Moonshot AI released Kimi K3.1 Pro on October 23, its most capable 3T-class open-weight model to date. It is not a new base model: it is Kimi K3 put through substantially more reinforcement learning across hundreds of downstream domains. The architecture stays at 2.8 trillion total parameters with 104 billion active per token, a 1 million token context window, and text and image input.
Anthropic announced on October 22 that it is donating Agent Skills, the open standard that gives AI agents specialized knowledge and workflows, to the Agentic AI Foundation under the Linux Foundation. The donation covers the Agent Skills name and logo, the GitHub organization, and the agentskills.io domain. Anyone can keep using or contributing to the standard without joining the foundation, and engineers from Anthropic, Google, OpenAI, and other companies will maintain it as individuals, with David Soria Parra and Mahesh Murag as lead maintainers.
Anthropic made Claude Models on Google Cloud (Anthropic managed) generally available on October 22, putting the full Claude Platform inside Google Cloud. Teams authenticate with the Google Cloud IAM credentials they already manage, pay through one Google Cloud invoice, and draw usage against existing cloud commitments. US and Global endpoints are live, and the model shelf is current: Claude Fable 5.1, Opus 5.5, Sonnet 5.5, and Haiku 5.5, with new models promised on this route the day they launch.
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