NVIDIA · Text Generation
NVIDIA Nemotron 3 Ultra
Open 550B-parameter MoE (55B active) for long-running agents — hybrid Mamba-Transformer layers, LatentMoE expert routing, multi-token prediction, NVFP4 quantization. ~5.9× throughput of GLM-5.1 on 8K/64K NVFP4 on GB200, lowers task-completion cost ~30%. Weights+data+recipes under Linux Foundation license.
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