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Long-context reasoning on LongBench 256 tokens v2

100AccuracyMamba
79.284.69095.4Feb 26, 2026

Evaluation results

MethodLinks
MambaModel Size=130M2026.0210021.9996.8610010083.77
MambaModel Size=1.4B2026.0210024.2288.9510010082.63
MambaModel Size=2.8B2026.0210026.5595.6310010084.44
Steered MambaModel Size=130M2026.0210036.6199.7310010087.27
Steered MambaModel Size=1.4B2026.0210038.339110010085.87
Steered MambaModel Size=2.8B2026.0210040.4295.0210010087.09
Stable-MambaModel Size=130M2026.0210038.3598.9210010087.45
Stable-MambaModel Size=1.4B2026.0210042.1491.1710010086.66
Stable-MambaModel Size=2.8B2026.0210045.3296.1110010088.29
Hyena2026.0210014.8589.7810010080.93
Mamba-22026.0210016.7192.8210010081.91
MiniPLM-MambaModel Size=130M2026.0210013.5587.4410010080.2
GPT-22026.029512.1881.68959575.37
DenseMamba2026.028016.6382.418010071.81