Chatbot Arena
About
Crowdsourced human preference leaderboard using pairwise blind comparisons of LLM responses. Operated by LMSYS/UC Berkeley; rebranded and moved to lmarena.ai in 2024.Compare model scores alongside pricing, API availability, and release date — high benchmark score alone doesn't make a model the right pick.
How to read this benchmark
This benchmark uses a scoring system where higher is better. Scores are useful for directional filtering and model shortlisting, not for universal quality ranking.
Interpretation checklist: prefer benchmarks that are closest to your workload style, then validate against the linked model pages for pricing, context window, and provider availability.
Trust when:
- There is a fresh timestamped snapshot (or multiple snapshots) for this benchmark.
- Model list covers the same version family you can actually deploy today.
- Top candidates overlap with your required routing and feature requirements.
Don't trust when:
- There is only one benchmark snapshot or the dataset appears stale.
- Benchmark metric direction is opposite of your decision objective.
- The score difference between options is narrow and likely within implementation variance.
Current modeled score band for tracked entries is roughly 1503.0 – 1488.0.
Window
May 12 to May 21
last 3 snapshots
Mean delta
+21.00
score points
Coverage
1
models in latest snapshot
Leaderboard preview (top 5)
- 1. Claude Opus 4.71503.0
- 2. Claude Opus 4.61501.0
- 3. Gemini 3.1 Pro Preview1493.0
- 4. Muse Spark1491.0
- 5. GPT-5.51488.0