@article{whenlossesaligngradientbasedcompositelos,
  title = {When Losses Align: Gradient-Based Composite Loss Weighting for Efficient Pretraining},
  author = {Ivan Karpukhin and Andrey Savchenko},
  year = {2026},
  eprint = {2605.07756},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2605.07756},
}