# CUDA 9.1 (9.1.85) + NVIDIA driver — Software interface version compatibility

For CUDA 9.1 (9.1.85) + NVIDIA driver, product is CUDA; software version is 9.1 (9.1.85); minimum nvidia driver (linux) is >= 390.46; minimum nvidia driver (windows) is >= 391.29, recorded from its source on 2026-08-29; source re-checked 2026-10-28.

- **Product:** CUDA _(our reading, not quoted from the source)_
- **Version pairing:** CUDA 9.1 (9.1.85) + NVIDIA driver _(our reading, not quoted from the source)_
- **Software version:** 9.1 (9.1.85) _(verified: appears in the quote below)_
- **Minimum NVIDIA driver (Linux):** >= 390.46 _(verified: appears in the quote below)_
- **Minimum NVIDIA driver (Windows):** >= 391.29 _(verified: appears in the quote below)_

## What the source says

> CUDA 9.1 (9.1.85) | >= 390.46 | >= 391.29

## Source

- https://docs.nvidia.com/cuda/cuda-toolkit-release-notes/index.html

Last verified: 2026-10-28. Review by: 2026-12-27.
Part of [Software interface version compatibility](https://referencesource.org/software-interface-version-compatibility/).