{"type": "article", "title": "Musk Says Grok 4.5 Enters Private Beta at SpaceX, Tesla", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/musk-says-grok-4-5-enters-private-beta-at-spacex-tesla", "original_source": "https://letsdatascience.com/news/musk-says-grok-45-enters-private-beta-at-spacex-tesla-1840769e", "published": "2026-06-29T07:14:59+00:00", "accessed": "2026-06-29", "id": "musk-says-grok-4-5-enters-private-beta-at-spacex-tesla"}