GLM 5.2: Zhipu’s 1M-Context Open-Source Model Explained
Update, June 21, 2026: The first independent benchmarks have landed since launch and now rank GLM 5.2 as the strongest open-weight coding model, and the open weights are available for self-hosting. Scores and analysis are below. GLM 5.2 arrived on June 13, 2026, and it lands with three headline numbers: a 753-billion-parameter Mixture-of-Experts design, a 1-million-token context window, and an MIT license that makes the weights free for anyone to download and run. Chinese AI lab Zhipu AI (operating as Z.ai) shipped it as a coding-first frontier model, and the timing was not subtle. It went public just two days after the US ordered Anthropic to cut foreign access to […]
