It makes sense to see Meta, the startups, and the VC firms on this list. And it makes sense to see OpenAI, Anthropic, and Google all missing. Microsoft is somewhat unexpected to me. I don't think of them as having a focus on open weight models (no more than Google), and they have a large stake in OpenAI. Maybe they're looking at this from the angle of Azure providing compute. But then why is Amazon missing, when it has AWS?
And of course, we don't see DeepSeek, Moonshot, or Z.ai on here. The letter is about American technological leadership after all. But then we _do_ see the French company Mistral! Mistral who released [a playbook](https://europe.mistral.ai/) for Europe becoming a self-reliant AI powerhouse.
I assume all of this is in the context of influencing the Trump administration's thinking on Chinese open weights models. But the letter is really about _American_ open weights models. The call to action is all about keeping the American open weights ecosystem competitive. I didn't even realize that was under threat, so I feel like I'm missing something."},"story_title":{"fullyHighlighted":false,"matchLevel":"partial","matchedWords":["open","weights"],"value":"Nvidia, Microsoft, Meta warn against overregulating open-weight models"},"story_url":{"fullyHighlighted":false,"matchLevel":"partial","matchedWords":["open","weights","ai"],"value":"https://www.cnbc.com/2026/07/24/nvidia-microsoft-meta-open-weight-ai-models.html"}},"_tags":["comment","author_austin-schick","story_49035303"],"author":"austin-schick","children":[49037248,49037378,49037634,49037683,49038130,49040191,49040193,49040315,49040638],"comment_text":"I'm finding the list of signatories on this letter really interesting and somewhat confusing, looking purely through the lens of economic interest.
It makes sense to see Meta, the startups, and the VC firms on this list. And it makes sense to see OpenAI, Anthropic, and Google all missing. Microsoft is somewhat unexpected to me. I don't think of them as having a focus on open weight models (no more than Google), and they have a large stake in OpenAI. Maybe they're looking at this from the angle of Azure providing compute. But then why is Amazon missing, when it has AWS?
And of course, we don't see DeepSeek, Moonshot, or Z.ai on here. The letter is about American technological leadership after all. But then we _do_ see the French company Mistral! Mistral who released [a playbook](https://europe.mistral.ai/) for Europe becoming a self-reliant AI powerhouse.
I assume all of this is in the context of influencing the Trump administration's thinking on Chinese open weights models. But the letter is really about _American_ open weights models. The call to action is all about keeping the American open weights ecosystem competitive. I didn't even realize that was under threat, so I feel like I'm missing something.","created_at":"2026-07-24T15:28:45Z","created_at_i":1784906925,"objectID":"49037100","parent_id":49035303,"story_id":49035303,"story_title":"Nvidia, Microsoft, Meta warn against overregulating open-weight models","story_url":"https://www.cnbc.com/2026/07/24/nvidia-microsoft-meta-open-weight-ai-models.html","updated_at":"2026-07-29T07:44:23Z"}],"hitsPerPage":20,"nbHits":5,"nbPages":1,"page":0,"params":"query=Open+Weights+and+American+AI+Leadership&advancedSyntax=true&analyticsTags=backend","processingTimeMS":40,"processingTimingsMS":{"_request":{"roundTrip":21},"fetch":{"query":27,"scanning":12,"total":40},"total":40},"query":"Open Weights and American AI Leadership","serverTimeMS":41}