Moonshot has released the model weights and technical report for Kimi K3, a 2.8T Mixture-of-Experts model featuring native visual understanding and a 1-million-token context window. The release includes high-performance attention kernels, a MoE communication library, and infrastructure for running agent environments at scale.
Anthropic stated it has not advocated banning open-weight models, arguing that less capable releases are a public good. Instead, the company supports tighter chip controls, action against industrial-scale distillation, and mandatory safety testing for sufficiently capable open and closed models.
Microsoft launched MAI-Cyber-1-Flash, a specialized model for finding difficult vulnerabilities in large codebases, which powers the new MDASH platform for identifying and remediating software security flaws.