CorX Labs

Human preference

LMArena Elo

Elo rating from blind pairwise votes by the public on LMArena. Measures what people prefer, not what is correct.

LMArena Elo is a rating, not a percentage 24 of the 159 models in this index report a score for it. The highest published figure here is 1439, from Gemini 2.5 Pro.


Reported scores

Top 20 on LMArena Elo

Ordered by the figure each maker published. Models that have not reported this benchmark are not listed — an absent score is not a low score.

Models ranked by published LMArena Elo score
#Model Published score
1Gemini 2.5 ProGoogle DeepMind1439Best
2Kimi K2 InstructMoonshot AI1420
3Llama 4 MaverickMeta AI1417
4Grok 3xAI1402
5Gemini 2.5 FlashGoogle DeepMind1393
6DeepSeek-R1DeepSeek1358
7Gemini 2.0 FlashGoogle DeepMind1356
8Qwen3-235B-A22BAlibaba Qwen1342
9Gemma 3 27BGoogle DeepMind1338
10DeepSeek-V3DeepSeek1318
11Command ACohere1305
12GPT-4oOpenAI1285
13Claude 3.5 SonnetAnthropic1268
14Llama 3.1 405BMeta AI1266
15Llama 3.3 70BMeta AI1257
16Qwen2.5-72BAlibaba Qwen1257
17GPT-4 TurboOpenAI1256
18Mistral Large 2Mistral AI1251
19Claude 3 OpusAnthropic1247
20Gemma 2 27BGoogle DeepMind1220

Where these numbers come from

Every score on this page is a published figure, taken from the model's own card, system card, technical report or release post, or from a public leaderboard. CorX Labs did not run these evaluations. Most are self-reported by the lab that built the model, which means they were produced under that lab's own choice of prompt, scaffold and number of attempts — so treat them as a starting point for a shortlist, not as a settled ranking.

A score someone other than the model's maker measured is marked Independent and names its measurer. Those are the stronger numbers on this page — an outside harness has no reason to flatter anyone — and there are not many of them.

Where a figure has not been published, the cell reads Not reported rather than an estimate. Nothing here is inferred, interpolated or guessed. Each model records the month its row was last checked. Full method and caveats.

How to read this score

LMArena Elo comes from blind pairwise votes by the public, so it captures something no static benchmark can: whether people prefer the answer. It cannot be gamed by training on a test set, because there is no fixed test set.

Where it is weak

It measures preference, not correctness. Length, formatting and confident tone all reliably win votes, and voters are self-selected rather than representative. A model can climb by being agreeable rather than by being right.