Prompt Interference in LLM Post-Training: Why Pass@k Optimization Can Degrade Pass@1

arXiv:2602.21189 · cs.LG, cs.AI · Submitted 2026-02-24 · Read on arXiv

cs.LG, cs.AI

Submitted: 2026-02-24

Updated: 2026-10-13

Terminology

• Verifier — 2× in this paper · explained in 2 episodes
• Fine-Tuning — 1× in this paper · explained in 5 episodes

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