Paper 5 · Question 54

A: The persona is followed on the early turns, so the system prompt is being applied. It is not a first-turn-only field.

B: 2,500 tokens is not a context-pressure problem. Attention drop is the wrong cause at that length.

C: As assistant responses accumulate in the conversation history, the proportion of text reflecting the system prompt's behavioral constraints decreases relative to the growing body of assistant-generated content. The model increasingly pattern-matches to its own prior outputs rather than the system prompt, compounding drift even at short token lengths. The system prompt is included in every API call (D is false as a standalone explanation), and model attention degradation (B) doesn't operate at 2,500 tokens.

D: The system prompt is sent on every API call. Turn 7 is not drifting because it was left out.