# ComparisonEvaluationResult

> **Class** in `langsmith`

📖 [View in docs](https://reference.langchain.com/python/langsmith/evaluation/evaluator/ComparisonEvaluationResult)

Feedback scores for the results of comparative evaluations.

These are generated by functions that compare two or more runs,
returning a ranking or other feedback.

## Signature

```python
ComparisonEvaluationResult()
```

## Extends

- `BaseModel`

## Properties

- `key`
- `scores`
- `source_run_id`
- `comment`

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[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/cf0366388873e33ef593235c1d0c7e561db79cfb/python/langsmith/evaluation/evaluator.py#L139)