Show HN: Muteval – mutation testing for your LLM evals
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Ashwin1121
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Ashwin1121
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Terms in this piece · Glossary
LLM — A large language model — the neural network behind tools like Claude and ChatGPT, trained on huge amounts of text to predict what comes next.
eval — A repeatable test for AI quality — a set of tasks plus scoring — used the way software teams use test suites, because model output is too variable to judge by eyeballing.
Why it matters
A passing evalA repeatable test for AI quality — a set of tasks plus scoring — used the way software teams use test suites, because model output is too variable to judge by eyeballing.Full definition → suite is not evidence the suite would catch a regression, and mutation scoring is a concrete way to measure that gap.
articlesmevals - a small eval suite for evaluating models, prompts, and harnessesSimon Willison
articleWhen Knowledge Changes: Metamorphic Testing of RAG Systems with MutationsJinhan Kim, Samuele Pasini, Paolo Tonella
articleHow well LLM-based test generation techniques perform with newer LLM versions?Michael Konstantinou, Renzo Degiovanni, Mike Papadakis