{"type": "article", "title": "Coverage, Not Difficulty, Sets How Much Synthetic Data an Activation Probe Needs", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/coverage-not-difficulty-sets-how-much-synthetic-data-an-activation-probe-needs", "original_source": "https://arxiv.org/abs/2610.10594", "published": "2026-10-09T04:00:00+00:00", "accessed": "2026-10-09", "id": "coverage-not-difficulty-sets-how-much-synthetic-data-an-activation-probe-needs"}