--- title: Microsoft, Nvidia, Meta and 22 others defended open... description: A political and commercial battle over open-weight AI models intensified after White House officials accused China's Moonshot AI of IP theft through... canonical: https://daily.dev/posts/microsoft-nvidia-meta-and-22-others-defended-open-weights-anthropic-and-openai-didn-t-sign--mdqu48ury twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Microsoft, Nvidia, Meta and 22 others defended open weights. Anthropic and OpenAI didn’t sign. | daily.dev og:description: A political and commercial battle over open-weight AI models intensified after White House officials accused China's Moonshot AI of IP theft through... og:url: https://daily.dev/posts/microsoft-nvidia-meta-and-22-others-defended-open-weights-anthropic-and-openai-didn-t-sign--mdqu48ury og:image: https://api.daily.dev/og/posts/MDQu48ury.png og:image:alt: Microsoft, Nvidia, Meta and 22 others defended open weights. Anthropic and OpenAI didn’t sign. og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Microsoft, Nvidia, Meta and 22 others defended open weights. Anthropic and OpenAI didn’t sign. **[The New Stack](https://daily.dev/sources/newstack)** · 7 min read · 0 upvotes · 0 comments ## Summary A political and commercial battle over open-weight AI models intensified after White House officials accused China's Moonshot AI of IP theft through distillation. Nearly 200 startups and 25 major organizations including Microsoft, Nvidia, and Meta signed a statement defending open weights and distillation as legitimate. Anthropic and OpenAI notably did not sign. The core tension is economic: Chinese open-weight models like Kimi K3 deliver comparable coding results to Claude Fable 5 at roughly one-third the cost, driving significant developer adoption. On OpenRouter, Chinese models have exceeded 30% of U.S. token usage weekly since February. The piece argues developers should download and self-host open-weight models rather than relying on hosted APIs that could be shut down by policy changes overnight. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Nvidia, Microsoft, Meta warn against ‘premature restrictions’ of open-weight models](https://daily.dev/posts/nvidia-microsoft-meta-warn-against-premature-restrictions-of-open-weight-models-vvh6qbbxz) · Hacker News · 0 upvotes · 0 comments - [US lawmaker asks five AI firms how they guard model weights from China](https://daily.dev/posts/us-lawmaker-asks-five-ai-firms-how-they-guard-model-weights-from-china-sn3hfzxft) · The Next Web · 0 upvotes · 0 comments --- Tags: [#llm](https://daily.dev/tags/llm), [#anthropic](https://daily.dev/tags/anthropic), [#ai-governance](https://daily.dev/tags/ai-governance) [View this post on daily.dev](https://daily.dev/posts/microsoft-nvidia-meta-and-22-others-defended-open-weights-anthropic-and-openai-didn-t-sign--mdqu48ury) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Microsoft, Nvidia, Meta and 22 others defended open weights. 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