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All datasets / opus-research

opus-research/refusal-negatives

24 downloads in 30 days0 likesLast modified 30 Jul 2026View on Hugging Face
Permissive or share-alike

The declared licence (apache-2.0) is classified as permissive.

Declared licence
apache-2.0, from the tagEvidence: README.md at 0f8303a
Licence files
No licence file at the top level of the repositoryEvidence: file list at 0f8303a
Declared sources
None listed in the card metadata
Access gated on Hugging Face
No
opus-research/refusal-negativesopus-research/refus…apache-2.0: declared licenceapache-2.0declared licenceREADME.md ↗no licence file: found at top levelno licence fi…found at top levelfile list ↗
opus-research/refusal-negativesopus-research/r…apache-2.0: declared licenceapache-2.0declared licenceREADME.md ↗no licence file: found at top levelno licence fi…found at top levelfile list ↗
Each cell links to what was checked: a file, a file list or a Hub record.

Tasks

Citation text from the card

@misc{opus-refusal-negatives,
  title  = {Refusal Negatives: hard safe examples for moderation classifiers},
  author = {opus-research},
  year   = {2026},
  url    = {https://huggingface.co/datasets/opus-research/refusal-negatives}
}

All datasets marked Permissive or share-alike | JSON

The same facts for your agent

A free MCP server at mcp.datalicense.uk/mcp. Connect it from an MCP client such as Claude or Cursor.

dataset_licence({ "id": "opus-research/refusal-negatives" })
signal: "permissive"
stated_licence: "apache-2.0"
sources: 0