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Evals & observabilityconfident-ai

deepeval

A pytest-style framework for testing LLM apps: ready-made metrics for RAG, agents and chatbots, plus trace-based checks. Results can be pushed to a cloud.

Who it is for

For Python developers who want unit tests for model answers.

How to start

  1. Install: pip install -U deepeval.
  2. Optionally log in to the platform: deepeval login.
  3. Write your first test case from the README example and run deepeval test run.

Steps are taken from the README. Check the current version in the repository before running them.

Stars over the last 30 days

+533Sep 6 — Oct 5
18,10218,635

Author's description

The LLM Evaluation Framework

langfuse

langfuse

An open platform that shows every model call: traces, cost, quality scores and prompt versions. Use it in the cloud or self-host it.

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mlflow

mlflow

A long-standing ML platform that now covers LLM apps too: tracing, evaluation, a prompt registry and a model gateway. Plugs into most frameworks.

28Kstars+455 in 30 dPython

promptfoo

promptfoo

A command-line tool for testing prompts and agents: describe cases in a config and compare models. Also does red teaming and vulnerability scanning. Plugs into CI.

26Kstars+919 in 30 dTypeScript

comet-ml

opik

A platform for debugging and evaluating LLM apps: traces, automated quality checks and dashboards. Supports RAG and agent chains, and can be self-hosted.

22Kstars+618 in 30 dPython

openai

evals

OpenAI's framework for evaluating models plus a registry of ready-made benchmarks. A historically important project that shows how eval templates are structured.

20Kstars+181 in 30 dPython

vibrantlabsai

ragas

A metrics library for evaluating RAG and other LLM apps: it checks how well an answer relies on retrieved sources. Can also generate test sets.

16Kstars+322 in 30 dPython