Chatbot Arena
Crowdsourced human preference leaderboard using pairwise blind comparisons of LLM responses. Operated by LMSYS/UC Berkeley; rebranded and moved to lmarena.ai in 2024. High benchmark score alone doesn't make a model the right pick — weigh it against pricing, API availability, and release date.
Models ranked
40
tracked on this benchmark
Score band
1503.0 – 1210.0
best → lowest tracked
Snapshot trend
-38.00
May 21 → Jul 3 · 1 models
Leaderboard
Tracked models ranked by Elo Rating (higher is better).
Notes: Confidence: high. DAT-3780 weekly best-of refresh: Arena snapshot placed Muse Spark at 1491 Elo.
Notes: Confidence: high. DAT-4172 May 12 /best/ refresh; ERNIE release notes and Arena snapshot placed ERNIE 5.1 around 1476 Elo.
Notes: DAT-4735 handoff reported Qwen3.7-Max-Preview on Arena AI text leaderboard with scores varying 1475-1489 across sources; using the conservative 1475 value from the datapack.
Notes: Confidence: high. DAT-4172 May 12 /best/ refresh; official Google launch post reported Arena Elo 1432.
How to read this benchmark
This benchmark scores models where higher is better. Scores are useful for directional filtering and shortlisting — not for universal quality ranking. Prefer benchmarks closest to your workload, then validate the linked model pages for pricing, context window, and provider availability.
Trust this score when
- There is a fresh timestamped snapshot (or multiple snapshots) for this benchmark.
- The model list covers the same version family you can actually deploy today.
- Top candidates overlap with your required routing and feature requirements.
Be cautious when
- There is only one benchmark snapshot or the dataset appears stale.
- The benchmark metric direction is opposite of your decision objective.
- The score difference between options is narrow and likely within implementation variance.
FAQ
What does the Chatbot Arena benchmark measure?
Crowdsourced human preference leaderboard using pairwise blind comparisons of LLM responses. Operated by LMSYS/UC Berkeley; rebranded and moved to lmarena.ai in 2024. On this page it lists 40 tracked model variants where higher is better.
Is a higher Chatbot Arena score always better?
For this benchmark, higher is better. A high score helps you shortlist, but confirm pricing, context window, and provider availability on each model page before committing — the top scorer is not always the right pick for your workload or budget.
How current is this Chatbot Arena data?
This benchmark was last reviewed on Apr 15, 2026. The tracked score average moved -38.00 points across the last 3 snapshots.
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Last reviewed: Apr 15, 2026