tl;dr: Zhipu has released GLM-5.2, its most capable open-source model to date, featuring a 1M context window and strong performance on long-horizon agent tasks and coding. The announcement explicitly frames the release as a response to recent restrictions on frontier models, positioning open-source AI as essential to global AGI development. It launches tonight for GLM Coding Plan users (Lite/Pro/Max), with API access coming next week.