GLM-5.2 is the step change for open agents
Lambert has been the most reliable tracker of when open models cross real capability thresholds, so this is worth taking seriously rather than dismissing as another open-weight release. If GLM-5.2 closes the agent-reliability gap with closed frontier models, that changes the build-vs-buy calculus for anyone running agents on a budget. Worth testing directly on your own agent harness before trusting the writeup alone.