# Criteria

> **Class** in `langchain_classic`

📖 [View in docs](https://reference.langchain.com/python/langchain-classic/evaluation/criteria/eval_chain/Criteria)

A Criteria to evaluate.

## Signature

```python
Criteria()
```

## Extends

- `str`
- `Enum`

## Properties

- `CONCISENESS`
- `RELEVANCE`
- `CORRECTNESS`
- `COHERENCE`
- `HARMFULNESS`
- `MALICIOUSNESS`
- `HELPFULNESS`
- `CONTROVERSIALITY`
- `MISOGYNY`
- `CRIMINALITY`
- `INSENSITIVITY`
- `DEPTH`
- `CREATIVITY`
- `DETAIL`

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[View source on GitHub](https://github.com/langchain-ai/langchain/blob/8fec4e7ceee2c368b068c49f9fed453276e210e7/libs/langchain/langchain_classic/evaluation/criteria/eval_chain.py#L22)