What is LiveBench?
Contamination-resistant objective tasks. Only compare scores from the same LiveBench release.
A benchmark that tries not to leak
LiveBench publishes new questions on a schedule so models cannot memorize the test from the public internet. That is the point: static exams leak into training data. Scores are percentages on that release’s suite.
Only compare two LiveBench numbers if they share a release. A 70 on last quarter’s set is not the same as a 70 on this quarter’s set. CompareLLM keeps the snapshot date so mixed-era cells are visible.
What it does not replace
LiveBench is not human preference (Elo) and not repo-level coding (SWE-bench). A model can lead LiveBench and still lose a chat vote or fail your private eval. Use it as one dated column.
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Related guides
Same topic, next level of detail.
What is Elo on an AI leaderboard?
Elo is a crowd vote: people pick which hidden answer they like more. A higher Elo means more people preferred that model — not that it passed a test.
SWE-bench vs preference Elo
Why the best coding model is not always the best chatbot, and how CompareLLM keeps both numbers visible.
How to read LLM benchmarks without getting fooled
A short checklist: same split, same date, named source, no composite index you cannot audit.
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