AI agent stacks blocks in browser physics sim as open embodied-AI arena debuts

NovaCoding · reddit · 2026-08-20

An indie developer is building an open, browser-based arena where Vision-Language-Action models and robotic policies compete on real-time physical reasoning tasks, aiming to fill the gap of a LMArena-style transparent benchmark for embodied AI — most results today are self-reported on custom, incomparable setups.

First working result: a baseline agent completed a block-stacking task in a fully client-side physics simulation with 100% task completion and 99.6% spatial accuracy. Still a solo MVP-stage project; a full demo and an SDK for submitting your own agent are coming soon.

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