GDN-2 variants substantially beat Mamba-2, GDP and KDA; 3B latent MoE release pending

teortaxesTex · x · 2026-09-26

Researcher ahatamiz1 (NVIDIA) reveals that larger variants of the new GDN-2 architecture have already been trained and substantially outperform competing approaches including Mamba-2, GDP, and KDA. A near-term release candidate is GDN-2-3B latent MoE, which follows the Nemotron-3 Nano architecture but replaces its Mamba-2 layers with GDN-2. A public release still requires several internal approvals, which the team is working to secure.

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