{"type": "article", "title": "Opus 5.5 vs Grok 4.7 vs Muse Spark 1.3: Real Cost per Task", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/opus-5-5-vs-grok-4-7-vs-muse-spark-1-3-real-cost-per-task", "original_source": "https://www.digitalapplied.com/blog/opus-5-5-vs-grok-4-7-vs-muse-spark-1-3-cost-per-task", "published": "2026-09-22T00:00:00+00:00", "accessed": "2026-09-22", "id": "opus-5-5-vs-grok-4-7-vs-muse-spark-1-3-real-cost-per-task"}