LMArena (Chatbot Arena)
Crowd-sourced human-preference leaderboard for models
LMArena (formerly LMSYS Chatbot Arena) ranks models by blind human head-to-head votes and became the most-watched real-world quality signal, influencing which models get attention. Its Elo leaderboard shapes narrative and adoption more than any single academic benchmark. Allegations of leaderboard-gaming underscore how much commercial value rides on it.
How it fits the stack
LMArena (Chatbot Arena) with what it depends on (above) and what it feeds (below). The figure renders as a crawlable diagram and upgrades to an interactive 3D graph as it scrolls into view.
LMArena (Chatbot Arena) in the AI stack. LMArena (Chatbot Arena) with its immediate upstream dependencies (top) and downstream dependents (bottom) in the AI value chain. Hover a node in 3D, or read the full relationships below.
Graph data (text) — 3 entities, 2 relationships
- LMArena (Chatbot Arena) —uses→ Claude (Opus / Sonnet)
- Gemini —used by→ LMArena (Chatbot Arena)
Depends on ↑ · 1