A font where every token is exactly the same width

Font where each token is equal-width

A font where every token is exactly the same width

Developer &. and Astra built a font that gives every tokenizer token equal width, so you can see text the way a language model actually reads it. An early prototype drew huge attention, and a web tool now lets anyone combine a base font with a tokenizer of their choice. Several tokenizers are over 99% accurate, though GLM-5 and LLaMa 3 remain unreliable. The font uses OpenType GSUB and cmap tricks, since OpenType caps ligatures at 65,536.

OpenType has a 65,536 ligature limit and tokenizers are fucked up so this had to be implemented using GSUB and cmap.
  1. gchamonlive

    Don't you have anywhere else you can share it other than twitter?

    Inb4 I'm not going to use life support systems like xcancel, xdying is long overdue

  2. happytoexplain

    Ha, I like that, but to a layman it looks like the author is trying to say "it can't count the R's in strawberry because the letters are overlapping", which is funny.

  3. dahart

    Cute idea, but is this fixed width words, and not fixed width tokens? Isn’t an ‘ing’ ending normal a separate token from the root? Isn’t ‘strawberry’ two tokens?

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2026-09-27