{"type": "article", "title": "GPT-5.6 Quietly Broke Our Prompt Cache. One Message Boundary Fixed It.", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/gpt-5-6-quietly-broke-our-prompt-cache-one-message-boundary-fixed-it", "original_source": "https://pub.towardsai.net/gpt-5-6-quietly-broke-our-prompt-cache-one-message-boundary-fixed-it-f71e08aa4c18?source=rss----98111c9905da---4", "published": "2026-09-24T12:31:01+00:00", "accessed": "2026-09-24", "id": "gpt-5-6-quietly-broke-our-prompt-cache-one-message-boundary-fixed-it"}