lightning
https://github.com/lightning-ai/lightning
Python
Deep learning framework to train, deploy, and ship AI products Lightning fast.
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- Issues
- LightningCLI: avoid jsonargparse v4 deprecation warnings and prepare for v5
- feat(loggers): add group_metrics option to TensorBoardLogger
- fix(strategies): report the world size as `num_replicas` for DDP and FSDP
- ci: pin runner images to ubuntu-24.04, macos-26, windows-2025
- docs: highlight logger API examples with emphasize-lines
- fix: make standalone returns failure when its test runner fails
- feat(fabric): add return-type overloads for Fabric.setup, setup_optimizers and setup_dataloaders
- fix: set sampler epoch before creating resumed iterator
- Fix trainer.test() logging incorrect epoch when restoring from checkpoint
- fix(profiler): gracefully handle stopping unstarted actions in Advanc…
- Docs
- Python not yet supported