google/litmus

Litmus is a comprehensive LLM testing and evaluation tool designed for GenAI Application Development. It provides a robust platform with a user-friendly UI for streamlining the process of building and assessing the performance of your LLM-powered applications.

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Established

Litmus is a tool for developers working with Generative AI. It helps you thoroughly test and evaluate your Large Language Model (LLM) applications by providing a platform to define test cases, run them against your LLM, and compare the outputs to expected results. Developers can use a web interface to set up tests, feed in various inputs, and then analyze the LLM's responses using AI-powered evaluation metrics.

Use this if you are developing applications powered by Large Language Models and need a robust way to systematically test, evaluate, and monitor their performance and quality.

Not ideal if you are an end-user simply consuming an LLM application and don't need to build or evaluate one yourself.

Generative AI development LLM evaluation Application testing AI quality assurance MLOps
No Package No Dependents
Maintenance 10 / 25
Adoption 8 / 25
Maturity 16 / 25
Community 16 / 25

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Stars

45

Forks

8

Language

Vue

License

Apache-2.0

Last pushed

Feb 20, 2026

Commits (30d)

0

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