Has anyone heard of TOON format? Looking for Julia implementation

Hi everyone,

I recently came across TOON (Token-Oriented Object Notation), which is described as a data format designed to be more LLM-friendly than JSON. The format aims to reduce token usage while maintaining readability and type safety.

Some interesting features:

  • Compact syntax that reduces LLM token consumption
  • Built-in type annotations
  • Object-oriented structure
  • There’s an interactive playground to explore how it compares to JSON in terms of tokenization

There’s already a Python implementation available, which got me thinking about Julia.

Has anyone:

  1. Heard of or worked with TOON format?
  2. Started (or would be interested in) a Julia implementation?

Given Julia’s strengths in parsing and the growing interest in LLM applications, it seems like TOON could be a useful addition to the ecosystem. I’m curious if there’s any existing work in this direction or if others think this would be a valuable package to develop.

Would love to hear your thoughts!

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Just saw it in a forum unrelated to Julia yesterday. Has it been going viral in the past few days?

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