A huge update just dropped in the AI world today.
TOON is a new data format built specifically for LLMs â and it might change how we send structured data to models forever.
Why?
Because TOON is:
â Lighter than JSON
â Faster for LLMs to read
â Uses 30â60% fewer tokens
â Cheaper for every API call
Instead of repeating {}, "", and field names, TOON compresses your data into a clean schema + CSV-style rows. Example:
JSON Input:
{
"products": [
{ "id": 1, "name": "T-Shirt", "price": 19.99 },
{ "id": 2, "name": "Cap", "price": 14.5 }
]
}
TOON Output:
products[2]{id,name,price}:
1,T-Shirt,19.99
2,Cap,14.5
This simple change saves tokens, reduces costs, and makes agents + RAG systems faster and more reliable.
If youâre building anything that talks to LLMs, TOON might be the new must-use format.
The AI world is moving fast⌠and today JSON got its first real challenger.
