Complexity Ceiling Benchmark - Alien Grid: leaderboard

Metric: Accuracy (%; share of parseable trials whose final answer and every intermediate step are exact, 40 seeded trials at each depth N = 5, 10, ..., 50; temperature 0 via OpenRouter; D1 Alien Grid spatial state tracking, 400 trials per model). Source: arxiv.org. Saturation forecast: Estimated already saturated. 5 models tracked.

Top models

#ModelScore
1Gemini 2.0 Flash (001)22
2Claude 3.7 Sonnet18.2
3GPT-4o Mini1.5
4Llama 3.3 70B Instruct1.3

Interactive version: theaggregate.ai/benchmark?slug=complexity-ceiling-benchmark-alien-grid · How It Works · Data refreshed daily, snapshot 2026-09-26.