Real-time robot showdown: GPT-6 Astra vs Opus 5.5 vs Grok 4.7 vs MolmoAct2

DJiafei · x · 2026-09-28

DJiafei posted a real-time, zero-shot, unedited comparison of GPT-6 Astra, Opus 5.5, Grok 4.7 and MolmoAct2 controlling robot arms. Notably, MolmoAct2 moved its right arm away to clear space while placing candy with the left. Takeaway: LLM-based robot control is progressing fast, but low-level control remains the hard part per Moravec's paradox.

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