←Back to NewsAI News/BenchmarkspaperBenchmarksLlmsStudentBench Shows AI Tutors Match Human GRE Gains at 918x Lower CostA new benchmark study finds top AI tutors match expert human GRE tutors on learning gains, at up to 918 times lower cost.SourceAlphaSignalPublishedSep 23, 2026, 5:57 PMAuthorAlphaSignal NewsroomRead1 min readA new benchmark study finds top AI tutors match expert human GRE tutors on learning gains, at up to 918 times lower cost.Reporting is indexed from AlphaSignal. Rights remain with the original publisher and cited sources.Read original report ↗Next readsAlphaSignal · modelOrnith 1.5 Beats 35B Models on Reasoning With Just 9B ParametersArena.ai · newsLM Arena Merges 12 AI Leaderboards Into One Free DashboardAlphaSignal · paperPenn Researchers Show Jev Cuts AI Grading Costs by 325x