---
license: mit
tags:
  - connectomics
  - electron-microscopy
  - 3d-segmentation
  - affinity-prediction
  - pytorch-connectomics
  - mednext
---

# pytc/vEM — volume EM models

Checkpoints for [PyTorch Connectomics](https://github.com/PytorchConnectomics/pytorch_connectomics),
one folder per dataset. Each folder has its own README with the training recipe, the
inference constraints that matter, and the measured results.

| Folder | Dataset | Task | Files |
|---|---|---|---|
| [`j0126/`](j0126) | j0126 zebra finch, 9 × 9 × 20 nm | 3-channel voxel affinity | `affinity_scratch_48x96x96.ckpt` (247 MB) · `.onnx` (247 MB, opset 17) |

```bash
hf download pytc/vEM j0126/affinity_scratch_48x96x96.ckpt --local-dir ckpt/
```

> Renamed from `pytc/j0126` on 2026-09-08 and reorganised into per-dataset folders. The old
> repo URL redirects, but a link that pinned `affinity_scratch_48x96x96.ckpt` at the repo
> root needs the `j0126/` prefix added.