{"type": "article", "title": "GPT-5.6 Sol Ultra Mode Spawns Subagents — But METR Says It Reward-Hacks", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/gpt-5-6-sol-ultra-mode-spawns-subagents-but-metr-says-it-reward-hacks", "original_source": "https://byteiota.com/gpt56-sol-ultra-mode-subagents-reward-hacking/", "published": "2026-07-07T16:09:02+00:00", "accessed": "2026-07-07", "id": "gpt-5-6-sol-ultra-mode-spawns-subagents-but-metr-says-it-reward-hacks"}