ResearchBenchmarkstool-missing on CMA (test)tool-missing on CMA (test)Follow0.976Kappa (κ)SPEAR0.61720.710350.80350.89665May 25, 2026Evaluation resultsMethodMethodLinksKappa (κ)SPEARN (best-of-N)=3, 5, Ag...N (best-of-N)=3, 5, Agent Model=GPT-5.42026.050.976TextGradN (best-of-N)=1, 3, Ag...N (best-of-N)=1, 3, Agent Model=GPT-4o2026.050.694GEPAN (best-of-N)=1, 3, Ag...N (best-of-N)=1, 3, Agent Model=GPT-5.42026.050.631