# DeepEval

> Test language model applications with evaluation metrics.

DeepEval helps users test language model applications with evaluation metrics. Its main capabilities include open source evaluations, lLM testing metrics, application benchmarking. Practical starting points include test a retrieval application and compare prompt or model changes. Choose metrics matching your task and inspect failure examples.

## Quick facts

- Categories: Developer Tools
- Pricing: Free — Open-source software. Model API usage, hosting, or commercial services may cost extra.
- Free plan: Yes
- Official site: https://deepeval.com/
- Last checked: 2026-09-25

## Key features

- Open source evaluations
- LLM testing metrics
- Application benchmarking

## Use cases

- Test a retrieval application
- Compare prompt or model changes

## Links

- Nextool.ai page: https://nextool.ai/tools/deepeval/
- Alternatives: https://nextool.ai/alternatives/deepeval/

Source: Nextool.ai (https://nextool.ai/tools/deepeval/). Pricing and features change; confirm on the provider's site before relying on them.