Z AI's GLM-5.2 tops open-weights AI models with score of 51, surpassing MiniMax-M3 and DeepSeek V4 Pro; matches proprietary GPT-5.5 on agentic tasks despite higher token usage at 43k per task.

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

Z ai’s GLM-5.2 is the new leading open weights model on the Artificial Analysis Intelligence Index scoring 51 and it sits on the Pareto frontier of Intelligence vs Cost per Task GLM-5.2 is the same size as GLM-5.1 (744B total / 40B active parameters) but scores 11 points higher on the Intelligence Index v4.1, placing ahead of MiniMax-M3 (44) and DeepSeek V4 Pro (max, 44). On the first-party API it is priced in line with GLM-5.1 at $1.4/$4.4/$0.26 per 1M input/output/cache hit tokens Key results:...