Microsoft's Anthropic relationship is not just a supply contract — it is a public positioning choice. The Copilot Cowork launch priced Claude at enterprise scale and telegraphed a preference hierarchy: OpenAI first, Anthropic as the capable alternative, internal models as the long-run escape. A Chinese model substitution skips that hierarchy entirely and introduces regulatory scrutiny of Chinese AI supply chains — a variable Microsoft's enterprise customers will surface in their own vendor reviews.
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