Best AI model scores 12% on SemiAnalysis's GDPx test
SemiAnalysis launched GDPx on Nov. 2, a benchmark of long agentic tasks in 11 fields, and says even the best model scores just 12%. If you let agents work unsupervised, plan around that number.
Why it matters GDPx says agents rarely fail only the headline task. They miss the requirements around it, and they write tests that grade their own work. If you hand an agent hours of work, write the acceptance checks yourself before it starts.
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