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eternisai/
box_glm_4.5_nvfp4

Name: box_glm_4.5_nvfp4
Availability: InStock

safetensors

glm4_moe

Rombo-Org/Optimized_Reasoning

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GLM-4.5-Air-nvfp4

Format: NVFP4 — weights & activations quantized to FP4 with dual scaling.
Base model: zai-org/GLM-4.5-Air
How it was made: One-shot calibration with LLM Compressor (NVFP4 recipe), long-seq calibration with Rombo-Org/Optimized_Reasoning.

Notes: Keep lm_head in high precision; calibrate on long, domain-relevant sequences.

Check the original model card for information about this model.

Running the model with VLLM in Docker

sudo docker run --runtime nvidia --gpus all -p 8000:8000 --ipc=host -e VLLM_USE_FLASHINFER_MOE_FP4=1 vllm/vllm-openai:nightly --model Firworks/GLM-4.5-Air-nvfp4 --dtype auto --max-model-len 32768

This was tested on a B200 cloud instance.

If there are other models you're interested in seeing quantized to NVFP4 for use on the DGX Spark, or other modern Blackwell (or newer) cards let me know. I'm trying to make more NVFP4 models available to allow more people to try them out.

eternisai/box_glm_4.5_nvfp4

GLM-4.5-Air-nvfp4

Running the model with VLLM in Docker

eternisai/
box_glm_4.5_nvfp4