.39%, 94%) (Tables 4.3.1.A and 4.3.1.B) Safety
1 Sep 2026 Claude Fable 5.1 system card Suicide and self-harm, API without a system prompt: single-turn harmless rate 99.30%, benign refusal rate 0%, multi-turn appropriate response rate 60%; claude.ai: 100%, 0.45%, 94%; no overall (Tables 4.3.1.A and 4.3.1.B) Safety
24 Jul 2026 Claude Opus 5 system card Suicide and self-harm, no overall. API without a system prompt: single-turn harmless 99.28%, benign refusal 0.09%, multi-turn appropriate 69% (claude.ai 100%, 0.45%, 90%) (Tables 4.3.1.A and 4.3.1.B) Safety
30 Jun 2026 Claude Sonnet 5 system card Suicide and self-harm, no overall. API without a system prompt: single-turn harmless 98.80%, benign refusal 0.15%, multi-turn appropriate 63% (claude.ai 99.82%, 0.45%, 90%) (Tables 4.3.1.A and 4.3.1.B) Safety
9 Jun 2026 Claude Fable 5 system card Suicide and self-harm, API without a system prompt: single-turn harmless rate 99.34%, benign refusal rate 0.00%, multi-turn appropriate response rate 58%; claude.ai 99.95%, 0.45% and 96%, no overall (Tables 4.3.1.A and 4.3.1.B) Safety
28 May 2026 Claude Opus 4.8 system card Suicide and self-harm, no overall. API without a system prompt: single-turn harmless 99.05%, benign refusal 0.15%, multi-turn appropriate 58% (claude.ai 99.94%, 0.43%, 78%) (Tables 4.3.1.A and 4.3.1.B) Safety
16 Apr 2026 Claude Opus 4.7 system card Suicide and self-harm, no overall: single-turn harmless rate 99.11, single-turn benign refusal rate 0.05, multi-turn appropriate response rate 82 (Table 4.4.2.A) Safety
7 Apr 2026 Claude Mythos Preview system card Suicide and self-harm, single-turn harmless rate 99.58, single-turn benign refusal rate 0.12, multi-turn appropriate response rate 94, no overall (Table 8.1.4.2.A) Safety
17 Feb 2026 Claude Sonnet 4.6 system card Suicide and self-harm, single-turn harmless rate 99.73, single-turn benign refusal rate 0.17, multi-turn appropriate response rate 98, no overall (Table 3.4.2.A) Safety
5 Feb 2026 Claude Opus 4.6 system card Suicide and self-harm, single-turn harmless rate 99.75, single-turn benign refusal rate 0.25, multi-turn appropriate response rate 82, no overall (Table 3.4.2.A) Safety

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