Microsoft: Open Weights and American AI Leadership
Nvidia, Microsoft, Meta warn against overregulating open-weight models
Drawing parallels to the open-source software revolution, I argue that American AI leadership depends on building a strong, open ecosystem. Open weight models allow organizations to adapt advanced AI without prohibitive costs, fostering competition and preventing market concentration. While risks exist, transparency and broad access are essential for true AI safety and ensuring the benefits of this technology are shared across our entire economy.
Just as open-source software demonstrated that transparency can be more secure than obscurity, AI safety may depend on giving more people the ability to test and strengthen the models on which society relies.
- novaleaf
Some irony: I subscribe to Claude and Codex (20x plans), and now Kimi.
Why Kimi? because K3 is the only frontier model I can have a serious conversation with about my product's security.
(I did apply for OpenAi's Cyber Pilot but got no response)
- GodelNumbering
I posted earlier on reddit that at this point, the closed source lobby wanting to ban open weights is effectively outgunned (musk also publicly supported this).
The oddly reminds me of back in the day when SOPA had caused a similar stir (https://en.wikipedia.org/wiki/Stop_Online_Piracy_Act), and all HN was up in arms against it.
- dang
From yesterday:
Startup founders urge U.S. government not to shut off Chinese open weight AI - https://news.ycombinator.com/item?id=49023016 - July 2026 (841 comments)
Also related:
OpenAI and Anthropic unite against open-weight AI risks to their bottom line - https://news.ycombinator.com/item?id=49020868 - July 2026 (330 comments)
China’s open-weights AI strategy is winning - https://news.ycombinator.com/item?id=48979269 - July 2026 (932 comments)
The gap between open weights LLMs and closed source LLMs - https://news.ycombinator.com/item?id=48692058 - June 2026 (250 comments)
The unbearable cheapness of open weight models - https://news.ycombinator.com/item?id=48668255 - June 2026 (186 comments)
- christina97
I wonder what is happening behind closed doors for these companies to be issuing such a joint letter.
- ma2kx
It would be interesting to know how many optimizations of the Chinese models were incorporated back into Claude and Codex.
- Linserin
Just saw on Microsoft
https://www.microsoft.com/en-us/corporate-responsibility/top...
- lr1970
The list of companies that signed this letter is telling (including Nvidia, Meta, Microsoft). Equally telling is the list of companies that did not sign it -- including Google, Amazon.
- credit_guy
If you see the long 3rd paragraph twice, know that you are not alone.