--- title: "litmus vs lighteval" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/google-litmus-vs-huggingface-lighteval" tools: ["google-litmus", "huggingface-lighteval"] --- # litmus vs lighteval *GraphCanon updated Sep 20, 2026* ## Verdict Pick litmus if litmus is an extensive GenAI application development platform for testing and evaluating LLM performance, featuring a user-friendly UI and deployment flexibility via CLI or manual setup; pick lighteval if lighteval is designed for evaluating language models across multiple backends. It integrates well with Hugging Face and provides a wide range of extras, making it particularly handy in. [litmus](https://google.github.io/litmus/) reports 52 GitHub stars, 9 forks, and 5 open issues, last pushed Mar 29, 2026. [lighteval](https://huggingface.co/docs/lighteval/en/index) has 2.5k stars, 552 forks, and 405 open issues, last pushed Aug 11, 2026. Figures are from public GitHub metadata via [litmus's repository](https://github.com/google/litmus) and [lighteval's repository](https://github.com/huggingface/lighteval). | | [litmus](/tools/google-litmus.md) | [lighteval](/tools/huggingface-lighteval.md) | | --- | --- | --- | | Tagline | A comprehensive LLM testing and evaluation tool for GenAI application development with user-friendly UI | All-in-one toolkit for evaluating LLMs across multiple backends | | Stars | 52 | 2,535 | | Forks | 9 | 552 | | Open issues | 5 | 405 | | Language | Vue | Python | | Adopt for | Litmus is an extensive GenAI application development platform for testing and evaluating LLM performance, featuring a user-friendly UI and deployment flexibility via CLI or manual setup. | Lighteval is designed for evaluating language models across multiple backends. It integrates well with Hugging Face and provides a wide range of extras, making it particularly handy in non-Windows environments. | | Persona | - | - | | Runtime | - | - | | License | Apache-2.0 | MIT | | Categories | Evaluation & Observability, Model Training | Evaluation & Observability | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [litmus](/tools/google-litmus.md) | [lighteval](/tools/huggingface-lighteval.md) | | --- | --- | --- | | Maintenance | Slowing (36%) | Active (82%) | | Days since push | 164d | 26d | | Open issues (now) | 5 | 405 | | Stars delta | +1 (30d) | +27 (30d) | | Open issues delta | 0 (30d) | +39 (30d) | | Full report | [trust report](/tools/google-litmus/trust.md) | [trust report](/tools/huggingface-lighteval/trust.md) | ## Decision facts: litmus - **Adopt for:** Litmus is an extensive GenAI application development platform for testing and evaluating LLM performance, featuring a user-friendly UI and deployment flexibility via CLI or manual setup. ## Decision facts: lighteval - **Adopt for:** Lighteval is designed for evaluating language models across multiple backends. It integrates well with Hugging Face and provides a wide range of extras, making it particularly handy in non-Windows environments. ## Choose when ### Choose litmus if… - litmus is primarily Vue; lighteval is Python. - License: litmus is Apache-2.0, lighteval is MIT. - Tags unique to litmus: api, apitesting, cicd, devops. - Also covers Model Training. - When deploying on Google Cloud with the need for CLI ease of use ### Choose lighteval if… - lighteval is primarily Python; litmus is Vue. - License: lighteval is MIT, litmus is Apache-2.0. - Tags unique to lighteval: evaluation, evaluation-framework, evaluation-metrics, huggingface. - When you need to evaluate the performance of various LLMs on different backend infrastructures, especially if you are working within Mac/Linux environments. ## When NOT to use litmus - In environments not using Google Cloud services and APIs - When manual setup for each component outweighs potential benefits of automation provided by Litmus CLI ## When NOT to use lighteval - Avoid Lighteval for evaluations on Windows systems as it is currently untested and not supported there. - Should you require a solution that does not integrate with or depend on the Hugging Face ecosystem, Lighteval might not fulfill your needs. ## Common questions ### What is the difference between litmus and lighteval? litmus: A comprehensive LLM testing and evaluation tool for GenAI application development with user-friendly UI. lighteval: All-in-one toolkit for evaluating LLMs across multiple backends. See the comparison table for live GitHub stats and shared categories. ### When should I choose litmus over lighteval? Choose litmus over lighteval when litmus is primarily Vue; lighteval is Python; License: litmus is Apache-2.0, lighteval is MIT; Tags unique to litmus: api, apitesting, cicd, devops; Also covers Model Training; When deploying on Google Cloud with the need for CLI ease of use. ### When should I choose lighteval over litmus? Choose lighteval over litmus when lighteval is primarily Python; litmus is Vue; License: lighteval is MIT, litmus is Apache-2.0; Tags unique to lighteval: evaluation, evaluation-framework, evaluation-metrics, huggingface; When you need to evaluate the performance of various LLMs on different backend infrastructures, especially if you are working within Mac/Linux environments. ### When should I avoid litmus? In environments not using Google Cloud services and APIs When manual setup for each component outweighs potential benefits of automation provided by Litmus CLI ### When should I avoid lighteval? Avoid Lighteval for evaluations on Windows systems as it is currently untested and not supported there. Should you require a solution that does not integrate with or depend on the Hugging Face ecosystem, Lighteval might not fulfill your needs. ### Is litmus or lighteval more popular on GitHub? lighteval has more GitHub stars (2,535 vs 52). Stars measure visibility, not whether either tool fits your constraints. ### Are litmus and lighteval open source? Yes - both are open-source projects on GitHub (litmus: Apache-2.0, lighteval: MIT). ### Where can I find alternatives to litmus or lighteval? GraphCanon lists graph-backed alternatives at [litmus alternatives](/tools/google-litmus/alternatives) and [lighteval alternatives](/tools/huggingface-lighteval/alternatives) ([litmus markdown twin](/tools/google-litmus/alternatives.md), [lighteval markdown twin](/tools/huggingface-lighteval/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/google-litmus-vs-huggingface-lighteval.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, litmus or lighteval? litmus: Slowing. lighteval: Active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for litmus and lighteval? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [litmus trust report](/tools/google-litmus/trust); [lighteval trust report](/tools/huggingface-lighteval/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=google-litmus`](/api/graphcanon/graph?tool=google-litmus) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_