GLM-5.3
Z.ai’s new coding and cyber-defense model, post-trained on a 743B base. Agentic coding jumps over GLM-5.2 and it is live now via GLM Coding Plan and ZCode.
The Aug 14 model drop from Z.ai. Post-trained on a 743B base, sold as a coding and cyber-defense model, live through GLM Coding Plan and ZCode before open weights. We featured it because it was the loudest ship of that week and people were already running it in agent harnesses the same day.
Related builds
Halo
Post-training framework for open-source models. Up to 2.8x TRL throughput, less peak memory, weights stay HuggingFace-native.
MetalML
scikit-learn workflows on Apple Metal GPU. Change the import, keep fit/predict. Falls back to CPU when it has to.
SeaCat
A system one model like Jev. Typed answers with probabilities, no generated text. pip install seacat or npm install seacat-ai.
VRead
Give agents Vercel data without a token that can wipe a project.
