Skip to main content
Back to catalog

植物百科通

A Chinese “encyclopedia”-style boilerplate fragment. An o200k glitch token that still works in the GPT-5 era, without the typical spam-pollution profile — its cause is unknown.

Raw token

"植物百科通"

Observed behaviors

  • 01In xcloche's tests, GPT-5, GPT-4o and o3 all broke down — incoherent answers, failed repetition, derailing into unrelated content like “meltdown”/“micro:bit”.note.comDemo
  • 02Independently verified by Haruhiko Okumura: even 「百科通」 alone triggers the anomaly; unlike typical spam-polluted tokens, its cause is unknown.okumuralab.org
Observed or documented on
GPT (OpenAI)
Behavior types
Unspeakable
Tokenizer
o200k_base
Discovered by
xcloche

References