Open models have real benefits. Do they outweigh the risks?

Open models have real benefits. Do they outweigh the risks? Late last month, Anthropic released a report arguing that the model GLM-5.3 The report's core concern is that the powerful new model, released in August by the Chinese company Z.ai, is freely available for anyone to download and modify. Anthropic's assertion is only the latest move in a long-running debate about whether frontier AI models should be made open, like GLM-5.3, or should stay locked behind the doors of the frontier labs. These days, much of the debate about how to handle open models is playing out in public--and there's a lot of money resting on its outcome.