Retrofitted LLM can count the letter ‘i’s in ‘artificial intelligence’

T1Covered by 1 source · first reported by Nature / Science / Nature Biotechnology at 07 Oct, 00:00 UTC

Nature, Published online: 07 October 2026; doi:10.1038/d41586-026-03059-2 Most LLMs cannot reliably evaluate text on the level of individual letters. A technique called byteification retrofits existing models to enable it.

ai

Sources

• T1Retrofitted LLM can count the letter ‘i’s in ‘artificial intelligence’Nature / Science / Nature Biotechnology07 Oct, 00:00