#GLM

GLM-5.2: Zhipu AI's 1M-Context Open Frontier Model — Long-Horizon Coding, IndexShare Architecture, and the Open-Source Challenge to the Closed-Weight Elite

Zhipu AI releases GLM-5.2 on June 16, 2026 — a 744B MoE model with solid 1M-token context, MIT license, and long-horizon coding capability that trails Claude Opus 4.8 by only 1% on FrontierSWE. Analyzes the IndexShare architecture, speculative decoding improvements, agentic RL training, and positions GLM-5.2 against the closed-weight frontier (Fable 5, Opus 4.8, GPT-5.5, Qwen3.7 Max).