@article{istheresecretsauceinlargelanguagemodelde,
  title = {Is there "Secret Sauce'' in Large Language Model Development?},
  author = {Matthias Mertens and Natalia Fischl-Lanzoni and Neil Thompson},
  year = {2026},
  eprint = {2602.07238},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2602.07238},
}