Z.ai GLM-5.2 beats GPT-5.5 on coding benchmarks

Chinese AI startup Z.ai released GLM-5.2, a 753-billion parameter open-weights LLM. The model beats GPT-5.5 on multiple long-horizon coding benchmarks at 1/6th the cost. It offers a 1-million-token context window and enterprise subscriptions starting at $12.60 per month.