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␣davidjl

Truncated handle of Redditor davidjl123, another r/counting counter. Unusually, it is anomalous under both r50k and the newer cl100k tokenizer.

Raw token

" davidjl"

␣marks a real space; the symbol itself is not part of the token, and copying preserves it.

Observed behaviors

  • 01GPT-4 treats it as though it doesn't exist when asked to repeat it — one of only three Category-A “unspeakable” tokens found in cl100k tokens 98,000–99,999.LessWrongDemo
  • 02GPT-3.5 gets “creative” about what it might mean instead of repeating it.LessWrong
Observed or documented on
GPT-2GPT-3GPT-3.5 / GPT-4
Behavior types
Unspeakable
Tokenizer
r50k_base / cl100k_base
Discovered by
Rumbelow & Watkins (r50k); Adam Yedidia (cl100k)

References

Related tokens

␣SolidGoldMagikarp␣TheNitromeFan␣RandomRedditorWithNo␣Adinida␣Smartstocks