Trust the free marketMeta has long sought to position itself as a champion of open source AI, which unlike proprietary models can be freely accessed and modified by third-party developers. Muse Glimmer, the new model released today by Meta, is not open source. Open source AI has become a political flashpoint in recent months in the wake of a flurry of new AI models from Chinese AI labs, many of them open source, that rival the capabilities of the most advanced American-made models. In a closed-door meeting with American tech executives last week, White House officials reportedly shared a draft of their new framework for testing the safety of unreleased AI models. Open source models are currently exempt.