Key Takeaways
- GPT-4o scores 88.7% on MMLU benchmark via lmarena eval
- Claude 3.5 Sonnet 87.2% MMLU
- Llama 3.1 405B 86.5% MMLU 5-shot
- GPT-4o achieved an Elo rating of 1312 in the LM Arena leaderboard as of October 2024: June 2026
- Claude 3.5 Sonnet holds the top position with a Quality Index of 87/100 on lmarena.ai
- Llama 3.1 405B scored 84 in Quality Index, trailing Claude by 3 points
- Claude 3.5 Sonnet context window of 200K tokens
- GPT-4o supports 128K input context
- Llama 3.1 405B has 128K context length
- LM Arena has over 2.5 million user votes collected since launch
- Average daily battles on lmarena.ai exceed 50,000 as of Q3 2024
- 1.2 million unique users participated in LM Arena voting
- Claude 3 Opus has 85% win rate against GPT-4 in pairwise battles
- GPT-4o wins 62% of battles vs Llama 3.1 405B
- Llama 3.1 405B beats Claude 3 Opus in 55% of matchups
GPT-4o leads on MMLU while Claude 3.5 Sonnet tops LM Arena quality index and the leaderboard.
Related reading
01 · Category
Benchmark Scores23 stats
Benchmark Scores Interpretation
02 · Category
Model Rankings24 stats
Model Rankings Interpretation
03 · Category
Technical Specs21 stats
Technical Specs Interpretation
04 · Category
User Interactions20 stats
User Interactions Interpretation
05 · Category
Win Rates21 stats
Win Rates Interpretation
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
Daniel Varga. (2026, February 24). LMArena Statistics. Gitnux. https://gitnux.org/lmarena-statistics
Daniel Varga. "LMArena Statistics." Gitnux, 24 Feb 2026, https://gitnux.org/lmarena-statistics.
Daniel Varga. 2026. "LMArena Statistics." Gitnux. https://gitnux.org/lmarena-statistics.
Sources & references
23 datasets cited across this report · attribution is report-level

