glm

Seven weeks of open-weight releases put models within a benchmark generation of the frontier on a $5,499 Mac Studio or a 12 GB gaming GPU, but the measured numbers show batched cloud hosts, not desktops, now set the price of mid-market tokens.

Z.ai published the 753-billion-parameter GLM-5.3 on Hugging Face two weeks after its API launch, but swapped GLM-5.2's MIT license for one that makes model hosts above $10 billion in revenue pass a Z.ai security review.

Grok 4.6, Gemini 3.7 Flash, DeepSeek V4-Pro-0813, and GLM-5.3 shipped within three days of each other and not one is a new base model; the frontier is advancing by post-training, harness, and serving efficiency while every next-generation base stays in the oven.

On June 16, GLM-5.2 became the leading open-weight model on the Artificial Analysis Intelligence Index v4.1 at 51, just 3.4 months behind an equally capable closed model, down from a 9.8-month gap in December 2024.