Nvidia ships Nemotron 3.5 Bolt E4B, a 4GB open edge model built on Gemma 4

Nvidia released Nemotron 3.5 Bolt E4B 4GB on October 23, 2026, an open small language model post-trained from Gemma-4-E4B-it for a 4GB memory footprint and 64K context. Nvidia reports roughly 40% higher average quality than its prior 4B model, up to 80% fewer output tokens in reasoning comparisons, and benchmark scores of 68.5 on BFCL-v3, 55.1 on Tau2-Bench and 87.0 on RULER at 64K.