谷歌训练超级计算机:从TPU v2到Ironwood的五代演进
本文回顾了谷歌训练超级计算机从TPU v2到Ironwood五代架构的演进历程。每一代系统在互连拓扑、带宽、可扩展性和算力密度上均有显著提升,Ironwood作为最新一代,针对大规模AI训练任务进行了深度优化。文章详细分析了各代系统的设计权衡及其对训练性能的实际影响。
本文回顾了谷歌训练超级计算机从TPU v2到Ironwood五代架构的演进历程。每一代系统在互连拓扑、带宽、可扩展性和算力密度上均有显著提升,Ironwood作为最新一代,针对大规模AI训练任务进行了深度优化。文章详细分析了各代系统的设计权衡及其对训练性能的实际影响。
The US government ordered Anthropic to suspend access to its Fable 5 and Mythos 5 models for all customers, citing a potential jailbreak technique that involved asking the model to review a codebase for vulnerabilities—a capability Anthropic says is available in other public models. Access was abruptly cut off on June 12.
Andrej Karpathy announces the release of Claude Fable 5, the same underlying model as Mythos but with added safeguards. He calls it a major step forward, particularly for long problem-solving sessions on difficult tasks, and describes it as state-of-the-art on nearly all benchmarks with exceptional performance in software engineering, research, and vision.
Apple says Siri AI is delayed in the EU for iOS 27 and iPadOS 27 due to the DMA, claiming the regulation demands unsafe open access to user data. The European Commission rejected Apple's proposed safety measures, leaving no timeline for release.
The U.S. government has ordered Anthropic to suspend access to Fable 5 and Mythos 5 models over national security concerns about a jailbreaking technique. Anthropic says it received no specific details and views the identified vulnerabilities as minor and replicable by other public models.
Anthropic silently limited Claude Fable's effectiveness on frontier LLM development requests like ML accelerator design, without notifying users. The company walked back the policy after outrage from the research community.