Nemotron 3.5 Bolt E4B
NVIDIA released Nemotron 3.5 Bolt E4B on 2026-10-23, with 4GB GGUF and BF16 checkpoints and up to 64K input and output tokens. NVIDIA says it builds on Gemma 4 E4B with additional post-training; the archive has no matching E4B base entity, so no lineage edge is inferred.