黄仁勋倡议的开源联名信，Anthropic 为何不愿签名?

TL;DR - An open letter supporting open-weight AI models sparked debate after Anthropic declined to sign. The dispute highlights differing views on whether capability testing can justify permanently releasing model weights beyond developers’ control.

• Open weights enable local deployment, quantization, fine-tuning, distillation, and reproducible safety research.
• Signatories support selective, risk-based releases—not mandatory publication of every frontier model.
• Anthropic’s apparent concern is that external operators can remove safeguards or modify models, while released weights cannot be recalled.
• Open weights, open protocols such as MCP, and open-source software expose different technical layers and carry different risks.