Zai Org Unveils Ox Alpha and GLM 5.3 Flash
Z.ai and Zai Org posts confirm upcoming public release of Ox Alpha GLM weights and GLM 5.3 Flash.
Zephyr posted that GLM is dropping soon and linked a Techmeme item. The post notes Z.ai confirmed Ox Alpha as the next GLM series iteration and stated plans to release the weights publicly. A separate retweet from Ying Sheng highlights Radixark congratulating Zai_org on unveiling Ox Alpha alongside the launch of GLM 5.3 Flash. The retweeted message adds that work is underway on an NVFP4 checkpoint for the model. These posts establish the announcements and planned releases from the organizations named in the visible statements.
Z․ai confirms Ox Alpha is a new iteration of its GLM series and says it will release the weights for it tonight; Ox Alpha topped OpenRouter's leaderboard (@luzdingyu / Bloomberg) (Visit Techmeme dot com for the link and full context!)
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3 postsZE RA 
RadixArk@radixarkCongrats @Zai_org on unveiling Ox Alpha and launching GLM 5.3 Flash! We're working on an NVFP4 checkpoint for it. It'll be around 200GB and should add a promising speedup for deployment on @NVIDIAAI Blackwell🚀
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YJ Yuchen Jin@Yuchenj_UWGLM-5.3 open weights in 22 hours!!! I'm excited.
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