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Language Modeling on Penn Treebank (PTB) word-level (val)

56.5PerplexityAWD-LSTM-MoS
50.34291.9085133.475175.0415Oct 22, 2018Dec 28, 2019Mar 4, 2021May 10, 2022Jul 16, 2023Sep 20, 2024Nov 27, 2025

Evaluation results

MethodLinks
AWD-LSTM-MoSParameters=22M2018.1056.5—
ON-LSTM - 3-layer (tied)Parameters=25M, tied=true2018.1058.29—
AWD-LSTM - 3-layer LSTM (tied)Parameters=24M, tied=true2018.1060—
4-layer skip connection LSTM (tied)Parameters=24M, tied=true2018.1060.9—
Variational RHN (tied)Parameters=23M, tied=true2018.1067.9—
Variational LSTM (tied) + augmented lossParameters=51M, tied=true2018.1071.1—
Pointer Sentinel-LSTMParameters=21M2018.1072.4—
LSTM (large)Parameters=66M2018.1082.2—
LSTMParams=3.6M2025.11165.5565
INNParams=5.5M2025.11207.2107
TransformerParams=5.7M2025.11210.45111