ResearchBenchmarksModular Arithmetic (Simple) on Formal-language benchmark lengths 41-500 (test)Follow100AccuracyRNN21.16841.63462.182.566May 16, 2026Evaluation ResultsMethodMethodLinksAccuracyRNN2026.05100SRNNArchitecture=Stack-RNNArchitecture=Stack-RNN2026.05100TRNNArchitecture=Tape-RNNArchitecture=Tape-RNN2026.05100LSTM2026.05100PR-LSTM2026.0599.7TransformerArchitecture=encoder-onlyArchitecture=encoder-only2026.0524.2