Microsoft, Nvidia, Meta urge US government to support open-weight AI models

Major US tech firms signed a joint letter asking the government to back open-weight AI, as Chinese competitors gain ground.

A coalition of major American technology companies — including Microsoft, Nvidia, Meta, and IBM — has sent a joint letter to the US government urging it to support open-weight AI models and avoid placing restrictions on them. The letter argues that open-weight models, which make AI model parameters publicly available, are essential to maintaining American leadership in artificial intelligence. The signatories contend that open-weight AI expands access to the technology, strengthens competition, and can improve security by allowing broader scrutiny of model behavior. The letter frames government support for these models as a strategic priority at a moment when Chinese open-weight models are increasingly competing with leading American offerings. Notably absent from the letter are OpenAI and Anthropic, two of the most prominent US AI companies — both of which develop proprietary, closed-weight models and have previously raised concerns about the risks of widely releasing model weights. Their absence highlights a significant divide within the American AI industry over how openly powerful AI systems should be distributed.

Why it matters

The US government's stance on open-weight AI could shape both domestic competition policy and America's position in a global AI race where Chinese models are closing the gap. Restrictions on open-weight models would directly affect how startups, researchers, and international partners can access and build on advanced AI.

What's next

The US government has not yet responded publicly to the letter, and its policy direction on open-weight AI regulation remains to be determined.

Key facts

• Signatories include Microsoft, Nvidia, Meta, and IBM, among other tech companies
• OpenAI and Anthropic — both closed-model developers — did not sign the letter
• The letter specifically warns against 'premature restrictions' on open-weight AI models
• Chinese open-weight models are cited as growing competition for American AI offerings
• Microsoft published its own accompanying statement titled 'Open Weights and American AI Leadership'
• Open-weight models make AI model parameters publicly available, unlike closed proprietary systems

Bias & framing notes

The Microsoft source is a first-party statement and naturally presents the pro-open-weight case without criticism. CNBC's framing emphasizes competitive threat from China and the notable absence of OpenAI and Anthropic, giving the story more tension. NDTV Profit's coverage is largely neutral and descriptive. No source substantially represents the perspective of those skeptical of open-weight models, such as OpenAI or Anthropic, whose absence is noted but whose reasoning is not quoted in the available reporting.

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