Photonic PCFBench - Structure Counting: leaderboard

PCFBench v1 Appendix full results; 26 isolated tasks across six categories; temperature0.1, task-specific64–2048token budgets; native fractions/errors. Paired structure+field and Field-only contexts separate. Closed-loop success uses expert sign/magnitude constraints, not physical resimulation; Human Score mean of six dimensions/two experts on120samples. Source-disputed summary/appendix cells and unbound checkpoint variants withheld.

Metric: Exact accuracy. Source: arxiv.org. Saturation forecast: Around February 2027. 33 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 3 Flash0.76#103
2GPT-50.48#105
3Claude Opus 4.5 (Thinking)0.46#87 (Claude Opus 4.5)
4O30.45#132
5GPT-4.10.44#258
6Claude Opus 4.5 (Non-reasoning)0.42#87 (Claude Opus 4.5)
7GPT-5 Mini0.41#193
8GPT-4.1 Mini0.4#363
9O4 Mini0.39#185
10Claude Sonnet 4.5 (Thinking)0.34#148 (Claude Sonnet 4.5)
11Claude Sonnet 4.5 (Non-reasoning)0.3#148 (Claude Sonnet 4.5)
12Qwen 3.5 122B A10B0.27#184
13Qwen 2.5 VL 72B Instruct0.23#383
14Qwen 3 VL 235B A22B Instruct0.23#280
15GPT-4o Mini0.23#598

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

Interactive version: theaggregate.ai/benchmark?slug=photonic-pcfbench-structure-counting · How It Works · Data refreshed daily, snapshot 2026-11-05.