Side-by-side comparison · open source
Keras vs PyTorch Lightning
What we have checked about each, line by line. Every value shows where it came from and when we last confirmed it.
Open Source
Keras
Deep Learning for humans
Open Source
PyTorch Lightning
Pretrain, finetune ANY AI model of ANY size on 1 or 10,000+ GPUs with zero code changes.
Checked facts
Line by line
| Measure | Keras | PyTorch Lightning |
|---|---|---|
| Latest version | 3.12.4 (for 29 July 2026) | 2.6.6 (for 10 Sept 2026) |
| GitHub stars | 64,343 | 31,362 |
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