LMArena
productai_benchmark
Overview
Developed byLMSYS Org
Open source✓ Open Source
Use casecrowdsourced LLM evaluation through blind pairwise human preference voting
Also see
Alternative to
Knowledge graph stats
Claims8
Avg confidence97%
Avg freshness99%
Last updatedUpdated 16h ago
Trust distribution
100% unverified
Governance

LMArena

product — also known as: LM Arena

Platform for crowdsourced LLM evaluation through blind pairwise comparisons, formerly Chatbot Arena

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used by

ValueTrustConfidenceFreshnessSources
AnthropicUnverifiedHighFresh1

alternative to

ValueTrustConfidenceFreshnessSources
LMSYS Chatbot ArenaUnverifiedHighFresh1

evaluates

ValueTrustConfidenceFreshnessSources
overall LLM quality via Elo ratings from human preferenceUnverifiedHighFresh1

open source

ValueTrustConfidenceFreshnessSources
trueUnverifiedHighFresh1

primary use case

ValueTrustConfidenceFreshnessSources
crowdsourced LLM evaluation through blind pairwise human preference votingUnverifiedHighFresh1

first released

ValueTrustConfidenceFreshnessSources
2023UnverifiedHighFresh1

developed by

ValueTrustConfidenceFreshnessSources
LMSYS OrgUnverifiedHighFresh1

created by

ValueTrustConfidenceFreshnessSources
UC BerkeleyUnverifiedHighFresh1

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Claim count: 8Last updated: 4/10/2026Edit history