Коалиция NVIDIA за открытые веса ИИ выросла до 50 компаний, Anthropic не подписала

On July 24, 2026, NVIDIA CEO Jensen Huang published a coalition letter titled "Open Weights and American AI Leadership" as his very first post on X, urging US authorities not to restrict open AI models. Within a day, the number of signatories doubled from 25 to 50 companies, but Anthropic still did not sign it.

Who signed the letter

The letter "Open Weights and American AI Leadership" was organized by Jensen Huang, CEO of NVIDIA, and within the first 24 hours the list of signatories doubled — to 50 technology companies. The biggest addition was Google: the initiative was publicly backed by both Sundar Pichai, CEO of Google, and Demis Hassabis, head of Google DeepMind. The letter calls on Washington not to impose restrictions on the distribution of open models and frames openness as a condition for American leadership in AI.

*Publication date — July 24, 2026, Huang's first post on X

*Signatories rose to 50 within a day, up from 25 the day before

*Signatories include NVIDIA, Microsoft, Meta, Google, and OpenAI

*Anthropic and Amazon did not sign the letter

*Google's open-weight Gemma models have been downloaded more than 300 million times

Why Google joined

Google backed the letter because it is itself betting on open models. Sundar Pichai reminded everyone that the company has long developed open-source code and already releases open weights for its Gemma family. Demis Hassabis cited figures: Gemma has been downloaded more than 300 million times, and he named JAX, the transformer architecture, and the AlphaFold project as Google DeepMind's contributions to the open ecosystem. At the same time, Hassabis proposed not stopping at a slogan, but establishing a single standardizing framework that would support both open and proprietary models.

Demis

Hassabis noted that Gemma's open weights have been downloaded more than 300 million times, and proposed a single standardizing framework for open and proprietary models. — Demis Hassabis, CEO of Google DeepMind

Why Anthropic did not sign

Anthropic turned out to be the only one of the major frontier labs not to sign, and the company did not give an official position. Instead of a corporate statement, only one of its employees responded on X — researcher Julian Schrittwieser: he sarcastically suggested that NVIDIA open-source CUDA in response, and that Microsoft do the same with Windows and Office.

According to CNBC, Anthropic is quietly lobbying in Washington for restrictions on open models — which explains its absence from the list. The refusal fits into a long-standing conflict: Jensen Huang has publicly stated that he disagrees with almost everything Anthropic CEO Dario Amodei says. Amazon, Anthropic's largest investor, also ignored the letter, even though it is not considered a leader in the large language model segment; at the same time, Google itself also invests in Anthropic.

Coinciding with the dispute around Anthropic was a separate episode: researcher Andrej Karpathy removed the mention of the company from his X profile 68 days after joining, which sparked rumors about his departure.

"Weird misinformation,"

Andrej Karpathy said commenting on the rumors about his departure from Anthropic; he still has not restored the mention of the company in his X profile.

What it means

The dispute over open weights has turned into a public dividing line between frontier labs: NVIDIA, Google, and OpenAI advocate for the free distribution of models, while Anthropic maintains a cautious, regulated approach. The company's position on openness is now just as visible as its models, and the coalition's growth to 50 members within a day shows which side the public majority of the industry currently favors.

Frequently asked questions

Who signed Huang's letter on open weights?

Within a day, 50 companies joined the letter "Open Weights and American AI Leadership," including Google, OpenAI, NVIDIA, Microsoft, and Meta. Among the major players, Anthropic and Amazon did not sign it.

Why didn't Anthropic sign the letter?

Anthropic did not give an official position. According to CNBC, the company is instead lobbying in Washington for restrictions on open models, which directly contradicts the call of Huang's coalition.

*Meta is recognized as an extremist organization and is banned in Russia.