NVIDIA Nemotron 3.5 Super VL 120B-A12B — MLX 4bit (text)
Text conversion of nvidia/NVIDIA-Nemotron-3.5-Super-VL-120B-A12B-BF16.
- Quantization: 4-bit affine, group size 64; embeddings 8-bit/group-64. Output head, routers and latent projections retain checkpoint precision.
- Artifact size: 69.541 GB. Recommend 128 GB+ unified memory (measured peak 72.7 GB at 1K context on M3 Ultra; 96 GB Macs may need a raised GPU wired-memory limit and are not yet verified). Allow headroom beyond the weights for prefill, caches, macOS and applications.
- Text only: the vision tower, image projector and unused MTP head are omitted.
- Declared context limit: 1,048,576 tokens; this does not promise that the full window fits the recommended memory.
Requirements
Requires Rapid-MLX 0.16.2 or newer. The config retains
nemotron_h and opts into Rapid's reviewed precision adapter. Stock loaders
do not apply that adapter; only Rapid-MLX is validated for this conversion.
rapid-mlx serve rapid-mlx/NVIDIA-Nemotron-3.5-Super-VL-120B-A12B-MLX-4bit
Reasoning and XML tool calling use the original tokenizer/chat template. MTP speculative decoding and image input are not enabled.
License
Original model by NVIDIA under OpenMDW 1.1. This conversion inherits the original model's license terms.