Meta, which competed with open-source AI models before shifting its focus to a closed approach, is putting renewed emphasis on its open-source AI model strategy.

Meta will release the weights for its top AI model, Muse Spark 1.2, and also roll out a new open-source model for consumer devices.

On Aug. 10, CNBC reported that Meta also plans to launch a new model family, Muse Glimmer, that can run on laptops.

Muse Glimmer is a 30 billion-parameter model. Its weights will be distributed under the Apache 2.0 licence, allowing developers to download and modify them.

Chief Executive Mark Zuckerberg (마크 저커버그) said he will make the Muse Spark 1.2 weights available to the public. The weights are computational values and rules that determine how AI operates and behaves, and anyone will be able to download and use them once they are released.

Muse Glimmer is designed for AI agents that perform multi-step tasks. With only a single consumer GPU on a Mac or PC, it can handle tool calling, code writing and debugging, file and screenshot tasks, and running long workflows. It supports text and images and was trained in more than 100 languages.

Meta presented use cases for Muse Glimmer such as scheduling, drafting messages and organising files, which require access to personal data.

Meta aims to lay the groundwork for personal agents that respond sensitively to privacy by processing data on users' devices without sending information to the cloud.

Meta's move comes as OpenAI and Anthropic focus on closed AI models while Chinese companies such as Alibaba, DeepSeek and Moonshot expand their share with an open-weight strategy that discloses weights.

Zuckerberg, in a 6,500-word post, described the strategy as a move to counter China's open-source technology.

He said restricting U.S. access to overseas open-source models was not an effective solution. He also stressed that the United States should revisit various policies, including distillation and the use of training data, to secure leadership in open-source AI.

Zuckerberg also criticised a structure in which AI power is concentrated in a small number of companies. He said the idea that AI is so dangerous that only extreme concentration of power is the safe path is itself a problem.

He also said, "Personal agents will help users 24 hours a day with relationships, health, careers, finances, household management and hobbies, and everyone will gain access to these tools for free or at an affordable cost."

Meta shares rose 2.1 percent in premarket trading on the day, but are down about 10 percent so far this year.

Meta launched Meta Superintelligence Labs last year and expects capital expenditure to reach as much as 145 billion dollars this year.