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Satya Nadella / Microsoft
Microsoft CEO issuing the public warning; Microsoft is itself a major investor in both OpenAI and Anthropic, yet Nadella is advocating against enterprise dependency on any single one of these proprietary labs while Microsoft commercially benefits from offering the orchestration/gateway layer he recommends.
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Alex Karp (Palantir CEO)
Echoes Nadella's concerns, claiming enterprise clients are privately frustrated about AI vendors prioritizing token consumption over delivering real business value.
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Nvidia, Microsoft, Meta and roughly 25 other organizations
Co-signed a joint industry statement warning against 'premature restrictions' on open-weight AI models, framing open weights as important for US competitiveness and national security.
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Andreessen Horowitz (a16z) and IBM
Joined Nadella in pushing for open-weight AI models, partly in response to competition from free, high-performing Chinese open-weight models such as DeepSeek.
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Chinese AI labs (e.g., DeepSeek)
Source of competitive pressure - the most advanced open-weight models reportedly originate from Chinese companies offering them for free, undercutting the economics large US AI labs have relied on.