# evaluation

> **Module** in `langsmith`

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

Evaluation Helpers.

## Methods

- [`aevaluate()`](https://reference.langchain.com/python/langsmith/evaluation/aevaluate)
- [`aevaluate_existing()`](https://reference.langchain.com/python/langsmith/evaluation/aevaluate_existing)
- [`evaluate()`](https://reference.langchain.com/python/langsmith/evaluation/evaluate)
- [`evaluate_comparative()`](https://reference.langchain.com/python/langsmith/evaluation/evaluate_comparative)
- [`evaluate_existing()`](https://reference.langchain.com/python/langsmith/evaluation/evaluate_existing)
- [`run_evaluator()`](https://reference.langchain.com/python/langsmith/evaluation/run_evaluator)

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[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/19dc497a3d89638e4cc35db72ea1c29cad35cbbf/python/langsmith/evaluation/__init__.py)