GLM-5.3 API goes live at GLM-5.2 prices, open weights still unannounced
Z.ai's GLM-5.3 now ships on the API at the same $1.40/$4.40 per-million-token rates as GLM-5.2, with stronger coding and long-horizon agent chops. Open weights remain unannounced, so devs build through the OpenAI-compatible endpoint for now.