glm

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 of them 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**, ahead of every Google model and **3.4 months** behind the equally-capable closed model. The smallest gap on record is now **2.2 months** (DeepSeek V4 Pro). The peak was **9.8 months** in December 2024. The reasoning frontier the closed labs owned outright is now a quarter-year head start, priced in the open.