The tech giant released a new open-weight AI model on Monday, along with an essay from Mark Zuckerberg saying lower barriers are needed for open-weight tech in order for U.S. models to compete with Chinese ones. The letter is the most recent show of support for open-weight models after a letter from top tech firms late last month, and comes after a Chinese open-weight model was used to contain an AI test gone wrong.

Mark Zuckerberg slams OpenAI and Anthropic's closed AI approach, signaling Meta's return to open-source models after its brief proprietary detour

Meta CEO Mark Zuckerberg called for lower U.S. barriers for open-source AI models to compete with Chinese rivals.