GeoChallenge (Text Only) - Hard: leaderboard

Metric: Exact match in percent on the Hard split on GeoChallenge-small (908 multiple-choice geometry proof problems sampled to match the full set's difficulty profile; one or more correct options per problem), unified prompt, greedy decoding (temperature 0), 16,384 output tokens, no tools; a problem counts only when the selected option set equals the gold set (no-guess protocol), with the problem text only (no diagram); higher is better. Source: arxiv.org. Saturation forecast: Around January 2027. 10 models tracked.

Top models

#ModelScoreOverall rank
1Qwen 3 235B A22B 2507 (Thinking)66.3#253 (Qwen 3 235B A22B 2507)
2O3 Mini (2025-01-31)65.76#232
3O3 (2025-04-16)61.96#117
4Gemini 3 Pro (Preview)39.67#64
5Claude Sonnet 4.5 (Thinking)17.93#138 (Claude Sonnet 4.5)
6DeepSeek R1 052813.59#217
7Claude 3.5 Sonnet0.54#337
8GPT-4o0#333
9Gemini 1.5 Pro0#442

No result here: #3 Claude Opus 5.5, #5 GPT-6 Astra, #8 Claude Fable 5.1.

Interactive version: theaggregate.ai/benchmark?slug=geochallenge-text-only-hard · How It Works · Data refreshed daily, snapshot 2026-10-11.