@article{multilevelandsequentialmontecarlofortrai,
  title = {Multilevel and Sequential Monte Carlo for Training-Free Diffusion Guidance},
  author = {Aidan Gleich and Scott C. Schmidler},
  year = {2026},
  eprint = {2601.21104},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2601.21104},
}