Story perspectives

US Accuses Moonshot AI of Theft, Firms Urge Open Models

7/25/2026

Summary

U.S. Officials Accuse

U.S. officials accused Moonshot AI of distilling Kimi K3 from Anthropic’s Fable 5.
Treasury Secretary Scott Bessent warned that sanctions could be imposed.
The Commerce Department is probing whether Moonshot and other Chinese firms illegally accessed advanced U.S. chips.
Analysts Paul Triolo warned the dispute could derail the September AI safety dialogue and the September 24 Trump-Xi summit.
Yoshua Bengio warned that open-weight frontier models are hard to secure once released.

Summary

Tech Giants Urge

25 firms including Nvidia, Microsoft, IBM, Meta, Perplexity and Hugging Face signed an open letter urging U.S. policymakers to avoid “premature restrictions” on open-weight AI models.
Nvidia chief Jensen Huang posted the letter on X, saying open models strengthen safety, accelerate innovation, and will increase demand for GPUs and cloud compute.
The letter urges the administration to expand compute access for startups and fund training assets like datasets and tools.

History

Historical Context

OpenAI’s February 2019 announcement to withhold the full 1.5-billion-parameter GPT-2, offering only a 774-million-parameter version, citing misuse risks, marked its first major shift from open-source practice and coincided with its 2019 conversion to a for-profit entity. The 2024 controversy, in which Moonshot AI is accused of copying Anthropic’s Kimi K3, revives those safety concerns and prompts calls from firms such as Nvidia and Meta for stricter safeguards.

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U.S. Officials Accuse

U.S. officials accused Moonshot AI of distilling Kimi K3 from Anthropic’s Fable 5.
Treasury Secretary Scott Bessent warned that sanctions could be imposed.
The Commerce Department is probing whether Moonshot and other Chinese firms illegally accessed advanced U.S. chips.
Analysts Paul Triolo warned the dispute could derail the September AI safety dialogue and the September 24 Trump-Xi summit.
Yoshua Bengio warned that open-weight frontier models are hard to secure once released.

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