Organization

LMArena

The team behind the crowdsourced head-to-head model leaderboard of the same name, which began as the LMSYS Chatbot Arena in 2023.

Sources

Attribution and reporting linked by this record; links do not imply independent verification.

Welcome to December 17, 2025 (theinnermostloop.substack.com)

LMArena runs the LMArena leaderboard, where anonymous pairwise votes between models are aggregated into rankings; it started in April 2023 as the LMSYS Chatbot Arena (site). In this corpus it appears only as the publisher of that leaderboard.

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Development timeline

Newest reporting dates first. Reporting dates may differ from event dates.

2026-10-03: Argon reportedly leads Text Arena

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Referenced by

LMArena

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LMArena
Innermost Loop KB — secondary record
Reporting date: unknown
KB permalink: https://nicholsn.github.io/innermost-loop-kb/organizations/lmarena
Attributed sources:
- Welcome to December 17, 2025 — https://theinnermostloop.substack.com/p/welcome-to-december-17-2025
This citation does not imply independent verification of linked-source claims.

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