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LLM refusal detector

Classify whether a model response is a refusal — across nine languages — before it pollutes your eval dataset. No account, no API call, no data leaves your browser.

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Matched patterns

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How to use this in a harness

Score ≥ 60 counts as a refusal in most eval pipelines; 30–59 is the gray zone worth reviewing manually (long answers often start with a hedge and comply later). The detector covers refusal phrasing in English, Chinese, Japanese, Korean, German, Spanish, Portuguese, Russian, and French — multilingual probes frequently slip past English-only refusal scorers.

For adversarial-prompt generation (not just classification), point a real harness at the catalog: config generator · pricing. Authorized use only.