WebDev Arena: LMArena WebDev Arena
Crowdsourced human-preference leaderboard for web-development generation run by LMArena. Voters compare two anonymous models building the same web app from a prompt and pick the better one; ratings use a Bradley-Terry model with 95% confidence intervals. Higher is better.
Configurations
1
tracked on this benchmark
Score band
1768.0 – 1768.0
best → lowest tracked
Snapshot trend
—
need ≥2 snapshots
Leaderboard
Tracked models ranked by Arena Score (higher is better).
Configuration: Gemini 4 Carbon (High)
Notes: LMArena WebDev leaderboard, webdev category, published 2026-10-28 (HF lmarena-ai/leaderboard-dataset @4491b06c, latest split). Board entry 'Gemini 4 Carbon (High)': rank 4, Arena Score 1768.2 (95% CI 1753.2-1783.2), 2230 votes. Google blog states 1768. Retrieved 2026-10-29.
Attribution. Source: LMArena (lmarena.ai), CC BY 4.0
How to read this benchmark
This benchmark scores models where higher is better. Use scores for directional filtering and shortlisting, not universal quality ranking; then validate pricing, context window, provider availability, and fit for your workload.
Trust this score when
- The row names the exact model configuration, benchmark version, evaluator, harness, and observation date.
- Cost, token, and step averages are evaluated together with the score for the same configuration.
- You validate the configuration in your own Cursor workload before making a model choice.
Be cautious when
- Rows are collapsed into one score per base model or compared across benchmark versions.
- Small score differences are treated as decisive despite Cursor's variance caveat.
- A qualified row, including Grok 4.5's disclosed training-data advantage, is used as neutral winner evidence.
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Last reviewed: Oct 29, 2026