TLDR Tech / Dev
GLM-5.2 vs Claude Opus
Tech Stackups tested open-weights GLM-5.2 against Claude Opus 4.8 on a one-shot “build a 3D WebGL platformer from scratch” task: Opus was faster and shipped a cleaner, more correct game, while GLM-5.2 was much cheaper but rougher and, being text-only, couldn't visually self-check its work. The takeaway: use GLM-5.2 when cost and openness matter for text/logic work, and Opus when correctness, polish, and visual judgment matter.
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