{"type": "article", "title": "Anthropic's Sonnet 5: A Frontier Model Under the Microscope", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/anthropic-s-sonnet-5-a-frontier-model-under-the-microscope", "original_source": "https://www.machinebrief.com/news/anthropics-sonnet-5-a-frontier-model-under-the-microscope-zelg", "published": "2026-07-12T22:22:11+00:00", "accessed": "2026-07-13", "id": "anthropic-s-sonnet-5-a-frontier-model-under-the-microscope"}