GLM-5.3 crushes stealth model Space Bunny Alpha on Newton's cradle physics test
rohanpaul_ai · x · 2026-09-24
AI/ML API tested GLM-5.3 against Space Bunny Alpha (a new stealth model on OpenRouter/OpenCode with 1M token context, native multimodal input) across five single-focus physics scenes. GLM-5.3 clearly won the Newton's cradle; water drop and tornado stumped both models. Space Bunny is free while GLM-5.3 costs $0.40. Key takeaway: visual output is constrained by dynamics — wrong collision timing or momentum transfer can't be compensated with more environmental detail.
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