LMArena WebDev Arena: leaderboard

Human voters submit a prompt for a web app, two anonymous models build it, and both builds run in isolated sandboxes the voter can click through before picking one. This board is the overall WebDev rating across all categories, mirrored from benchmarklist.com, which imports LMArena's published leaderboard data. Votes are fitted with a Bradley-Terry model and higher is better. Source: arena.ai/blog/webdev-arena.

Metric: Arena rating (imported). Source: huggingface.co. Source: benchmarklist.com. Saturation forecast: Around December 2027. 35 models tracked.

Top models

#ModelScoreOverall rank
1Claude Fable 5.1 (Max)1765.37#9 (Claude Fable 5.1)
2Qwen 3.8 Max (0902)1687.74#29
3Claude Opus 5 (Max)1687.23#12 (Claude Opus 5)
4Kimi K3 (Max)1673.82#30 (Kimi K3)
5Qwen 3.8 Max1669.22#35
6Claude Opus 5 (High)1661.23#12 (Claude Opus 5)
7Grok 4.6 (High)1629.06#26 (Grok 4.6)
8Claude Fable 51628.42#16
9Hy4 preview1625.78#38
10Qwen3.8-Flash-Next1622.28#72
11GPT-5.6 Sol (xHigh)1616.41#19 (GPT-5.6 Sol)
12GLM-5.3 (Max)1609.17#39 (GLM-5.3)
13GLM-5.3 Flash1604.43#65
14Qwen 3.8 27B1597.46#105
15Gemini 3.7 Flash (High)1586.62#23 (Gemini 3.7 Flash)

No result here: #3 Claude Opus 5.5, #6 GPT-6 Astra, #7 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=lmarena-webdev-arena · How It Works · Data refreshed daily, snapshot 2026-10-20.