To cite package ‘rtiktoken’ in publications use:

Zimmermann-Kollenda D, Roger Zurawicki, Authors of the dependent Rust crates (2026). rtiktoken: A Byte-Pair-Encoding (BPE) Tokenizer for OpenAI's Large Language Models. R package version 0.11.0-1, https://github.com/davzim/rtiktoken.

Corresponding BibTeX entry:

  @Manual{,
    title = {rtiktoken: A Byte-Pair-Encoding (BPE) Tokenizer for
      OpenAI's Large Language Models},
    author = {David Zimmermann-Kollenda and {Roger Zurawicki} and
      {Authors of the dependent Rust crates}},
    year = {2026},
    note = {R package version 0.11.0-1},
    url = {https://github.com/davzim/rtiktoken},
  }