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xAI Launches Grok Skills: Teach Grok Once, It Remembers Across Every Conversation (May 18, 2026)
xAI announced Grok Skills on May 18, 2026: teach Grok a skill once and it reuses it across every future conversation, plus production-ready Word, PowerPoint, Excel, and PDF generation. The real strategic signal is cross-conversation persistence — xAI contesting the agentic-productivity layer held by Anthropic Claude Skills, OpenAI, and Microsoft Copilot.