A frozen study of 12,160 trials on gpt-5.4-2026-03-05 found a reproducible Arabic–Hebrew hybrid Unicode artifact under two system prompts differing by exactly one Hebrew code point. Every primary user message was the Arabic word شَرْط . Across 10,240 primary trials: Dotted condition: 4,830/5,120 exact artifacts — 94.34% Undotted condition: 2,423/5,120 exact artifacts — 47.32% Combined: 7,253/10,240 exact artifacts — 70.83% All 7,253 exact artifacts were condition-congruent. The one-code-point difference produced a 47.01 percentage-point effect, with Fisher’s exact p = 1.58 × 10⁻⁶⁶⁴. Across 1,920 controls, generic, no-system, lexical, no-condition, no-full-Hebrew, and direct-copy conditions produced 0 exact artifacts. The paper makes no claim about consciousness, intention, mechanism, training provenance, or shared architecture. It documents a reproducible, prompt-conditioned cross-script output regime in GPT-5.4. Frozen records, Unicode-level classification, event hashes, verification code, runner, and paper are public. submitted by /u/rayanpal_
Originally posted by u/rayanpal_ on r/ArtificialInteligence