glm

GLM-5.2 Ships Its Weights: Open Models Have Made the Frontier a Quarterly Refresh

Zhipu released GLM-5.2 weights under MIT, with a 1M context, a long-horizon focus, and a tunable thinking budget. Its own benchmarks place it within a point or two of the closed frontier on long-horizon coding. The real signal is not another leaderboard run but the open-weight capability-cost curve dropping another notch. Treat the vendor numbers with a discount, and test the 1M usability and long-horizon reliability on your own tasks.