# torch==2.1.1 + CUDA 11.8 — Software interface version compatibility

For torch==2.1.1 + CUDA 11.8, product is PyTorch; software version is 2.1.1; dependency version is 11.8; companion package versions is torchvision==0.16.1 torchaudio==2.1.1, recorded from its source on 2026-08-29; source re-checked 2026-09-08.

- **Product:** PyTorch _(our reading, not quoted from the source)_
- **Version pairing:** torch==2.1.1 + CUDA 11.8 _(our reading, not quoted from the source)_
- **Software version:** 2.1.1 _(verified: appears in the quote below)_
- **Dependency version:** 11.8 _(verified: appears in the quote below)_
- **Companion package versions:** torchvision==0.16.1 torchaudio==2.1.1 _(verified: appears in the quote below)_

## What the source says

> # CUDA 11.8 pip install torch==2.1.1 torchvision==0.16.1 torchaudio==2.1.1 --index-url https://download.pytorch.org/whl/cu118

## Source

- https://pytorch.org/get-started/previous-versions/

Last verified: 2026-09-08. Review by: 2026-11-07.
Part of [Software interface version compatibility](https://referencesource.org/software-interface-version-compatibility/).