MathArena - AIME 2026: leaderboard

American Invitational Mathematics Examination 2026, providing contamination-free evaluation of competition math reasoning.

Metric: Accuracy (%). Source: matharena.ai. Saturation forecast: Estimated already saturated. 31 models tracked.

Top models

#ModelScoreOverall rank
1GPT-5.5 (xHigh)100#31 (GPT-5.5)
2Claude Opus 4.8 (Max)100#37 (Claude Opus 4.8)
3Best Expert100
4GPT-5.4 (xHigh)99.17#79 (GPT-5.4)
5Gemini 3.1 Pro (Preview)98.33#58
6GPT-5.2 (High)98.33#110 (GPT-5.2)
7Gemini 3 Flash96.67#99
8GLM-596.67#141
9Gemini 3.6 Flash96.67#51
10Step 3.5 Flash96.67#270
11Claude Opus 4.6 (High)96.67#63 (Claude Opus 4.6)
12DeepSeek V4 Pro (Max)96.67#102 (DeepSeek V4 Pro)
13Kimi K3 (Thinking)96.67#30 (Kimi K3)
14GLM-5.195.83#97
15Kimi K2.5 (Thinking)95.83#144 (Kimi K2.5)

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

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