# Ising Calibration 1.5 31B NVFP4

Ising Calibration 1.5 31B NVFP4 is a model from NVIDIA with open weights, first recorded on 11 Sep 2026; its release date is not established.

- Developer: NVIDIA
- Id: nvidia/Ising-Calibration-1.5-31B-NVFP4
- Sighting: 2026-09-11T22:01:53.380Z
  - [evidence link](https://huggingface.co/nvidia/Ising-Calibration-1.5-31B-NVFP4)
- Status: Released
- Weights version: 2026-07-23
  - [evidence link](https://huggingface.co/api/models/nvidia/Ising-Calibration-1.5-31B-NVFP4/paths-info/e0032103be2f10080a728187aea6aa7259552f27)
- Canonical: https://alexgetman.com/models/nvidia/ising-calibration-1-5-31b-nvfp4/

## Questions

### Are the weights of Ising Calibration 1.5 31B NVFP4 publicly available?

Yes. NVIDIA publishes the weights.

### When was Ising Calibration 1.5 31B NVFP4 released?

Its release date is not established. Signal Forge first recorded it on 11 Sep 2026.

## Evidence links

- [hf-author-artifacts:nvidia](https://huggingface.co/api/models/nvidia/Ising-Calibration-1.5-31B-NVFP4/paths-info/e0032103be2f10080a728187aea6aa7259552f27)
- [huggingface:nvidia](https://huggingface.co/nvidia/Ising-Calibration-1.5-31B-NVFP4)

## Signals