Reflection Beam Preview 2026-10-05 - GPQA Diamond: leaderboard

Oct5 prerelease evaluation, publisher says final red-teaming ongoing and weights forthcoming. Beam identity is date-qualified and never merged with final Oct16. Comparator exact printed model labels retained; effort/precision unreported. Public split and context-management qualifiers retained. NR cells explicitly pinned missing; a populated missing cell requires review. Metric: Score (%). Higher is better. Source: https://reflection.ai/blog/introducing-beam

Metric: Score (%). Source: reflection.ai. Saturation forecast: Estimated already saturated. 8 models tracked.

Top models

#ModelScoreOverall rank
1Kimi K393.5#29
2Qwen 3.8 Max92.6#31
3GLM-5.391.7#40
4GLM-5.291.2#71
5DeepSeek V4.1 Flash90.9#35
6Inkling87.2#123
7Nemotron 3 Ultra87#240

No result here: #3 Claude Opus 5.5, #5 GPT-6 Astra, #7 Gemini 4 Argon.

Interactive version: theaggregate.ai/benchmark?slug=reflection-beam-preview-2026-10-05-gpqa-diamond · How It Works · Data refreshed daily, snapshot 2026-10-17.