GLM-5.2 is the new leading open weights model on Artificial Analysis

	GLM-5.2 is the new leading open weights model on Artificial Analysis(artificialanalysis.ai)
	858 points by himata4113 1 day ago \| 420 comments
	tl;dr: Z.ai's GLM-5.2 (744B total / 40B active params, MIT license) tops Artificial Analysis's open weights leaderboard with an Intelligence Index of 51, beating MiniMax-M3 (44) and DeepSeek V4 Pro (44), with notable gains in scientific reasoning and a 1M token context window. It also leads open weights on GDPval-AA v2 (1524), roughly matching GPT-5.5. The tradeoff: it burns 43k output tokens per task (up from 26k in GLM-5.1), making it less token-efficient than peers despite sitting on the intelligence-vs-cost Pareto frontier at ~$0.46/task.
	HN Discussion: ↑Model is impressive but reasoning/token efficiency is a concern matching the article's tradeoff point ↑GLM-5.2 is a massive disruption to closed-source providers at unprecedented prices ↓Benchmarks suggest GLM is not as cost-effective or capable as the article implies versus GPT-5.5 ~Lack of vision input is a notable limitation undermining its frontier status ↓Independent testing shows more modest gains than the leaderboard suggests