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

Summary

Anthropic released a report arguing that GLM-5.3, a model Z.ai released in August, poses a major cyberattack risk because anyone can freely download and modify it. The piece frames this as the latest move in a long-running debate over whether frontier AI models should be open-weight or kept behind closed frontier-lab APIs. It weighs the benefits of open models, such as local use and research access, against misuse concerns.

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