{"type": "article", "title": "StepFun teases Step 5 Preview, a 600B/27B MoE, open weights coming Oct 15", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/stepfun-teases-step-5-preview-a-600b-27b-moe-open-weights-coming-oct-15", "original_source": "https://twitter.com/StepFun_ai/status/2101510462685003786", "published": "2026-09-22T05:06:48+00:00", "accessed": "2026-09-22", "id": "stepfun-teases-step-5-preview-a-600b-27b-moe-open-weights-coming-oct-15"}