GPT-5.6 Leads in Knowledge Work Benchmark

ArtificialAnlys · x · 2026-07-11

AA-Briefcase is a new agentic knowledge work benchmark designed to test models' real-world capabilities in complex projects, with tasks built by industry experts. Its scoring combines binary Rubric Checks, analysis quality, and pairwise comparisons of presentation effectiveness. According to the post, GPT-5.6 Sol (max) achieved the highest Presentation Elo on this benchmark, meaning it delivers the best presentation quality across different file types like PowerPoint and Excel. Compared to its predecessor GPT-5.5 (xhigh), its Presentation Elo increased by roughly 500 points, which translates to an estimated 95% win rate in head-to-head visual comparisons.

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