Apple:

Visual productivity apps receive a new generation of intelligence features for subscribers, including an intelligent assistant, built on Apple models and OpenAI, directly within Keynote, Pages, and Numbers. The assistant understands document context to help users accomplish more without leaving their work. In Keynote, the intelligent assistant helps with designing, animating, and refining slides. In Pages, it drafts, restructures, and fine-tunes written content. In Numbers, it calculates, visualizes, and organizes data; recommends suitable chart types with a one-tap preview; and builds custom tables using world knowledge. New MCP support, built on this platform, enables external AI agents and tools to read content, perform edits, and execute automated actions directly in Keynote, Pages, and Numbers.

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Keynote introduces support for Keynote Interchange Format (.keyx), an open JSON-based bundle file format designed to be readable and accessible to external tools, developer workflows, and AI agents.