Kirill gave Claude Opus 5.5 and GPT-6 Astra the same brief: a 15-second motion-design showreel, go all out. He thinks looking at Astra hurts after Opus. The pair is the point.
Hasamaru Studio drove Blender with GPT-6 Astra and built the same street at three detail levels, to see how much of a reference survives into an AI-video previz.
Alexey Fateev ran one Mario Kart–style prompt four ways: DeepSeek and GPT-6 Astra alone, then each with the other as a subagent. Four builds, each from scratch.